I really enjoyed this vid and appreciate making it. The only turndown for HP Z840 or any other Z series including all the Z8xx and Z6/Z8 series is their pure performances. In short, a used "more modern" or say, a newer workstation has not only better performance, but also cheaper than "maximizing the old Z840" in the end. All these effort and tryouts, which I great appreciate and enjoyed, ends up at some 600/8000 Geekbench5 single/multi score. Seriously, a used Lenovo P620 with entry level AMD TR pro reaches somewhere around 1200/12000 and it costs about $1~1.2k, and it's much more quiet than any Z840 or any other HP Z series. I've once considered dual 2699v4 Z840 for generative AI and video works, only to find that there are other tempting solutions other than this old HP Zs. I had a chance to compare newer Z6 G4 workstations with xeon silver/gold or platinum cpus with this "few years younger" Lenovo TR pro workstations and the results are same, the young P620 wins. And this younger workstation comes with native nvme slots, and provide better cooling, less noise and much less power consumption due to its being a single cpu workstation. It's about Z640/840 size and much more compact(shorter depth) than Z8 . For gaming or some Adobe works where single processing power is critical, all the so-called gaming CPUs such as Intel's 12/13/14th gen i9 or AMD's 5950x and upward will blow any old HP workstations outta water. And we choose workstations for reliability, since we appreciate reliability over just performances. But I can't help asking myself that isn't having a 7+ old system or 3+ more generations behind unreliable? If a clean Z840 with e5 v3/v4 20+ core dual CPU and 128+ GB memory comes at $600~800, I'd say it's still expensive and not worth putting efforts in this context.
Hi. Yes I would agree that the P620 is great value - especially given the CPU support, fast RAM, NVMe slot and overall efficiency. For me locally the P620’s are not available (I am in NZ), and when they do come up for sale they are ~$1500 USD. The Z840’s are priced around the same amount here - $1400 USD. The main drawback with the P620 is the PSU - it would not support a high tier GPU like the RTX 3090 Ti that I have powered on my Z840’s 1450W PSU. For the amount spent the Z840 does provide a lot of cores to complete complex tasks, at the cost of single core performance. But Xeons just don’t compete with Ryzen CPUs on single core speed - their entire design is to maximise PCIe lanes and cores. I have 6x PCIe slots used on my Z840 (NVMe Boot drive, RTX 3090 Ti, 2x port USB 3.1, 2x port USB C, ASUS Hyper M.2 V2 with 4x NVMes). My Z840 has not missed a beat since I got it and it has been on daily for 2 years - ~10-14 hours per day. More recently the CPU single core clock speed has become noticeably annoying (lots of lag and stutter in DaVinci Resolve during playback - but only a single CPU core is at 100% for that task - so high clock speed would help for that). I have checked for CPU upgrades - the E5-2697 V4 would be the best option in terms of single core performance, but relative to the HP Z8 G4 and its Xeon scalable processors it falls behind again. The first gen Xeon scalable processors (61xx or 81xx - 195W and lower) are at a decent price point right now, some of them are cheaper than the E5-2697 V4’s (e.g. Gold 6148 (20 Core 40 Thread, 2.4GHz Base, 3.7GHz boost costs around $120 USD). The issue is the cost of the HP Z8 G4. In a year or two I would expect the Z8 G4 to come down in price. Right now the HP Z6 G4 is already better priced than the Z640 at times. For say $550 - 850 USD you can get a decent system - or go for bare bones and upgrade to what you need. If you have the hardware (HDDs, NVMes, GPU etc.) and just need the motherboard, CPU and RAM it could be a solid machine.
@@racerrrzTotally agree with the fact that HP Zs are solid machines, and I myself was a Z800 lover some time ago. And again, not only I appreciate your contents, but I also appreciate your feedback. Actually, I had a chance to use Z840 with dual 2699v4s and a Z8 with dual Platinum 8xxx, and I couldn't noticed any performance increase between the two via Adobe apps, unfortunately I couldn't have a chance to compare them other than video rendering in Adobe. So I was somewhat disappointed with newer xeons. And as you may expected, the TR pro I've mentioned earlier beat the two of them in the same comparison, even though it was 3945wx or something that was not even on sale for regular market because it's some sort of entry level cpu that AMD only supply to the companies like Lenovo, at least that's what I've heard. And I can't speak for 3090ti but I saw 2 P620s with 3080ti, and AFAIK P620 has 1000W psu so thought that's normal, so why not 3090ti? I saw bunch of Z820/840s with ridiculous number of cores, going so cheap and I've heard they're good tool for some type of coin mining. In the situation where unabused P620s due to its being relatively less-known/popular going for $1k, while former coin miner Z840s going for $1.3~1.5k and beyond, P620 is a nobrainer. Of course, not bashing Z840 or any other HP products here. Keep up the great contents!
