Motherboard Boot Loop Issue through 4 RMAs- help desperately needed

crabsmack

Junior Member
Nov 26, 2011
8
0
66
Alright guys, I’m looking for some computer build troubleshooting. This was originally my first build, though at this point I’m on my 3rd motherboard and 4th RMA and I’m really at the point of desperation here. I refuse to let one bad experience taint my opinion of CPU building, but this has been a wholly draining experience so far and I’m here for help.


I think it’s best if I just provide a timeline.

December 2011, I first began my CPU build, followed the Newegg guide, etc. Got to the external boot test- and nothing. A click would sound (which I identified to be my PSU turning on), the fans would run for a few seconds, and it would click off again. It would repeat this cycle endlessly as long as it had power. Nothing would ever appear on the screen. Seeing as this was my first build, I assumed I had done something wrong and spent a great deal of time and sweat and tears reconfiguring it and trying to get it to work. Eventually I requested an RMA of my motherboard from Newegg, as querying online pointed to that as the source of the problem, and apparently many had had this “boot loop” issue with this particular motherboard.

Replacement arrived, it now being about late December. Seeing as I was not charged, I am led to believe Newegg determined my original mobo to be defective. Hooked everything up, and it finally worked and there was much rejoicing. This motherboard worked just fine for about four months, no issues, and I believed the problem was solved. Early April, when I turned it on one day, it was yet again boot looping. The symptoms seemed to be largely identical as last time, though I cannot recall whether or not it ever reached the BIOS screen. This is when I embarked on my largest troubleshooting venture, borrowing parts from friends to swap out and trying everything I could possibly find on the internet. In the end, everything pointed to the mobo being the problem once more, and I sent it in for a second RMA- Newegg’s warranty being expired, I went through Gigabyte, and my CPU was out of commission for about two weeks.

Third motherboard arrives late April. Checking the serial code, I find it’s the same board- a repair, not a replacement. Straight from Gigabyte I was told that my “BIOS was corrupted”. Regardless, it works just fine, and I carry on using my computer. Early July, it dies once more. Boot loop, though it does reach BIOS. I seek the counsel of a computer-literate friend, who deduces that the Windows installation is corrupt. C drive is cleared, Windows is reinstalled, and the computer functions once more. I am amazed, as I was absolutely certain from my previous experiences that the mobo was the problem. Lo and behold, late July it dies again. In the end, I am forced into RMAing through Gigabyte again, waiting another 2 weeks.​

This brings us to my present motherboard, which arrived Aug 1 and functioned for a stunning 10 days before succumbing to the boot loop. The first boot is always very short, but the second and on reach the BIOS screen. However, if previous experience holds true, the longer I let it boot the shorter the boots will get to the point where it no longer even reaches BIOS. As such, right now it’s just sitting unplugging while I search for a solution.

The prospect of waiting another two weeks for a 5th RMA to die on me isn’t appealing. More importantly, I was under the impression that this boot loop issue is a rare one- the odds of the three separate motherboards I’ve received all suffering from the exact same issue seem miniscule. Additionally, every single motherboard bar the first has functioned for some time before dying, which complicates the issue- no part is just plainly nonfunctional, it seems to be degenerative. And each successive motherboard has lasted shorter than the last.

I have absolutely no idea what to do. Could another defective part in my build be causing all of these issues, and the motherboards were fine? If so, what part could it be (I’ve ruled several out with swaps and tests), and why would both Newegg and Gigabyte acknowledge the boards I RMA’d were defective? Or is it really just that I have absolutely terrible luck? Would purchasing a new, different motherboard even solve the issue?

If I have to shell out $100+ for a new part, so be it, as long as it fixes the issue. It’s irritating, and money that could have gone elsewhere, but at this point if it solves my issues it’s worth it. The last thing I want to do, however, is buy a new motherboard only to find out that that wasn’t even the problem.

I’m pretty much at the end of the line here, as nothing I do seems to fix anything and my numerous RMAs have only led to more headaches for me. So I’ve once again embarked on a vision quest to the four corners of the internet, to find once and for all what is causing these problems. Anything you can provide is immensely, immensely appreciated. I’d love to just have this work for once.


If you need any additional details, or even pictures, I will gladly provide them. Thank you very much for your time and assistance.


THINGS TRIED
swapped PSU
swapped RAM and configuration
checked CPU pins
cleared CMOS
checked all cabling
unplugged reset switch
drained power overnight

BUILD
i5 2500k
Gigabyte GA-Z68XP-UD3
G.SKILL Sniper 2x4GB 240-pin DDR3 RAM
Seasonic X750 Gold PSU
Gigabyte Radeon HD 6850
Corsair Force Series 3 SSD (with Windows 7 installation)
WD Caviar Green 2TB HDD
Corsair CAFA70 heatsink
ASUS 24X DVD burner


I apologize for the wall of text, I tried to format it as presentably as possible.
 
