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Bad power supply? - computer is restarting on me

post #1 of 3
Thread Starter 
Hey guys, didn't know where to turn so thought I'd try asking in this forum.

About two weeks ago I added a new heatsink fan and some extra ram to my pc. I cleaned everything out while I was at it, but i may have damaged the motherboard. The person whom was helping me dropped a screwdriver on it during hsf installation and there was a bit of scraping when I pulled the mobo out of the case.

Anyway, everything posted properly but 5-6 days later I started getting BSOD's with x8E errors. Sounded like hardware so I started taking components out one by one. I set the system back to failsafe default in the BIOS, took out the new ram and that didn't work. Eventually I unplugged my DVD drive from both the mobo and from the psu and the pc booted.

Today, however, I have had two random restarts. No BSOD or anything. All of my fans are working and the temps are good, so really I was thinking I either damaged one of the SATA ports/controllers or had hurt the power supply when I was dusting it out.

Any tests I can run to determine either? Would a voltmeter solve this? I really don't want to buy a new PSU and then find out it was the mobo was wrong.

At this point, I am obviously leaning towards PSU issue but the mobo could have a damaged capacitor or something too. Sorry for the long post, I wanted to be thorough yet concise so I could get the best help out there.
Gaming Rig
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Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k @ 3.33ghz Gigabyte Z68-UD3H-B3 EVGA 460 GTX SC EE MSI 460 GTX HAWK 
RAMHard DriveOptical DriveOS
8GB Mushkin Blackline 1.5v 996995 Samsuing Spinpoint F3 1TB Sony 18x Windows 7 64-bit 
MonitorKeyboardPowerCase
Dell U2412M Microsoft Media Keyboard Antec NeoPower HE 550w Antec 300 
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Logitech G5 Logitech Z523 
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post #2 of 3
Ah the mysterious computer problem. Well first question is, when you say "fans are working and temperatures are fine", do you mean ambients, or are you looking directly at your CPU temps? My first thought as to sudden BSODs after installing new HSF is that the HSF got seated improperly. So I'd make sure that temps are stable under load (not sure if you did that).

Next I'd make sure your ram didn't get all unhappy, either via memtest86, or prime blend or what have you.

Depending on how you dusted everything out, it shouldn't have hurt it at all. If you have a voltmeter handy you can check if power is being sent down the wires within spec, which would be a worthwhile first check, but beyond that without really expensive equipment it's not likely you will be able to get really detailed data any other way than by tossing the system a new PSU and see if it still has issues.

The mobo sounds like it took quite a beating in that changeover, so it would be unfortunate if that were the culprit. You could try an RMA before buying a new PSU if yo udon't mind being without a comp and there's not a lot of visible damage. But start with the easy and the obvious first of course.
Bleeding Edge
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Bleeding Edge
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 5.0Ghz 24/7 ASUS P8P67PRO AMD 5870x2 8GB GSkill Ripjaw X 1600 @ CL8 
Hard DriveOSMonitorKeyboard
ADATA S599 64GB SSD + 2x 1TB Spinpoint (Raid 0) Windows 7 64Bit Dell 23" Razer Lycosa 
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post #3 of 3
The problem is so bad you decided to make TWO posts about it with the exact same name in the same forum?
442
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Q9550 E0 DFI LanParty LT P35-T2R 2 x HD4670QT512P CF Patriot PVS24G8500ELKN 
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Stock pfsense Acer H233H Antec EarthWatts 430 
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custom onboard 
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Q6600 B3 Lapped @ 3.4 GA-EP45-UD3R EVGA 9600GSO 384m 96SP 4G (2x2) Patriot Viper PC2-8500 
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442
(15 items)
 
Q6600
(14 items)
 
Piece O' Crappola
(13 items)
 
CPUMotherboardGraphicsRAM
Q9550 E0 DFI LanParty LT P35-T2R 2 x HD4670QT512P CF Patriot PVS24G8500ELKN 
CoolingOSMonitorPower
Stock pfsense Acer H233H Antec EarthWatts 430 
CaseAudio
custom onboard 
CPUMotherboardGraphicsRAM
Q6600 B3 Lapped @ 3.4 GA-EP45-UD3R EVGA 9600GSO 384m 96SP 4G (2x2) Patriot Viper PC2-8500 
Hard DriveOptical DriveCoolingOS
80g Maxtor, 320WDC. 320Seagate NEC ND-3550 & LiteOn CM Hyper 212+ w/PP Blademasters XP Pro SP3 
MonitorPowerCase
Acer H233H Rosewill RG630-S12 NZXT BetaEVO 
CPUMotherboardGraphicsRAM
E6420 GA-P35-DS3L GeForce 7300LE 2G PNY PC2-6400 
Hard DriveOptical DriveOSMonitor
80Gig WDC SATA NEC ND3540A Win 7 Ultimate 64bit/XP Pro Acer H233H 
PowerCase
Antec Earthwatts 430 none 
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