@@DongTaan112 You sound well versed with your Z8xx workstations. The Z840 is difficult to beat on performance for the price point - especially with the E5-2699 V4’s (they are still really expensive!). Comparing the E5-2699V4’s with Platinum 8xxx might be a challenge, unless you had a decent set of Scalable CPUs to compete with the top of the range Broadwell CPUs. I prefer the Gen 2 Scalable processors for their ability to use 2933Mhz memory. The newer Z8 G4 should outperform the Z840 on every bench if the CPU Cores and Clock speed is more or less matched. The Scalable processors also tend to have higher turbo clock speeds which may help with single core performance. Something like the Gold 6254’s would be nice. The Threadripper Pro 3945wx should find the dual Gold 6254’s a good performance challenge. The Z840 and Haswell/Broadwell CPU prices have fallen quite a lot in the last year which should open up more options for people to secure these systems for reasonable prices. I have been working flat-out to get the next video done. Keep an eye out for the HP Z440 case swap video - it is intense!
Hi Mike. These Z Coolers did not come supplied with the 3-pin header! I presume they were just not supplied or removed / damaged. I'll see if I can figure out a quick solution for this in the future. The mounting screw for the wire can be seen at 15:42. But at least this gives a "fair" comparison without adjustment of the fan profiles. It will be interesting to see if getting the motherboard to recognize the presence of the Z Coolers will change thermal performance, or just acoustics. I need to get something to measure fan noise levels with!
Im wondering if you could post links as to where you got the cables to connect your 3080 gpu also a link for ram modules. i need 128 gb in 32 gb modules. Thanks
Hi there. Sorry, I noticed I missed out on updating this video with affiliate links, I have added them just now for your reference. I have those details up in separate videos also. I have done two GPU fitment guide videos for the Z840 (one for the Asus Strix RTX 3080 and one for the Zotac Amp Holo Extreme RTX 3090 Ti), a RAM fitment guide and a full system deep-dive. You may also enjoy my recent Z840 deep-dive video which covers everything you need in one place: ruclips.net/video/2bie4EGJZL0/видео.html
If my workload is constant full-core utilization at 2.8ghz then will these coolers be good? I'm contemplating changing to these or even aftermarket with getting rid of the cooling box.
In my end use situation these coolers have worked really well compared with the stock Z840 coolers. A good thermal paste goes a long way also - the best one I have used is Thermal Grizzly Kryonaut. What CPU have you got in your system? The TDP CPUs (e.g. E5-2687W V4) may be able to overheat with these Z Coolers if held at 100% use for extended periods. My E5-2697 V3's held a constant ~73-76'C in Cinebench R23 10min tests (with Arctic Silver 5 thermal paste). If you do go aftermarket you may want to keep the loom from the CPU/RAM fan shroud. HP used a proprietary connector to power the fans - and adding in more airflow over the RAM modules could be of benefit.
@@racerrrz Thank you for the quick reply! I have the E5-2697 v4's. I have about 72-80C on CPU0 and 65-72C on CPU1. I use my workstation pretty regularly for full core utilization at these temps (upwards of a week at a time). I'm know hp has proprietory fan connectors but I believe the pinouts can be modified. Do you think it's worth going for these coolers you have or to do full aftermarket? It will actually be about the same cost and I'm not too worried about overheating memory.
Sorry I overlooked your message! Your temperatures are actually ok, but you could lower them down by ~ 5-10'C. I found the Z Coolers were good for ~ a 5'C drop over the stock cooler without adjusting the fan profiles etc. Add in a good thermal paste and you may shave another 5'C. There could be some issues with fitting aftermarket coolers. I only recall ever seeing one video on the topic - David Does Tech Stuff did a Z800 build and he covered issues that he ran into with fitting aftermarket coolers. I suspect the Z840 will present the same challenges. Given that the Z Coolers do the job I would go for them just out of ease of installation. But if you wanted something more custom you could try aftermarket. The main issue in the CPU fan module which would not accommodate any cooler but the HP coolers. You could bypass or rework that system but it would get messy.
