MSI Z270-A Pro Motherboard Will Not Boot. Can We Fix It?
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- Опубликовано: 19 авг 2024
- A friend was given a faulty mining rig, consisting of six graphics cards and a Z270-A Pro motherboard. He wants to use parts from the mining rig to build himself a PC. But when he put it together it would not work so he asked me to take a look
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Thank you
Richard
*PART 2 IS HERE GUYS*
ruclips.net/video/YQShabU582g/видео.html
Just went back because people are saying the resistor came off and with the benefit of hindsight you can see it vanish ! right let's go see part 2....cheers.
I can see where you lifted a tiny resistor. The third pin over had a resistor right in front @ 19:43 and it's not there @24:09. Those two pads also had shiny solder on them.
With LGA sockets often bends on the pins will prevent booting. Checking the socket closely is always a good idea. With the Vcore being down on this board I'd stay in that area. As far as I know TPU is an ASUS thing it's related to overclocking, it auto overclocks on ASUS boards.
LGA socket is good, I showed it in the video
Vcore was only down after I reflashed the BIOS, I showed this in the video
Clearing CMOS changed the behaviour of the fault
Programming the BIOS again changed the behaviour of the fault back to how it was before I cleared CMOS
A hard fault such as Shortted mosfet etc would not behave in this manner
I am sure this is some corrupted firmware type issue, something like TPU ROM which can cause this sort of fault
There was a resistor/cap close to pin 3 of the bios chip before you removed the bios...
OK, thanks. I'll check that out
Yes, present at 10:22, on pins 3&4 at 20:40, on pins 5&6 at 35.25. The wonders of the big blob desoldering technique, ho, ho.
@@ralphj4012 no comment about the desoldering technique... LOL
At 20:09 it looks like there is a second component close to pin 1 that is not present at 34:42.
@@torkies2877 actualy there is not component, if you look closely its probably screen illusion
Had an experience today and would highly recommend all technician's wear safety glasses. High side mosfet was shorted (literally a wire) PSU overload would trigger until it didn't. 12V through the coil across a 4Volt solid state capacitor. It exploded like a cap gun. Still can't find the aluminium can.
You should do more of these pc repairs people love them
Always nice to watch you and learn some stuff, usually i am making mistakes because lack of practise. And You don't have heavy english accent which makes your talk good and understandable. Thanks for sharing your knowledge with us..
as other suggested one component is missing from the bios, it was close to pin 3, i supoose it was resistor (not sure), look at your footage again, you accedentaly desoldered it when adding leaded solder ruclips.net/video/1SPlDXkgxS8/видео.html
Yeah it has been mentioned. Thanks for the tip 🙂
When you have LED with CPU problem, you should always check the Socket with socket tester, so you know if the pins are OK.
Richard try blowing out (with compressed air) & then washing the motherboard because the dirt/dust could be conductive/capacitive.
SLI on Radeon cards is called crossfire. As long as there are two PCIE slots you can multi them .. they dont need a bridge like Nvidia any more. Results vary though with multi gpu. Micro stutter often reported.
Not really worth it though, because hardly any modern games support SLI/crossfire
More thrilling than a detective story 👌
the problem comes from the start capacitor, try to heat the part next to the large 23-pin connector and start.
great start lets go watch part 2 :)
Any repairs of Panasonic DECT phone's LCD display?
Heya, that's a pretty nice motherboard have a simmeler 1 msi H270 PC MATE this board I'm gone use for my video capeuring and this is an working board I'm only not sure how different it is from yours
Excelente video 👍 gracias ingeniero lo saludo desde PERÚ 🇵🇪.
still seems partly like a bios issue. program back the original file and see if vcore comes available again
Better always test with single ram module. Never with 2 or more modules. Also check the ram on every slot. Cpu connections to socket and socket conns to mobo go to separate ram slots. So if there is any problem in that route some ram slots will work while others won't. If a ram slot connection to cpu is faulty the mobo won't start with the good one.
The CPU is not starting, it never gets as far as testing the RAM
That is true. I just noticed that you often check with 2 ram modules instead of 1, and that you don' check all the slots. Also cleaning the ram pins sometimes helps. And also have on hand different ram to test with because often ram /mobo happens to not like each other just like that...
