Gigabyte (Z77X-UD5H) Boot Loop Issues

itsbehind · Jul 7, 2013

My bios eventually posts, but about 50% of the time it cycles through a boot loop 2 or 3 times before posting (attempts to boot to the bios, then the backup bios, back to the bios, etc). It happens most often when my computer has been shut down for a while (even if no new components are added or USB cables are rearranged, etc). Should I look into getting a new PSU or doing an RMA for the board?

Specs:
*Intel Core i7 2600k
*Gigabyte Z77X-UD5H Motherboard
*Ultra U12-40874 LSX 750-Watt PSU
*Nvidia GTX 570
*Corsair CML16GX3M2A1600C10 RAM
*3 SSDs and 1 HD

fkr · Jul 7, 2013

well first thing to do is unplug everything and see if that helps. get everything but one stick of ram out and see if it posts. then switch ram slots and repeat if something did not work.

smorizio · Jul 7, 2013

MaKe sure your mb has the newest bios on it. Ram vendors like to change there ram kits and it causes mb vendors to drop bios updates for the mb to have the newest CPU and ram code. In your bios turn on xmp profile after the bios update.

itsbehind · Jul 7, 2013

fkr :

I neglected to mention I had already done that. I've tried one stick in all slots and unplugged components. It still loops sometimes. Which is what's so weird to me: Occasionally it posts on the first try. Other times it will loop like 10 times before it finally posts normally.

fkr · Jul 7, 2013

bios is always a good idea and also does your motherboard give off any beeps while posting and such. do you have a speaker attached?

itsbehind · Jul 7, 2013

smorizio :

I'm on the latest stable version of the bios (f14). Would you recommend flashing to the latest beta bios to fix this sort of issue? I didn't want to mess with it originally because it is a beta update after all.

smorizio · Jul 7, 2013

Use CPU z read your ram. There two ram voltages for these kits a 1.35v and 1.5v. Make sure both dimms ate the same amd are 1.5v dimms. Also look under the spd info and see if your mb reading the ram spd info right. The last is look under the mb qal list for ram, if your dimm are not there see if the ram vendor will swap your ram for ram that on there qal list.

fkr · Jul 7, 2013

just to ask do you have any other components so that you can test things out.

itsbehind · Jul 7, 2013

smorizio :

They are both 1.5v.

itsbehind · Jul 7, 2013

fkr :

Not readily available, but I can borrow some from a friend sometime this week if it comes to that.

Tradesman1 · Jul 7, 2013

With Corsair CL10 sticks, may want to raise the DRAM voltage to 1.55 and the CPUVTT (MC (memory controller)) voltage upu about + 0.06 from what it's currently at...that should (hopefully) clear things up

itsbehind · Jul 7, 2013

Tradesman1 :

It seems to be working with this. But sometimes it just randomly works, so it's hard to say. I will post again if the loop returns...

Tradesman1 · Jul 7, 2013

What's CPU/NB at now? AMD has a weak MC so may want to take it higher, let me know

itsbehind · Sep 29, 2013

The boot loop issues have persisted. I guess it happens a little less frequently than before, but it's still an annoyance. In an attempt to fix it I've upgraded to the latest beta bios (F15q). It is no better and no worse than it was before the flashing. Maybe this is related somehow, but I've NEVER been able to boot into the backup bios. As always, any feedback/ideas are appreciated. Thanks!

Tradesman1 · Sep 29, 2013

Try taking CPU/NB up another + 0.05

itsbehind · Sep 29, 2013

Tradesman1 :

I'm not seeing an option to adjust CPU/NB for this particular MB. Is there another name for it? And, in case it's relevant, my processor is Intel not AMD.

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Gigabyte (Z77X-UD5H) Boot Loop Issues

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