7 месяцев назад+2
It would have been interesting to test with only one upgraded so you can compare old to new directly. The stock coolers are shockingly bad. But upgrading some parts on these machines is crazy expensive, so you are better off upgrading just the stuff that is cheaper, like upgrading to better CPUs.
That's a fair point. The stock coolers would really benefit from a machined flat contact surface. The manufacturing process has left some deep trenches on the mating surface which can only be a negative in their overall efficiency. The Z Coolers address that but at a cost. In saying that, the HP Z840 is quite old now and generally the parts are quite cost effective. CPUs are cheaper now than they have ever been (~$60USD for a E5-2697 V4 as an example). The Z Coolers are still expensive because there is a limited supply of them. I found that using a high efficiency thermal paste is quite useful to drop your temperatures further. The best thermal paste I have tested was Thermal Grizzly Kryonaut - it's my go-to for the time being.
Hi. In an ideal world there are many better tests that could be done to more accurately determine the thermal difference. My thermal comparison was focused on “real world mixed applications” and I selected a range of tasks that could stress the CPU with the Stock Coolers and then with the Z Coolers. I used several software packages to collect data, but HWiNFO was the main data-logging software. My aim was to test: Cinebench R23, Kombustor CPU Burner, Geekbench 5, Borderlands 3, Forza Horizon 5 software packages with HWiNFO data-logging before (stock coolers - aged thermal paste) and after Z Coolers (new thermal paste). I used the same thermal paste - Arctic Silver 5, but ideally a longer run-in time would have been needed before recording (the difference might have been larger). I chose to use Cinebench R23 because it is a gold standard CPU stress test that can equally load multi cores on both Xeon CPUs. I included Kombustor CPU Burner because that can place 100% load on all Cores on both Xeons (it only stressed one Xeon when I did my testing but looks like it has been updated now to stress both CPUs), which can help test thermal load. The longer the test is run the more effectively you’ll be able to determine the thermal difference between the cooler designs. I also included Geekbench 5 as a CPU benchmark that provides some indication of how these CPUs stack up relative to other CPUs. For some gaming stress tests, I included Borderlands 3 because it has a build-in benchmark. This benchmark will not be CPU straining but reflects the typical strain from gaming. I also included Forza Horizon 5 gameplay, but this wasn’t particularly taxing on the CPUs. Together the gaming mostly demonstrates that the aged Xeons can handle modern titles in 4K without breaking a sweat. Looking back, it would be beneficial to test multiple software platforms that can strain the CPUs evenly. If I had to redo the test I would include Prime95 and AIDA64 along with Cinebench R23 and Kombustor CPU Burner. But in reality, only one of these tests would be needed and it would be more useful to run the tests for longer - say 1 hour. But I can’t justify the power bill these CPUs would generate after 1 hour at 100% use. I would have liked to include some thermal imaging camera footage, but they aren’t a cheap item (I did consider it). I could take some infrared temperature sensor readings of the cooler blades and baseplate for some extra data. Not a perfect test, but the results give a fair indication of how these CPU Coolers will benefit most modern tasks (from 100% Multi-Core Multi-CPU strain to Single Core strain). i.e. ~5'C / 9'F reduction.
Absolutely it would, but it's only needed if you really load these CPUs with work! This Cooler test was done without BIOS changes. So, more or less, the thermal effect of the Z Cooler over the Stock Cooler without any other changes. I'll see if I can sort out a new sensor cable for these Coolers to see what effect the HP Programmed Profile has on the Thermals. So far the Z coolers have settled well. Idle CPU temp. is ~37'C right now (use to be ~48'C on idle).
Hi. I have you covered, this is where I got mine: ebay.us/8y6JID (Ebay affiliate link - I'll gain a small profit at no extra charge if you buy using this link). They were priced ~$150-250 USD each a year or so ago, so the current pricing is really good. They really are worth it if you are fitting any powerful CPUs to your Z840. Which CPUs have you got at the moment? I am busy with a review video for the Z840 which will cover which CPUs are best for the Z840 - the E5-2696 V4 is well priced at the moment (I hope to release the video in 2 weeks or so).