First off Richard, it looks like there's multiple issues with this board. The bad ram was one, the BIOS possibly another, the resistor that every body has mentioned sand I'm thinking maybe the ram slot could be an issue too, so I think it's important you stick to eliminating one thing at a time. MSI boards have a bios flash procedure that allows you to flash the bios via a usb. Would recommend this instead of desoldering in future. Secondly if I've learnt anything from Sorin, is that the Super I/O chip is the one in charge of starting up all the power supplies including vcore do if there is no vcore that'll be because the SIO has spotted something wrong. You could also check to see if there is 3.3v on pin 8 of the bios chip to see if it is getting power to turn on. Thirdly the celeron supports DDR4 2133, DDR3L 1333/1600 @ 1.35V. Maybe the ram modules do work but are not supported by the cpu.
Interesting - How do I flash the BIOS via USB if the motherboard will not power up?
A lot of MSI boards (and others manufacturers too) have a bios flashback button on the back of the board near the back i/o ports that allows you to do it even without a cpu installed. You just need to give power to the board via the 8 pin and atx connectors. Looks like you just missed out with this particular board but the Z270 XPOWER GAMING TITANIUM, Z270A GAMING M5, Z270 GAMING M6 AC, Z270 GAMING M7 all have it as well as others.
I'm assuming there is some kind of small microcontroller with built in ram that takes over the task without needing any thing externally apart from power.
Failing that reveltronics do a programmer that allows you to programme eeproms in place. Expensive at £100 but might be worth it for expensive boards where you don't want to risk damaging the bios.
u should try and reprogram the bios with the same file you read in the beginning.
As far as I know only Asus uses the TPU. The chips are mostly clearly marked as TPU and then there is a rom chip close to it like a bios.
RX570 can indeed use crossfire, long gone are the days of needing a "bridge connector" :)
Thanks
Hi Richard
Ask Sorin, he knows about programing the start up chip, and he knows someone in Rumania who has the software and the knowledge..
oh, you ripped that resistor off, from the board.🙃
Just rewind video to 20:02 and check the bios pin nr 3 (start counting from down left). Under that pin there is your resistor, which then you took accidentally with solderiron . The proof is at 20:35. Then at the end 35:44, we all can see, the empty space under pin3. Greetings from Poland
Yes it has been mentioned 😉
20:19 Resistor is under the bios chip
20:36 Bye resistor 👋
Great video
Think these days the memory controller is in the CPU although you changed the CPU so that eliminates that. What generation are these CPUs that you are using? Assume that when you flashed it was with the most current version of the BIOS for the mb.
That miner died in the tunnels.
I hope you have some more good ddr4 ram for the computer you are building. Swapping parts from one machine to another, can be a good diagnostic tool but can also destroy the parts you are swapping and can make you go in circles. When static was huge problem swapping components fried a lot of components. Never use an important machine you need for testing components as you could destroy it.
How would you get around that Tony? It's not possible to eliminate things like RAM without swapping for known good ones. I did check the Vram voltage, it looks OK
@@LearnElectronicsRepair Swap between machines that are not critical.
@@tonysheerness2427 Normally I keep some spare RAM of all types.,, I just happened to use the two strips of DDR4 that I had on the new machine, so I need to buy or find some more. That PC is not in service yet as I am waiting for a new HDMI capture device but yeah I do agree, don't take parts out of anything critical. The good news is the RAM still works, I got round to installing an OS on it today
With my LGA 775, It causes by CPU Socket itself, so I'm just putting fluke around the CPU socket and hot gun the hell out of it.
Quite obvious core did not power up.U should check the power sequence of this board first ...
Quite Obvious core did power up initially, i measured it
That golden time never come When Intel made Motherboard, , long lasting. Now this scraps !
Use a hammer. Everything does what it is told when a hammer is involved.
Interesting tailored ads at 10:16 😂
Hehehe
Yes I also got that aliexpress ad on my browser the other day. It looks like an anatomically correct baby female doll, but the pose of the mouth suggests a sex toy . Very disturbing in my opinion!