P67-UD7 - no post after BIOS tweak

Kubase

Kubase

Kubase

Associate
Joined
7 Mar 2011
Posts
31
Hi, I hope someone can help.

I have my setup (see sig) running completely stable at 4.6 and 1.334 Vcore. Temps are great. However, if I do anything in the BIOS, or even just enter setup and then exit without saving, the computer will not post. It gets stuck in a restart cycle and never reaches the post screen. To fix the issue I have to remove a stick of RAM. The computer will then post and the BIOS will tell me that the pc couldn't boot due to an overclock and that certain BIOS settings have been changed to default. I put the stick of RAM back in, boot, restart and redo my overclock, and everything will be hunky-dory until I enter the BIOS again.

Any ideas?
 
This is a common problem with, what seems, some Gigabyte and Asus sandybridge boards.

Someone suggested powering down, removing the battery, wait, reinsert battery, re-setup BIOS. I have tried this and it's fine so far.

I think it's to do with reliability. When the bios is changed in anyway the next reboot will perform a gingerly test, to ensure that the device will actually boot. Possibly due to over cautiousness the motherboard reverts back to a safe mode.

Hopefully future BIOS updates will fix this.
 
Ah, thanks. At least it's a known issue. In fact, I've just built a SFF Sandy Bridge machine for a friend and had the same issue.

I guess I'll just wait for a BIOS update.
 
I suspect it is a BIOS issue. I spend quite a fair amount of time in the bios and do not have to take my ram out when I reboot and doing stuff there in. Could you post what BIOS version you are using. And does the problem as described occur when you do save you changes?
 
I guess you are asking the OP there. Hope you don't mind but here's what just happened with my UD3.

Working fine. I reboot, go in to the BIOS and make ONE change:

MB MIT -> Advanced Memory Settings -> Performance Enhance

changed from Turbo to Standard

This is sort of a downgrade right? The O/C hasn't changed, the timings are now slacker I guess.

F10 then you hear it fail.

Reboots to a full halt.
Does that sluggish start where fans attempt to spin up but bail out. Disks / fans makes a combined sound like old arcade game: Gorf or Battlezone, I vaguely remember that sound :D
Drops back to 3.4Ghz and 1600Mhz with warning that O/C failed.

Del to go back into the BIOS and the ram changes back to 2133. I don't need to change anything else apart from putting the clock ratio back to 48, performance enhance back to Turbo. That's it. Everything else is remembered.

F10 and away it goes 4.8Ghz 2133Mhz. No problem.
 
Yeah - that happened to me too with the first couple of BIOS's that were released. Basically the original failed overclock detect settings were to sensitive, and what resulted was the BIOS auto correcting when there was nothing to correct. That issue should have been resolved with the latest few BIOS released.
 
Hmm. Same thing just happened.

Working fine 4.8/2133. Change Performance Enhance Turbo to Standard and it Fails.

I can not see any visual change in the BIOS with F3b. The only change is that cpu-z is now reporting BCLK as 100.3 whereas previously it was 99.8. Bonus.
 
To prove a point that the BIOS is buggy. I just chose that at random, to show that making a change (even a downgrade change) forces the BIOS to go into stability check mode on next reboot.
 
You must log in or register to reply here.
Back
Top Bottom