@@racerrrz Thanks for the reply :) . at present i have 2680 V4. Even used V4s are expensive in india. I hope there will be an imporovement with the Z coolers with my exisiting CPUS.. i have asked for one more help in your other video related to installing RTX 3080 on the HPZ840.
@@chirpingbluebird Great choice, the E5-2680 V4 is a solid performer. They are expensive for me locally also (I am in NZ), I just import them from Ebay or AliExpress. CPU prices have fallen heaps compared with a couple of years back. I priced up E5-2697A V4's for over $150 USD each in April 2022, but I picked one up for ~$65 USD in Oct. 2023 from Ebay. You should be fine with the E5-2680 V4, but if you wanted more cores there were other options also. I'll check for that comment.
@@racerrrz am happy with the CPU.. so ebay wont ship the Z cooler heat sink to india :( "Unfortunately, this seller will not ship this item to KA, India. Here is what you can do: - Update your shipping address and try again. - Find similar items from another seller."
@@chirpingbluebird That's really annoying! That is the only listing I can trace for the Z Cooler at the moment. P/N: 781908-001. It looks like parts for the Z840 are slowing down. The only alternative for items like that is freight forwarding. Do you have a service in India that would allow for shipping your purchase to a local shipping warehouse who then process / receive the item and ship it to you? I have used these services for items that I just could not get otherwise. It ends up more expensive but at least you get the item.
Good question. I am not aware of anyone that has published a case swap for the Z840 motherboard. But I do recall the Z800 motherboard finding its way into a custom case (Link andybrown.me.uk/2014/11/01/z800/ ) . Going off this reference, the Z800 motherboard mounts are custom / not ATX, meaning you would need to drill and tap your own motherboard stand-offs into a full tower to get it to fit. The Z840 motherboard would present similar challenges. It would make for an intense case swap, but with some custom dual CPU watercooling, and throw in a RTX 4090 and RGB, it sure would be a monstrosity!
![Baby Kia - GLOVES & DRACS (BLACK AF1s) [Official Music Video]](http://i.ytimg.com/vi/ajm8LeB0qQk/mqdefault.jpg)
I really enjoyed this vid and appreciate making it. The only turndown for HP Z840 or any other Z series including all the Z8xx and Z6/Z8 series is their pure performances. In short, a used "more modern" or say, a newer workstation has not only better performance, but also cheaper than "maximizing the old Z840" in the end.
All these effort and tryouts, which I great appreciate and enjoyed, ends up at some 600/8000 Geekbench5 single/multi score. Seriously, a used Lenovo P620 with entry level AMD TR pro reaches somewhere around 1200/12000 and it costs about $1~1.2k, and it's much more quiet than any Z840 or any other HP Z series. I've once considered dual 2699v4 Z840 for generative AI and video works, only to find that there are other tempting solutions other than this old HP Zs. I had a chance to compare newer Z6 G4 workstations with xeon silver/gold or platinum cpus with this "few years younger" Lenovo TR pro workstations and the results are same, the young P620 wins. And this younger workstation comes with native nvme slots, and provide better cooling, less noise and much less power consumption due to its being a single cpu workstation. It's about Z640/840 size and much more compact(shorter depth) than Z8 .
For gaming or some Adobe works where single processing power is critical, all the so-called gaming CPUs such as Intel's 12/13/14th gen i9 or AMD's 5950x and upward will blow any old HP workstations outta water. And we choose workstations for reliability, since we appreciate reliability over just performances. But I can't help asking myself that isn't having a 7+ old system or 3+ more generations behind unreliable?
If a clean Z840 with e5 v3/v4 20+ core dual CPU and 128+ GB memory comes at $600~800, I'd say it's still expensive and not worth putting efforts in this context.
Hi. Yes I would agree that the P620 is great value - especially given the CPU support, fast RAM, NVMe slot and overall efficiency. For me locally the P620’s are not available (I am in NZ), and when they do come up for sale they are ~$1500 USD. The Z840’s are priced around the same amount here - $1400 USD.
The main drawback with the P620 is the PSU - it would not support a high tier GPU like the RTX 3090 Ti that I have powered on my Z840’s 1450W PSU. For the amount spent the Z840 does provide a lot of cores to complete complex tasks, at the cost of single core performance. But Xeons just don’t compete with Ryzen CPUs on single core speed - their entire design is to maximise PCIe lanes and cores. I have 6x PCIe slots used on my Z840 (NVMe Boot drive, RTX 3090 Ti, 2x port USB 3.1, 2x port USB C, ASUS Hyper M.2 V2 with 4x NVMes).
