My Motherboard is bricked, likely bad BIOS chip, can anyone weigh in?

JellinWellen

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Sep 10, 2015
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My motherboard (Z170 Pro Gaming) had a very minor issue where the BIOS would freeze when changing some Qfan settings while inside the BIOS.

When I contacted ASUS they recommended I flash it to the newest firmware, and were even nice enough to walk me through the proper steps. Unfortunately after flashing, the computer would no longer post. The computer would turn on and fans would run at pretty much full speed, and no power would go to my keyboard, mouse, monitor, black screen, etc.

If I attempted to boot a flash drive containing an older BIOS revision it would say the file was invalid. The BIOS WOULD come back up, if I cleared the CMOS. And it said I had the "newest" version. Unfortunately I'm pretty sure whatever version I did have was incredibly corrupted, since I couldn't post after exiting the BIOS.

The entire time I was on the phone with ASUS and they said to just send it in for a free RMA repair at that point. I finally got it back today, and it still isn't posting. They didn't even replace the freaking BIOS chip.

Here's what happens with the "repaired" board:

Hit power button>boots to American Megatrends screen>Hit f1 for setup>go into the BIOS>Make sure my drives and boot order is correct>save and exit>computer won't boot to anything, just sits there with no signal to the peripherals or monitor

They're sending me an actual new board ASAP, but is there anything else I could've tried? I've got everything plugged in the exact same way as I did before. Figured I'd try something before I take it all apart...again.
 
G

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Have you tried ASUS EZ Flash 3? You can update from the BIOS through the internet, insuring no corruption. Then, from the bios, choose the drive to boot. Not the boot order, but the drive itself. I've had a weird problem with the boot order on ASUS, but when booting from drive directly worked. Also, try disconnecting all other drives.

That's pretty much a small checklist of things you could try.
 

JellinWellen

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Sep 10, 2015
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I'll give that a shot. Before they "repaired" the board when I tried that it would tell me the BIOS files I was trying to use through the EZ-3 utility weren't valid. Maybe it'll accept them now, I'll give a try tomorrow morning.
 
G

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Try updating from the internet, there is that option. If the board said the BIOS file wasn't valid, it very likely wasn't. ASUS doesn't a checksum on files first and validates that it's not corrupted. Using a USB key is less reliable, because sometimes you get a flipped bit.
 

JellinWellen

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Sep 10, 2015
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It would do the same when updating via internet, it would refuse to post afterwards. I'll still give it a shot again though
 

JellinWellen

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Well I've tried to re-flash the board via internet, as well as the utility...again. I still can't boot or do anything after exiting the bios. And it will ONLY accept the BIOS files as valid if I stick a flash drive in while the PC is booting that contains a valid bios file. The EZ Flash utility simply does not recognize any of the ASUS bios files as valid.

I've replaced this motherboard with itself in the past and there were no issues, straight plug-n-play. I'm guessing the BIOS chip is just fubar?