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AnonymouseUser

Diamond Member
May 14, 2003
9,943
107
106
Personally, I wouldn't waste any more time on that motherboard. Get another brand, make sure it's a reliable board, and go with it. Time is money, and you've wasted more time than it's worth. RMA that board one last time and sell it for cheap or give it away.
 

Bubbaleone

Golden Member
Nov 20, 2011
1,803
4
76
Have you tried disconnecting power and data from the SSD to see if the mobo will complete a normal post and BIOS boot screen, before telling you there's no boot device? If it will post to the BIOS like that, then your SSD is the problem.
 

crabsmack

Junior Member
Nov 26, 2011
8
0
66
Personally, I wouldn't waste any more time on that motherboard. Get another brand, make sure it's a reliable board, and go with it. Time is money, and you've wasted more time than it's worth. RMA that board one last time and sell it for cheap or give it away.

Oh, believe me, I feel the same and that's what I'm planning on doing. I just want to absolutely sure that there's no other possible component that is causing all these issues- I'd feel very stupid if I bought a new motherboard and it died too.

Have you tried disconnecting power and data from the SSD to see if the mobo will complete a normal post and BIOS boot screen, before telling you there's no boot device? If it will post to the BIOS like that, then your SSD is the problem.

Yeah, I've tried booting with nothing but the absolute essentials attached. Nothing changes.

It's also worth noting that only about 1-in-3 boots actually reach BIOS- the rest of the time it shuts down after not more than 1 or 2 seconds. Hopefully this rules out some components, as they wouldn't even have had a chance to affect anything by then.

Basically, I have only two theories which can hold any ground:

1) Gigabyte has reamed me, and I got 3 defective motherboards.

2) Some other component (PSU seems the only possible one) is damaging my motherboards over time.

Nothing else matches all of my various failures. And even the PSU seems odd- as I stated, in one case my friend was able to reinstall Windows, which caused the computer to function again for a week or two. If the motherboard was fried, this seems like it wouldn't happen.
 

Steltek

Diamond Member
Mar 29, 2001
3,310
1,049
136
Probably a stupid question, but did you happen to check the serial number of your motherboard before and after you sent it in to Gigabyte? I'm wondering if they just sent your original board back to you without even looking at it. Wouldn't be the first time I've heard of them doing that sort of thing.
 

Bubbaleone

Golden Member
Nov 20, 2011
1,803
4
76
Oh, believe me, I feel the same and that's what I'm planning on doing. I just want to absolutely sure that there's no other possible component that is causing all these issues- I'd feel very stupid if I bought a new motherboard and it died too.

After what you've been through there's no reason to feel stupid about getting rid of an albatross. I'll go +1 with AnonymouseUser, and further suggest looking at LGA 1155 mobos with the Z77 chipset instead of the earlier Z68.
 

crabsmack

Junior Member
Nov 26, 2011
8
0
66
Probably a stupid question, but did you happen to check the serial number of your motherboard before and after you sent it in to Gigabyte? I'm wondering if they just sent your original board back to you without even looking at it. Wouldn't be the first time I've heard of them doing that sort of thing.

Yeah, I did. My first RMA with them, they sent back the same one. The second time it was a different motherboard.

However, it's worth noting that the "repaired" mobo did function again for some time. So they definitely did something, they didn't just send it back.

After what you've been through there's no reason to feel stupid about getting rid of an albatross. I'll go +1 with AnonymouseUser, and further suggest looking at LGA 1155 mobos with the Z77 chipset instead of the earlier Z68.

I'm looking at the P8Z77-V LK. Sound good for my build? Any suggestions?
 
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KGB

Diamond Member
May 11, 2000
3,042
0
0
Possibly a defective power switch on your case.

When you power ON, the switch provides a momentary contact and the MB powers up. If, however, your switch contacts are sticking CLOSED... the MB will see this as a signal to shut OFF.

Simple test: without changing anything else, unplug the power switch from the MB header and start the system by momentarily shorting the pins (a screwdriver usually works fine).

Please report back.
 

crabsmack

Junior Member
Nov 26, 2011
8
0
66
You oughta' check out the Motherboards forum and ask those guys..:thumbsup:

Thanks, will do.


Possibly a defective power switch on your case.