My Z840 has not missed a beat since I got it and it has been on daily for 2 years - ~10-14 hours per day. More recently the CPU single core clock speed has become noticeably annoying (lots of lag and stutter in DaVinci Resolve during playback - but only a single CPU core is at 100% for that task - so high clock speed would help for that). I have checked for CPU upgrades - the E5-2697 V4 would be the best option in terms of single core performance, but relative to the HP Z8 G4 and its Xeon scalable processors it falls behind again.
The first gen Xeon scalable processors (61xx or 81xx - 195W and lower) are at a decent price point right now, some of them are cheaper than the E5-2697 V4’s (e.g. Gold 6148 (20 Core 40 Thread, 2.4GHz Base, 3.7GHz boost costs around $120 USD). The issue is the cost of the HP Z8 G4. In a year or two I would expect the Z8 G4 to come down in price.
Right now the HP Z6 G4 is already better priced than the Z640 at times. For say $550 - 850 USD you can get a decent system - or go for bare bones and upgrade to what you need. If you have the hardware (HDDs, NVMes, GPU etc.) and just need the motherboard, CPU and RAM it could be a solid machine.
@@racerrrzTotally agree with the fact that HP Zs are solid machines, and I myself was a Z800 lover some time ago. And again, not only I appreciate your contents, but I also appreciate your feedback.
Actually, I had a chance to use Z840 with dual 2699v4s and a Z8 with dual Platinum 8xxx, and I couldn't noticed any performance increase between the two via Adobe apps, unfortunately I couldn't have a chance to compare them other than video rendering in Adobe. So I was somewhat disappointed with newer xeons. And as you may expected, the TR pro I've mentioned earlier beat the two of them in the same comparison, even though it was 3945wx or something that was not even on sale for regular market because it's some sort of entry level cpu that AMD only supply to the companies like Lenovo, at least that's what I've heard.
And I can't speak for 3090ti but I saw 2 P620s with 3080ti, and AFAIK P620 has 1000W psu so thought that's normal, so why not 3090ti? I saw bunch of Z820/840s with ridiculous number of cores, going so cheap and I've heard they're good tool for some type of coin mining.
In the situation where unabused P620s due to its being relatively less-known/popular going for $1k, while former coin miner Z840s going for $1.3~1.5k and beyond, P620 is a nobrainer. Of course, not bashing Z840 or any other HP products here.
Keep up the great contents!
@@DongTaan112 You sound well versed with your Z8xx workstations. The Z840 is difficult to beat on performance for the price point - especially with the E5-2699 V4’s (they are still really expensive!). Comparing the E5-2699V4’s with Platinum 8xxx might be a challenge, unless you had a decent set of Scalable CPUs to compete with the top of the range Broadwell CPUs.
I prefer the Gen 2 Scalable processors for their ability to use 2933Mhz memory. The newer Z8 G4 should outperform the Z840 on every bench if the CPU Cores and Clock speed is more or less matched. The Scalable processors also tend to have higher turbo clock speeds which may help with single core performance. Something like the Gold 6254’s would be nice.
The Threadripper Pro 3945wx should find the dual Gold 6254’s a good performance challenge. The Z840 and Haswell/Broadwell CPU prices have fallen quite a lot in the last year which should open up more options for people to secure these systems for reasonable prices.
I have been working flat-out to get the next video done. Keep an eye out for the HP Z440 case swap video - it is intense!
Great vid! Did you not connect the coolers cable to motherboard? I think it gives some temperature insight to the motherboard
Hi Mike. These Z Coolers did not come supplied with the 3-pin header! I presume they were just not supplied or removed / damaged. I'll see if I can figure out a quick solution for this in the future. The mounting screw for the wire can be seen at 15:42. But at least this gives a "fair" comparison without adjustment of the fan profiles. It will be interesting to see if getting the motherboard to recognize the presence of the Z Coolers will change thermal performance, or just acoustics. I need to get something to measure fan noise levels with!
Im wondering if you could post links as to where you got the cables to connect your 3080 gpu also a link for ram modules. i need 128 gb in 32 gb modules. Thanks
Hi there. Sorry, I noticed I missed out on updating this video with affiliate links, I have added them just now for your reference.
