I've been having an issue with random shutdowns on my main build as of recently.
3x in the past month my machine has suddenly shutdown while gaming. Each time I had Diablo 3 running, and was browsing the AH (moderate, but not extreme CPU & GPU load). The shutdown is abrupt, as if I'd pulled the plug out of the socket. The first time it happened, CPU heatsink felt a tad warm. The most recent times, I could not feel anything unusual.
Each time it has occurred, the machine will not power up afterwards. No lights, no noise, nothing. Flipping the switch on my PSU back & forth had no effect, nor did unplugging/replugging the power cable. Waited 5-10min with the machine uplugged, still nothing.
Concerned, I decided to test the PSU in one of my older builds. After hooking it all up, the second machine started up and ran normally. When I swapped it back into my main machine, it started but did a single power cycle/boot loop, POST successful on it's second attempt and BIOS gave me a CMOS error, asking me to pick a profile. After this it ran just fine for the next few weeks.
Last night it happened again. I again swapped the PSU out into my second machine, and it started normally.
I then swapped it back into my main machine, and with the case open & only the mobo & GPU power cables connected I tried to start it and it all lit up and got a successful POST on my first attempt (no HDs connected, nor fan controller/fans).
I then reconnected all my HDs & fans, closed the case back up, moved it back into position and reconnected everything. When I went to start it up again it was all dead again, zero activity after several attempts. Frustrated, I flipped the PSU's switch a few times, replugged the cable a few times, and it sprung to life (like the first time, a single power cycle/boot loop, followed by successful POST & CMOS error and then successful boot). I may have heard an odd electric sparking sound when it sprung to life (can't be certain, TV in background).
It then performed well for the next few hours before I put it to sleep overnight, woke normally this morning and has been running since.
Is it safe to assume the problem is with my PSU? Are there any other possibilities?
My only alternate PSU for testing is the 400w OCZ in my second rig, and it's not adequate to power my 5850+i5 760. I do have a old HD4850 and a 8500GT I could throw in to my main rig to test it's other components using the alternate PSU
Main build w issues:
Intel i5 760 (mildly overclocked to 150bclk before first failure, set back to default clocks afterwards & kept there)
Gigabyte H55M-USB3
8GB G.Skill F3-128000CL9-8GBXL (2x 4GB) @ 1.5v
Sapphire HD5850 xtreme (stock clocks)
Rosewell 650w RP650-2 PSU
OCZ Vertex Plus 60GB
4 Hard Drives (2x 7200RPM, 2x 5400RPM)
No DVD drive
Fan controller with 4 12v fans.
Second build used to test PSU:
Intel Core 2 Duo E5300 @ stock clocks
Gigabyte EP45-DS3R
2GB Kingston DDR2, single stick.
GeForce 8500GT
One 7200RPM drive, no DVD drive
OCZ 400w StealthXStream
one 12v fan
3x in the past month my machine has suddenly shutdown while gaming. Each time I had Diablo 3 running, and was browsing the AH (moderate, but not extreme CPU & GPU load). The shutdown is abrupt, as if I'd pulled the plug out of the socket. The first time it happened, CPU heatsink felt a tad warm. The most recent times, I could not feel anything unusual.
Each time it has occurred, the machine will not power up afterwards. No lights, no noise, nothing. Flipping the switch on my PSU back & forth had no effect, nor did unplugging/replugging the power cable. Waited 5-10min with the machine uplugged, still nothing.
Concerned, I decided to test the PSU in one of my older builds. After hooking it all up, the second machine started up and ran normally. When I swapped it back into my main machine, it started but did a single power cycle/boot loop, POST successful on it's second attempt and BIOS gave me a CMOS error, asking me to pick a profile. After this it ran just fine for the next few weeks.
Last night it happened again. I again swapped the PSU out into my second machine, and it started normally.
I then swapped it back into my main machine, and with the case open & only the mobo & GPU power cables connected I tried to start it and it all lit up and got a successful POST on my first attempt (no HDs connected, nor fan controller/fans).
I then reconnected all my HDs & fans, closed the case back up, moved it back into position and reconnected everything. When I went to start it up again it was all dead again, zero activity after several attempts. Frustrated, I flipped the PSU's switch a few times, replugged the cable a few times, and it sprung to life (like the first time, a single power cycle/boot loop, followed by successful POST & CMOS error and then successful boot). I may have heard an odd electric sparking sound when it sprung to life (can't be certain, TV in background).
It then performed well for the next few hours before I put it to sleep overnight, woke normally this morning and has been running since.
Is it safe to assume the problem is with my PSU? Are there any other possibilities?
My only alternate PSU for testing is the 400w OCZ in my second rig, and it's not adequate to power my 5850+i5 760. I do have a old HD4850 and a 8500GT I could throw in to my main rig to test it's other components using the alternate PSU
Main build w issues:
Intel i5 760 (mildly overclocked to 150bclk before first failure, set back to default clocks afterwards & kept there)
Gigabyte H55M-USB3
8GB G.Skill F3-128000CL9-8GBXL (2x 4GB) @ 1.5v
Sapphire HD5850 xtreme (stock clocks)
Rosewell 650w RP650-2 PSU
OCZ Vertex Plus 60GB
4 Hard Drives (2x 7200RPM, 2x 5400RPM)
No DVD drive
Fan controller with 4 12v fans.
Second build used to test PSU:
Intel Core 2 Duo E5300 @ stock clocks
Gigabyte EP45-DS3R
2GB Kingston DDR2, single stick.
GeForce 8500GT
One 7200RPM drive, no DVD drive
OCZ 400w StealthXStream
one 12v fan
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