[woundedbear]

Hello,
I just built a new machine and it just randomly turns off. It will not turn back on until all power has been disconnected for a few minutes. Long post, but covers everything relevant. Thank you.

The specs:
Mobo: GIGABYTE GA-F2A85XM-D3H CROSSFIRE FM2

Processor: Amd A10 5800K Blk Edt 3800Mhz 4Mb 100w Socket FM2 (APU, Graphics on-board)

Memory: Kingston 8GB 1600MHz 9-9-9 DDR3 HyperX Red
(1 4GB Module and 2 2GB Modules due to TigerDirect error, Windows only sees 6GB, but that's for another day lol)

PSU: Thermaltake TRX-650M TR2 RX 650-Watt Modular Power Supply - 650W, 140mm Fan, ATX, Modular, 80 Plus

HDD: WD Blue WD10EZEX 1TB Desktop Hard Drive - 3.5", SATA, 7200RPM, 64MB Cache
(old 120GB drive also installed as extra storage)

What I was doing when this happened:
1) Cleaning files from my old hard drive after installing Windows 7 on the new drive.

2) Playing SimCity on appropriate settings. (The night previously, I played SimCity for many hours with no interruptions.)

BIOS does not show any heating or voltage problems. The CPU hits a max of 59 degrees celcius. All fans operating normally and system temperature is low.

Sounds like a power problem - PSU or otherwise. Surge protector does not have to be reset after a failure. Any thoughts appreciated.

Update:
I ran various burn-in tests and all temperatures remained below 50 degrees. BIOS reports all voltages as normal.
A few hours after testing, there was another power failure while doing nothing except for browsing the Internet.

Checked mobo power connections. 24-pin connection did have a partial disconnect, however if this is the problem, it confuses me how the computer was able to be turned back on after each failure without reconnecting it.

 

[JMPC]

Does it happen if you just sit at the post screen (pause the boot process), in the BIOS or in the Safe Mode menu?

Last time I had an issue like this it was the power supply. If it's still happening at random times I would suggest replacing or RMA the power supply.

 

[woundedbear]

I have sat in BIOS for up to 20 minutes with no issues. However, I know it may take longer.

I've had the power loss issue twice within an hour of booting the machine and once after many hours. Then there was an entire day of intense graphics and gaming with no issues at all. It is truly a random occurance. I have over a week to return the power supply and it was bought locally so I will likely just wait and see now that I've re-seated the 24 pin connection.

 

[Tyree]

The lower quality of the PSU (made by HEC and discontinued) certainly makes it suspect.
Try another surge protector or try plugging the PSU directly into the wall outlet.

 

[woundedbear]

I've read about the psu on other forums and it seems to have a reputation.

 

[Tyree]

I've read about the psu on other forums and it seems to have a reputation.

HEC PSU's have a reputation and not a good one.

Try removing the single 4GB RAM module. That "might" be an issue and using the matched pair will make use of Dual Chanel Mode and it performance advantage.
If you need more than 4GB, remove the 2x2GB, get an identical match for the 4GB and run it with the 4GB stick you have.

 

[woundedbear]

The 2x2GB modules are TigerDirect's mistake. They sent the wrong item.... twice now *sigh* interestingly enough, windows can't see ram in bays 3 or 4. So.it presently sees 6GB whereas BIOS sees all 8GB.

 

[woundedbear]

Sorry to post twice in a row.

To clarify and other things of note.
-The machine does not reboot after a failure. It loses power, however the monitor does not. The failure likely comes from within the machine itself.

-After losing power, the main switch on the back of the psu has to be turned off several minutes in order to turn the computer back on.

-BIOS was corrupted, but recovered, after the latest failure. (However, I imagine that's a normal risk involved with power outages/failures.

Thank you all for your help thus far.

 

[Tyree]

The monitor has its own power source.
Your description relates to a power issue. Trying a different quality PSU, with sufficient power, is the best option to try.
Problems with TG are far from uncommon.
Using 3 RAM sticks puts you in Single Chanel Mode and reduces performance.

 

[woundedbear]

I know the monitor has its own power source. I was just relating that I know the problem is in the computer most likely and not in outlets, etc.

I know that 3 sticks means single channel as it was Tiger Direct that sent the wrong item.

Alas, I will be returning the psu soon.

 

[Tyree]

Hopefully you will be exchanging the PSU for a good quality unit. Please post back with results.

 

[woundedbear]

Just returned my psu and upgraded to Corsair GS700. From the box and reviews I've read online, it appears to be a significant upgrade. Your thoughts?

I haven't installed it just yet (I'm in the Best Buy parking lot). Will update with results.

 

[Tyree]

That PSU is not one we recommend but it is certainly better than what you had.
Remove that odd RAM stick and you should be good.