I have those details up in separate videos also. I have done two GPU fitment guide videos for the Z840 (one for the Asus Strix RTX 3080 and one for the Zotac Amp Holo Extreme RTX 3090 Ti), a RAM fitment guide and a full system deep-dive. You may also enjoy my recent Z840 deep-dive video which covers everything you need in one place: ruclips.net/video/2bie4EGJZL0/видео.html
If my workload is constant full-core utilization at 2.8ghz then will these coolers be good? I'm contemplating changing to these or even aftermarket with getting rid of the cooling box.
In my end use situation these coolers have worked really well compared with the stock Z840 coolers. A good thermal paste goes a long way also - the best one I have used is Thermal Grizzly Kryonaut. What CPU have you got in your system? The TDP CPUs (e.g. E5-2687W V4) may be able to overheat with these Z Coolers if held at 100% use for extended periods. My E5-2697 V3's held a constant ~73-76'C in Cinebench R23 10min tests (with Arctic Silver 5 thermal paste). If you do go aftermarket you may want to keep the loom from the CPU/RAM fan shroud. HP used a proprietary connector to power the fans - and adding in more airflow over the RAM modules could be of benefit.
@@racerrrz Thank you for the quick reply! I have the E5-2697 v4's. I have about 72-80C on CPU0 and 65-72C on CPU1. I use my workstation pretty regularly for full core utilization at these temps (upwards of a week at a time). I'm know hp has proprietory fan connectors but I believe the pinouts can be modified. Do you think it's worth going for these coolers you have or to do full aftermarket? It will actually be about the same cost and I'm not too worried about overheating memory.
Sorry I overlooked your message! Your temperatures are actually ok, but you could lower them down by ~ 5-10'C. I found the Z Coolers were good for ~ a 5'C drop over the stock cooler without adjusting the fan profiles etc. Add in a good thermal paste and you may shave another 5'C.
There could be some issues with fitting aftermarket coolers. I only recall ever seeing one video on the topic - David Does Tech Stuff did a Z800 build and he covered issues that he ran into with fitting aftermarket coolers. I suspect the Z840 will present the same challenges. Given that the Z Coolers do the job I would go for them just out of ease of installation. But if you wanted something more custom you could try aftermarket. The main issue in the CPU fan module which would not accommodate any cooler but the HP coolers. You could bypass or rework that system but it would get messy.
It would have been interesting to test with only one upgraded so you can compare old to new directly. The stock coolers are shockingly bad. But upgrading some parts on these machines is crazy expensive, so you are better off upgrading just the stuff that is cheaper, like upgrading to better CPUs.
That's a fair point. The stock coolers would really benefit from a machined flat contact surface. The manufacturing process has left some deep trenches on the mating surface which can only be a negative in their overall efficiency. The Z Coolers address that but at a cost.
In saying that, the HP Z840 is quite old now and generally the parts are quite cost effective. CPUs are cheaper now than they have ever been (~$60USD for a E5-2697 V4 as an example). The Z Coolers are still expensive because there is a limited supply of them. I found that using a high efficiency thermal paste is quite useful to drop your temperatures further. The best thermal paste I have tested was Thermal Grizzly Kryonaut - it's my go-to for the time being.
You did a visual comparison but didn't fire up to see the actual cooling props on both processors for an equal load?
Hi. In an ideal world there are many better tests that could be done to more accurately determine the thermal difference. My thermal comparison was focused on “real world mixed applications” and I selected a range of tasks that could stress the CPU with the Stock Coolers and then with the Z Coolers.
I used several software packages to collect data, but HWiNFO was the main data-logging software. My aim was to test: Cinebench R23, Kombustor CPU Burner, Geekbench 5, Borderlands 3, Forza Horizon 5 software packages with HWiNFO data-logging before (stock coolers - aged thermal paste) and after Z Coolers (new thermal paste). I used the same thermal paste - Arctic Silver 5, but ideally a longer run-in time would have been needed before recording (the difference might have been larger).
I chose to use Cinebench R23 because it is a gold standard CPU stress test that can equally load multi cores on both Xeon CPUs. I included Kombustor CPU Burner because that can place 100% load on all Cores on both Xeons (it only stressed one Xeon when I did my testing but looks like it has been updated now to stress both CPUs), which can help test thermal load. The longer the test is run the more effectively you’ll be able to determine the thermal difference between the cooler designs. I also included Geekbench 5 as a CPU benchmark that provides some indication of how these CPUs stack up relative to other CPUs.