When you power ON, the switch provides a momentary contact and the MB powers up. If, however, your switch contacts are sticking CLOSED... the MB will see this as a signal to shut OFF.

Simple test: without changing anything else, unplug the power switch from the MB header and start the system by momentarily shorting the pins (a screwdriver usually works fine).

Please report back.

Just tried it- continued to boot loop, unfortunately.
 

lakedude

Platinum Member
Mar 14, 2009
2,778
528
126
I suspect a hardware problem, but it won't hurt to verify some things.

Unplug every thing you don't need, video card, hard drive/ssd and all but one stick of RAM.

Download and burn the Ultimate Boot CD and maybe a copy of Puppy Linux as well.

Try to run Puppy Linux or Ultimate Boot off the live CD. Same issues?

Use UB to stress test your RAM. If one stick passes or fails, take it out and try the other.

If the system works in a minimal configuration start adding parts one at a time until the system no longer works. The part that broke it is bad...
 

pandemonium

Golden Member
Mar 17, 2011
1,777
76
91
I'm curious if this is an intermittent shorting issue. I know it's a pain in the butt to check, but I'd run a barebones test with the MoBo out of the case (removed from the seating pegs and metal backing) just laying on something that's non conductive, fire resistant, and heat resistant. Just reseat your CPU, plug in your PSU, 1 stick of RAM, and use the onboard video card output.

This many problems with a single component is extremely unlikely, if not impossible, after being replaced this many times. Gigabyte is a pretty reputable brand, and mine has been working solidly for 4+ years now with overclocks and on air.

Also, regarding your build, I'm curious why you have a 2500k and only an HD6850? You're CPU heavy if this is a gaming rig. The 6850 is an awesome card, but I'd be running 2 in Crossfire if I were you.

Best of luck!
 
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crabsmack

Junior Member
Nov 26, 2011
8
0
66
I suspect a hardware problem, but it won't hurt to verify some things.

Unplug every thing you don't need, video card, hard drive/ssd and all but one stick of RAM.

Download and burn the Ultimate Boot CD and maybe a copy of Puppy Linux as well.

Try to run Puppy Linux or Ultimate Boot off the live CD. Same issues?

Use UB to stress test your RAM. If one stick passes or fails, take it out and try the other.

If the system works in a minimal configuration start adding parts one at a time until the system no longer works. The part that broke it is bad...

Haven't done this yet, but I did attempt a boot from a Windows CD. It changed nothing- the BIOS screen didn't even stay up long enough for me to change the boot order. The computer always shuts down after 3-5 seconds, no matter what I do on the BIOS screen.

I'm planning on testing my RAM once I get a replacement mobo. And I've done the minimal configuration thing- even with only the bare minimum, it suffers the same issue (thus ruling out the HDD, disc drive, etc from causing issues).

I'm curious if this is an intermittent shorting issue. I know it's a pain in the butt to check, but I'd run a barebones test with the MoBo out of the case (removed from the seating pegs and metal backing) just laying on something that's non conductive, fire resistant, and heat resistant. Just reseat your CPU, plug in your PSU, 1 stick of RAM, and use the onboard video card output.

This many problems with a single component is extremely unlikely, if not impossible, after being replaced this many times. Gigabyte is a pretty reputable brand, and mine has been working solidly for 4+ years now with overclocks and on air.

Also, regarding your build, I'm curious why you have a 2500k and only an HD6850? You're CPU heavy if this is a gaming rig. The 6850 is an awesome card, but I'd be running 2 in Crossfire if I were you.

Best of luck!

Yeah, I've done a breadbox boot. Same issue, sadly. Believe me, I've tested pretty much everything I can. Switched out PSU and RAM, reseated CPU, changed configuration of RAM.

Also worth noting is that each of these components has remained the same through my multiple failed CPUs, so none are plainly nonfunctional. It'd have to be something that can damage the motherboard over time.

And I agree, getting the 6850 was a bit of a mistake- should've gone a bit more expensive. On the bright side, I won't have to replace pretty much anything in this build bar the GPU in the near future. In any case, it's meeting my needs with flying colors right now- before this build, I was on an HD 4650.
 

pandemonium

Golden Member
Mar 17, 2011
1,777
76
91
Well I hope this experience hasn't shyed you away from building. You seem to have the interest and knack for it, being this is your first build and all.

I find it really hard to believe you've had this much bad luck with the same MoBo. I guess you're due to replace it with another. Better yet, can you try all of your other components in another before going through with that? Couldn't hurt.

Don't feel bad. Luckily you can just buy another 6850 and you're getting one of the best scaling performances on the market at the best price/performance ratio (see sig :p).