Computer not booting

shenkeritu15a202de

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Jul 22, 2021
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I recently upgraded my computer, and it is not turning on (i.e. fans not spinning, no lights etc). The power is connected, and when I click the flash bios an LED lights up but the power button fails to do anything. I have tried to flash the bios, but it did not work (the red light stayed on continuously for about 30 minutes, and I turned off the power supply, unplugged the usb and turned the PSU back on but nothing happened upon pressing the power button.). When the flash bios button is pressed, the motherboard lights up and the CPU fan starts spinning but then switches off after a few seconds. During this time, the error light for the CPU is on.

The specs are: https://uk.pcpartpicker.com/list/g6nZMv, except the cpu cooler is not used because I used the stock one.
The PSU is around 5 years old and the GPU is 3 years old, but everything else is brand new.
 

citay

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The EZ Debug LED showing "CPU" can be a bit misleading sometimes. First thing i would try is a different PSU, and if that doesn't work, a different graphics card.

Just today there was a somewhat similar problem solved by using a different graphics card, although my first guess was the PSU, because he had a worse EVGA PSU.

With any type of refusal to turn on properly, there's always the chance it's the PSU, especially with an older unit. And it's one of the easier things to test. Maybe you can borrow one somewhere, and a graphics card, for testing. If it wasn't that, at least you'll have that ruled out.
 

chriskehrin151f02d5

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Jul 23, 2021
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Just got a B550M Mortar and Ryzen 5 5600x (and some ballistix 3600 memory). No boot, just shows CPU indicator. Flashback not working - lights up, reads the usb stick, then stops with red indicator on but no action. Tried 5 different usb sticks, all same.
Took your advice, bought a new power supply (seemed most likely), no change. Put in older video card, no change, just cpu light.

I'm losing it. Any advice would be greatly appreciated.
 

fatedust

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Just got a B550M Mortar and Ryzen 5 5600x (and some ballistix 3600 memory). No boot, just shows CPU indicator. Flashback not working - lights up, reads the usb stick, then stops with red indicator on but no action. Tried 5 different usb sticks, all same.
Took your advice, bought a new power supply (seemed most likely), no change. Put in older video card, no change, just cpu light.

I'm losing it. Any advice would be greatly appreciated.
BIOS should be updated to 7C94v14 or later to support your CPU.
Make sure your USB disk is formatted to FAT32, MBR partition, single partition, and BIOS file ex: E7C94AMS.140 is renamed to MSI.ROM and put in the root of USB disk.
 

citay

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Yeah, you're right, there's a good possibility that the Flash BIOS Button method failed because something wasn't right with the USB stick, like formatting / file name, and not because of a general problem with the system. Or sometimes you have to try different USB sticks, the board doesn't like all of them for this method. That was an oversight of me, my bad.

People had the best success using https://rufus.ie/en/ to format it to FAT32, and as mentioned, the BIOS filename has to MSI.ROM, otherwise nothing happens. I would update to the latest BIOS that's available. Then, if the update is successful, it might POST no problem. Luckily, a good PSU is never a bad investment, it's the foundation of your system. Which one did you get?
 

chriskehrin151f02d5

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THANK YOU ALL SO MUCH!!! Got it up and running, somehow despite watching 2 videos I missed that the bios file needed to renamed to MSI.ROM. That did the trick! I feel like an idiot though...

Funny enough, after getting it running and checking everything out, I shut down to put the side panels back on. Wouldn't restart after that. After a [***CENSORED***] ton of troubleshooting and testing different things, ended up trying my old power supply and voila, it worked again. Brand new EVGA power supply crapped out after 5 minutes. sigh (no signs of any crimped or cut cables or anything like that, so I have no idea)

If anyone has any more advice, have a couple questions:
1. Are any of the MSI Center apps worth installing? (Gaming Rig) Don't want to install a bunch of crap I will never use.
2. From the MSI drivers page, I did not install the RAID driver (not running RAID) or the VGA driver (this was an upgrade, already have AMD Radeon software and drivers installed). If there is any usefulness to either of these, please let me know.

Thanks all so much for the speedy help, I really appreciate it!
 

citay

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Good job. Well, EVGA offers all kinds of PSU models, from the very good to the very bad. I usually recommend "be quiet!" or Seasonic PSUs, see here for some models. They're solid.

About your questions,
1) No, don't install MSI Center, it's no good for any of what it does. Settings - better done in the BIOS. Hardware monitoring - better done via HWinfo64 for example.
2) You only need the AMD Chipset Drivers, the rest isn't necessary.
 
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