For some gaming stress tests, I included Borderlands 3 because it has a build-in benchmark. This benchmark will not be CPU straining but reflects the typical strain from gaming. I also included Forza Horizon 5 gameplay, but this wasn’t particularly taxing on the CPUs. Together the gaming mostly demonstrates that the aged Xeons can handle modern titles in 4K without breaking a sweat.
Looking back, it would be beneficial to test multiple software platforms that can strain the CPUs evenly. If I had to redo the test I would include Prime95 and AIDA64 along with Cinebench R23 and Kombustor CPU Burner. But in reality, only one of these tests would be needed and it would be more useful to run the tests for longer - say 1 hour. But I can’t justify the power bill these CPUs would generate after 1 hour at 100% use. I would have liked to include some thermal imaging camera footage, but they aren’t a cheap item (I did consider it). I could take some infrared temperature sensor readings of the cooler blades and baseplate for some extra data.
Not a perfect test, but the results give a fair indication of how these CPU Coolers will benefit most modern tasks (from 100% Multi-Core Multi-CPU strain to Single Core strain). i.e. ~5'C / 9'F reduction.
You increase fan speed in BIOS setup to ****,,,,,,
It will more better than this
Vedio 👌🏻
Absolutely it would, but it's only needed if you really load these CPUs with work! This Cooler test was done without BIOS changes. So, more or less, the thermal effect of the Z Cooler over the Stock Cooler without any other changes. I'll see if I can sort out a new sensor cable for these Coolers to see what effect the HP Programmed Profile has on the Thermals. So far the Z coolers have settled well. Idle CPU temp. is ~37'C right now (use to be ~48'C on idle).
desperately trying to get these in india.. but unable to :(
Hi. I have you covered, this is where I got mine:
ebay.us/8y6JID
(Ebay affiliate link - I'll gain a small profit at no extra charge if you buy using this link).
They were priced ~$150-250 USD each a year or so ago, so the current pricing is really good. They really are worth it if you are fitting any powerful CPUs to your Z840. Which CPUs have you got at the moment?
I am busy with a review video for the Z840 which will cover which CPUs are best for the Z840 - the E5-2696 V4 is well priced at the moment (I hope to release the video in 2 weeks or so).
@@racerrrz Thanks for the reply :) . at present i have 2680 V4. Even used V4s are expensive in india. I hope there will be an imporovement with the Z coolers with my exisiting CPUS.. i have asked for one more help in your other video related to installing RTX 3080 on the HPZ840.
@@chirpingbluebird Great choice, the E5-2680 V4 is a solid performer. They are expensive for me locally also (I am in NZ), I just import them from Ebay or AliExpress. CPU prices have fallen heaps compared with a couple of years back. I priced up E5-2697A V4's for over $150 USD each in April 2022, but I picked one up for ~$65 USD in Oct. 2023 from Ebay. You should be fine with the E5-2680 V4, but if you wanted more cores there were other options also. I'll check for that comment.
@@racerrrz am happy with the CPU.. so ebay wont ship the Z cooler heat sink to india :( "Unfortunately, this seller will not ship this item to KA, India. Here is what you can do:
- Update your shipping address and try again.
- Find similar items from another seller."
@@chirpingbluebird That's really annoying! That is the only listing I can trace for the Z Cooler at the moment. P/N: 781908-001. It looks like parts for the Z840 are slowing down.
The only alternative for items like that is freight forwarding. Do you have a service in India that would allow for shipping your purchase to a local shipping warehouse who then process / receive the item and ship it to you? I have used these services for items that I just could not get otherwise. It ends up more expensive but at least you get the item.
Has anyone done a case swap with this particular motherboard
Good question. I am not aware of anyone that has published a case swap for the Z840 motherboard. But I do recall the Z800 motherboard finding its way into a custom case (Link andybrown.me.uk/2014/11/01/z800/ ) . Going off this reference, the Z800 motherboard mounts are custom / not ATX, meaning you would need to drill and tap your own motherboard stand-offs into a full tower to get it to fit. The Z840 motherboard would present similar challenges. It would make for an intense case swap, but with some custom dual CPU watercooling, and throw in a RTX 4090 and RGB, it sure would be a monstrosity!