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Gigabyte P67/Z68 boot cycling problem - Page 25

post #241 of 811
ASUS and Gigabyte both make great boards without a doubt...and, as with all manufacturers, they will have a few lemons as well. If you happen to receive one, just exchange it or RMA it, no big deal.
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post #242 of 811
here is what I think the problem was, you guys kept getting boards that has virgin BIOSes, if you noticed that release recently for fix with teh restart button, BIOSes like that were released for teh P67A boards and then later on P67A B3 boards, and we will see them very soon for the Z68. new tech always means new BIOS code from Intel which means manufacturers have to start over again. i guess I didn't read your posts correctly, becuase I thought you bought them all at once.

I am glad you are happy and it worked out in the end .
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post #243 of 811
So... while you all have been bickering I've been doing some testing. I'm now absolutely certain that in my case, overclocking causes BIOS corruption. Mark my words: It IS widespread but being fixed in BIOS updates. F7 fixes it but introduces a new bug in the process.

Some things I've found:
  • F5/F6 can usually handle the corruption to a certain extent. However, it's possible a flash can become so corrupt it needs a completely fresh flash. (e.g. if you've had several BSOD's)
  • F7d should be avoided. A single BSOD can cause the BIOS to become completely unstable and result in boot loops on a constant basis.
  • Boot loops can be caused by other factors such as incompatible memory, the reset switch, or a faulty board. If you use certified memory, don't overclock, and don't use the reset switch and yet you still get the boot loop it's time to RMA the board. It's that simple.
  • The latest F7 BIOS fixes the BIOS corruption caused by overclock instability to a certain extent. With F7 when you experience a BSOD it will go into a 3-cycle boot loop and then successfully recover itself. This boot loop SHOULD NOT be confused with the proper recovery method seen on other Gigabyte boards and it SHOULD NOT be doing this. (You'll just have to trust me on this) However, it appears Gigabyte has incorporated a rudimentary fix in F7 so it's highly recommended you flash to this BIOS ASAP. It does have a bug though: during the 3-cycle boot loop and recovery period your clock will end up being one minute behind.

Anyhow, sorry for the interruption. You all can continue bickering now...
Edited by sgr215 - 6/30/11 at 7:46pm
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post #244 of 811
no sgr215 i have been testing too and i am starting to agree with you. many of these boot loops that are out of nowhere for no reason are probably being caused by corruption.

Here is something that will better support your theory:
Back in teh early P67 days the backup BIOS flash woudl always trigger, it was teh main complaint, that the backup woudl flash over for really odd reasons, one bad OC could cause it.

Anyways the reason for the backup flashing the main BIOS automatically is becuase GIGABYTE set the threshold level of corruption detection very low, so at any glance of corruption the BIOS was reflashed as if the main BIOS had gone bad. So people complained, and I guess they now set that same threshold very high, and are working on finding teh sweet spot.

IDk just a thought for you, but it does help support your theory.
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post #245 of 811
Sin0822,

That's exactly it. Given Gigabyte's history with this issue in the past, and the fact you can pretty much see it being fixed if you flash to each Bios Gigabyte has released to date, it's pretty much confirmed in my eyes at this point. (For Z68X-UD4 users try causing a BSOD on F6, F7a, F7d and F7 and you'll see exactly what I mean.) Essentially, Gigabyte appears to be at the "we fixed it but in a very rudimentary way" phase. Next up with F8 we'll hopefully be at the "we fixed it completely!" phase.
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post #246 of 811
haha yea they will fix it up no doubt, the issue is that I dont think the Intel Microcode is that good, check Asus boot loop and they have teh same type of issues.
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post #247 of 811
Quote:
Originally Posted by Sin0822 View Post
haha yea they will fix it up no doubt, the issue is that I dont think the Intel Microcode is that good, check Asus boot loop and they have teh same type of issues.
Forgive me for not looking through all 25 pages, but is there any solution for this for the B3 UD3P yet?

No issues with B2, but every time I start my computer in the morning it will reboot about 3-6 times depending on luck until it will successfully boot into Windows. I'm running the latest F4 bios, and I'm going crazy. I don't even want to overclock anymore when I have to wait 5 minutes to start a 12hr Prime95 stable system.
post #248 of 811
Quote:
Originally Posted by cory1234 View Post
Forgive me for not looking through all 25 pages, but is there any solution for this for the B3 UD3P yet?

No issues with B2, but every time I start my computer in the morning it will reboot about 3-6 times depending on luck until it will successfully boot into Windows. I'm running the latest F4 bios, and I'm going crazy. I don't even want to overclock anymore when I have to wait 5 minutes to start a 12hr Prime95 stable system.
F5 has been released for your board. See: here.

Judging by the F7 release on my board, I'll be surprised to hear it doesn't fix it for you (to an extent). Regardless, let us know.
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post #249 of 811
I recently built my new Z68 Sandy Bridge PC and everything was fine, it booted up I was able to install Windows and all drivers however I am getting a problem where it goes into a boot loop when it is cold booting up. It does not POST, it makes it to the 'checking memory' stage then keeps rebooting just like everyone else here.

The first time I turn it on in the morning or afternoon it seems to load the backup BIOS which is version F5. The PC will continue to boot loop indefinetly until I unplug it from the wall. I have to wait about 5 seconds before reconnecting then turn it on and then it boots up fine using the latest F7 BIOS.

Current specs:
Intel Core i7 2600K
Gigabyte GA-Z68X-UD4-B3
G.Skill Ripjaws X F3-12800CL9Q-16GBXL (4x4GB) DDR3
OCZ Agility 3 60GB SSD
Western Digital Caviar Black 2TB WD2002FAEX
Gigabyte GeForce GTX 580 Super Overclock
Corsair AX850 Gold Power Supply

Initially when I first installed all of the components everything startup up fine. I first put the BIOS into 'Load Failsafe Defaults' so it can find everything, rebooted manually set the RAM to XMP Profile1 and checked timings all ok, reboot fine. Installed Windows all good.

However every time I turn the PC off (ie shut down) then turn it back on again it goes into the boot loop. If I restart the PC (within windows restart) it boots up fine.

I have tried to disable Legacy USB storage and even disconnected my case reset switch as per that thread to no avail.

I know within Windows everything works perfectly as I have done Prime95 stress testing and also been able to play Battlefield Bad Company with no crashing so I know its not a cooling problem.

Are people here still having the same issue where its doing the boot loop?
post #250 of 811
its become more and more uncommon with newer BIOSes, the Z68 boards have the most immature BIOSes and it might take some time. I think the bootloops become a combo of things, as there isn't just one solution.

BTW you want to load optimized defaults not fail-safe.

can i ask you what you have your RAM set at?
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