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[mrt]
[Admin] Code Monkey
Posts: 1342
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 Posted: Fri, 2nd Mar 2012 09:12 Post subject: New build disaster |
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Hey peeps!
I just put together a new build after 5 years with a decent configuration, so I was in-league with you chaps! ...for about 5 hours.. 
I put together an Asus P8Z68V-PRO/GEN3 and a Core i5-2500k, Thermalright TrueSpirit 120, Corsair vengeance 1600Mhz 8GB, Antec TP-750 New, and a Radeon 6870 I already had. The box was running fine for about a day, my HDD died so I had to get a new one, but until then I ran memtest and other diagnostics well. Finally yesterday I put in the new drive and start setting everything up. About a few hours in the box just shut down (imagine having a power outage - thats how it looked). Then the box just started cycling on and off, 5 seconds passes and it turns on again then off and so it repeats. The most time the box has managed to say alive was 30 seconds, not even enough to get into bios. The CPU diagnostic LED lights, then it just powers off. Sometimes it gets passed and moves on to the Mem LED but then the CPU led lights on again and it goes its merry was turning on and off.
I have tried the following,
- disconnected everything, only the motherboard, CPU and RAM remained;
- tested the newly bought Antec TP-750 New PSU, its fine. Even replaced it with an older Antec just to be sure. Same Issue;
- cleared the CMOS to reset BIOS;
- Tested each RAM stick individually;
- Tried booting without RAM, removing it completely, to see if it would at least boot up and beep, no change. Sometimes, on very rare occasions, it keeps beeping then shuts off again and the cycle repeats;
- Reseated the CPU, reapplied thermal paste. There are no bent pins (unlikely since the PC was working fine until it suddenly shut down, but better to be sure!);
So I'm pretty sure it is either the motherboard suddenly failing or the CPU that is bad. I think I eliminated any other causes and those are the only two that remain.
Any other suggestions or any useful advice guys? Anything like that happen to anyone yet? I'm completely baffled and very disappointed. Looks like my luck ran out on this one.
Thanks and throw a dime in a wishing well for me, I need every penny 
teey
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 2nd Mar 2012 10:03 Post subject: |
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Nope, my diagnosis would be the same.
Hard part now is to figure out which, only way to really do that is to test either with a working counterpart (so CPU on another, working board or a working CPU on your board).
Do a visual inspection of the board, look for leakage around capacitors and/or burned mosfets, specifically between CPU and southbridge (chip between CPU + PCI slots). If any of them failed, that's the first place it'll happen due to the "massive" amount of power going through (relatively speaking).
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| Posted: Fri, 2nd Mar 2012 10:57 Post subject: |
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Are you using PSU extensions by any chance? Sounds like a short to me. Ive had way too many of those. Theyre more common than anything I think. Rebuild your rig outside of the case on card board or some other non conductive surface
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ
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JBeckman
VIP Member
Posts: 34984
Location: Sweden
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| Posted: Fri, 2nd Mar 2012 11:46 Post subject: |
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You didn't screw with the bios or anything did you?
Asus support website links to their update utility for Windows but if you do try to update the bios from that you will kill the motheboard, I discovered that myself and found better info on the forums then.
(Clear switches and resets won't help since the core bios is corrupted.)
Didn't mention anything about it so it's probably something else but the way the system powers down and up is identical to the problem I had so that's why I mentioned it.
Otherwise the above about short circuit is definitively something to check unless like you said you got a defective CPU or motherboard.
(Which will be more difficult to test.)
Also did you check all the cabling just in case?
(Same with PCI seating and such.)
EDIT: Latest Bios was released 2012-02-24
http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z68V_PROGEN3/#download
(Just a suspicion, I could be entirely wrong.)
EDIT: Your CPU was added as supported via the initial 0301 bios so it seems fine.
http://support.asus.com/Cpusupport/List.aspx?SLanguage=en&m=P8Z68-V%20PRO/GEN3&p=1&s=39
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[mrt]
[Admin] Code Monkey
Posts: 1342
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tonizito
VIP Member
Posts: 51408
Location: Portugal, the shithole of Europe.
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| Posted: Fri, 2nd Mar 2012 15:41 Post subject: |
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| [mrt] wrote: | | It looks like that after a while the cooler backplate started causing shorts with the caps. All of it was uncomfortably close so I used some of my magic electricians tape and isolated the touchy areas. |
At least now we know that this
| Quote: | | Asus P8Z68V-PRO/GEN3, Thermalright TrueSpirit 120 |
might be a combo to avoid.
| boundle (thoughts on cracking AITD) wrote: | | i guess thouth if without a legit key the installation was rolling back we are all fucking then |
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[mrt]
[Admin] Code Monkey
Posts: 1342
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| Posted: Sat, 3rd Mar 2012 13:31 Post subject: |
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tonizito, it can happen with any board with a metal backplate. The main thing is that you check it out, i didnt because i was sure there's no way that can happen since the board is on the compatible list. What can ya do but take a good lesson out of it all.
fuckit, if its eeprom or flash (probably flash now because its 64mbit - eeproms arent cheap with such capacities) they can handle 10k writes minimum, but you can draw an unlucky straw anytime and have it fail on you instantly.
I upgraded, but my heart did skip a few dozen beats..after the flash the box just kept resetting, it did it like 5 times. Then it came up alright. Is that normal at all? Smells weird.
teey
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). It looks like that after a while the cooler backplate started causing shorts with the caps. All of it was uncomfortably close so I used some of my magic electricians tape and isolated the touchy areas. After that it all started hopping along nicely again.
