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Z170M Pro4S - Failed BIOS Update from 1.40 to 2.40
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MaxaM View Drop Down
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Unfortunately pulling the CMOS battery for four hours did not fix my problem. I also tried booting with the flash drive in the on board usb (verified the file size), hit the restart button after two seconds and that did not solve my problem. All of this is while being connected to the integrated gpu through the hdmi which is hooked up to my benq monitor. I never get anything displayed on the monitor. I even tried these steps with everything removed from the motherboard except the CPU and fans. Nothing but the flash drive was plugged into any of the usb ports.

Any additional suggestions? There has got to be a way to get this thing running again!
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Xaltar View Drop Down
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At this point it sounds like a bad flash, it is rare and very unpleasant but does happen on occasion. Don't panic however because your motherboard uses a socketed BIOS chip which can be replaced. You can find the information you need here to get a replacement. The replacement can come with the BIOS version of your choice preflashed so you can avoid having to flash it again yourself.

In the past a bad flash meant a bricked motherboard, fortunately this is not the case with most ASRock boards today Wink
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I was really hoping that it wouldn't get to this point!  I just bought the MOBO last Friday, so instead of spending another 15 bucks for the chip I may just return it.  When I get the replacement I still feel like I should update the BIOS to 2.40.  Should I try to flash the new one with only the CPU installed on the MOBO?  What is absolutely required to have hooked up in order to get to the BIOS?  I would be extremely disappointed if it happens again!

 

One last question...

"I'm not sure if this is normal but every time I'd power on the computer the fans and lights go on for one second, everything shuts off for about 3 seconds, and then it would boot up."

Is this normal?  Could I of had a faulty MOBO all along?  It does this even with just the CPU plugged into the MOBO.


Thanks for the help, although I wish the end result was a bit different!
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Xaltar View Drop Down
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Good luck with the replacement Thumbs Up

When you update the BIOS do the following to make sure you are as safe as possible.

1. Clear CMOS via the same method I linked before once the system is built and before you update the BIOS. (an hour should be enough)
2. Download the instant flash version of the BIOS you want to update to. (again if you have already)
3. Flash the BIOS with only the CPU, cooler and RAM installed in the system.
4. Do not power down the system after the flash, use the reset switch if needed. If there is any kind of problem this will ensure your best chance of correcting it.
5. Use a different flash drive to the one used previously with the bad flash to rule out bad sectors/corruption.
6. Clear CMOS once the flash is complete and the system has posted at least once.

None of the above are rules but they should safeguard, at least to some extent, against another bad flash.

The 3 second power cycle issue was likely due to bad UEFI data, in all instances I have seen this a CMOS clear has resolved the issue. I guess flashing over the potentially bad data could have caused the bad flash. Many resellers test boards before they are shipped, the UEFI retains the information of the last RAM/CPU that was used and this can cause issues.
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MaxaM View Drop Down
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Alright, the store is very far away so I'm not happy about this at all.  I'll probably give this another shot later this weekend.

I saw the 3 second power cycle problem right out of the box, when I first built the computer.  Could it have something to do with my power supply?  I'm not feeling too confident that I've troubleshot everything before determining that it was truly a bad flash.  Maybe the MOBO defaults to the VGA and not the HDMI?  Any way I can probe around on the board to determine that the flash did indeed corrupt the BIOS chip?

Good thing I still have a couple weeks before I receive the Oculus Rift or I'd be realllllllllllly upset right now!
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Originally posted by MaxaM MaxaM wrote:

I really hope you guys have a couple suggestions to get my motherboard in working condition!  

SPECS:

i5-6600k
MSI GeForce GTX 970 Gaming 100ME,PCIE
GSkill NT Series 16GB (F4-2133C15D-16GNT)
Kingston SSDNow V300 Series 240GB,SATA
EVGA SuperNOVA 650 G1 80+ GOLD
Windows 10 64-bit

Hi, 

I've got a very similar setup.

Z170M Pro4S, i5 6600k, MSI 970 Gaming 4G.

I've experienced a few problems too but nothing close to what happened to you. I don't think the nvidia Drivers have anything to do with it (unless you're using a multi-Display setup). I haven't had any problems with the update.

If you don't find any solution, there's always the option to get a new BIOS chip.


Edited by Claf1109 - 12 Mar 2016 at 12:24pm
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Originally posted by MaxaM MaxaM wrote:

I was really hoping that it wouldn't get to this point!  I just bought the MOBO last Friday, so instead of spending another 15 bucks for the chip I may just return it.  When I get the replacement I still feel like I should update the BIOS to 2.40.  Should I try to flash the new one with only the CPU installed on the MOBO?  What is absolutely required to have hooked up in order to get to the BIOS?  I would be extremely disappointed if it happens again!

 

One last question...

"I'm not sure if this is normal but every time I'd power on the computer the fans and lights go on for one second, everything shuts off for about 3 seconds, and then it would boot up."

Is this normal?  Could I of had a faulty MOBO all along?  It does this even with just the CPU plugged into the MOBO.


Thanks for the help, although I wish the end result was a bit different!



If you just bought the board, I would return it. The situation with the PC starting, stopping and the starting again could be a board problem.

Updating the UEFI/BIOS on a brand new board that has never been used is just adding another possibility to wonder about if the PC has a problem.

When I begin using a new board, I install the bare minimum necessary, CPU, memory, and the OS drive. I start the PC for the first time, and go into the UEFI UI. I let everything run while I explore the options and settings, doing only the most basic changes I need. I'll restart the PC a few times from the UEFI, and when everything seems fine, then I install Windows.

After Windows is installed and I install drivers and basic software, and let the PC be in use for a day or two. Then I will install other drives, a video card, etc, since I am fairly sure everything is working. Later I will consider a UEFI update.

In your first post, you had Win 10 installed and were getting BSODs, so the PC booted Windows at least several times. The problem with your video card not always being recognized could have been caused by things other than a UEFI problem.

When you did the 2.40 UEFI update, was the video card in the PC?
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