Good morning! I just finished building my first new system in a few years, and it's having an issue where it shuts off completely (or occasionally hangs).
SPECS: Some original parts I've returned/exchanged with different ones while trying to fix this, I'm listing both for completeness
Mobo: originally Gigabyte 990FXA UD3 rev.3, replaced with rev.4 of same model board
CPU: AMD FX-8320
RAM: Originally Crucial Ballistix Sport 2x4GB DDR3-1600, replaced with Corsair Vengeance 2x4GB DDR3-1600 CL9
GPU: Originally a refurbished Nvidia GTX 560Ti, replaced with EVGA GTX 660 "Superclocked" (model 02G-P4-2662-KR), also tried an older EVGA GT 240
PSU: Thermaltake TR2 600W (switched with another working power supply at one point for testing to no avail)
HDD: Seagate Barracuda 7200RPM 1TB (SATA 6Gb/s)
OS: Win7 64bit Home Premium
Case/cooling: MSI Tactical TC-303, comes with one 120mm rear fan, haven't added any other fans other than stock AMD CPU fan and heatsink
Here's a fairly detailed (and somewhat lengthly) rundown, best I can remember, of what I've tried:
After putting it all together with the original parts, everything went smoothly until there were random shutoffs while installing drivers or downloading games from Steam. When this happened, the entire power went off and wouldn't turn back on until after I flipped the power toggle on the PSU and unplugged the power cord for a few minutes. This sometimes happens after a while (I managed to get a few rounds of League of Legends in while using Skype with both Firefox and Steam running in the bg) but sometimes happened not long after startup or while the only thing running after startup is a single gmail tab in firefox.
After this, the part swapping began: I first exchanged the CPU for another new FX-8320 (didn't help), tried swapping out the GTX 560Ti for the older GT 240 (seemed to work a little longer and bluescreened rather than shutoff which it occasionally did on the old system it was primarily used in), ran memtest on the RAM overnight (passed 8 times), switched to an older 500W power supply from a roommate's working computer (didn't help), ran Furmark on both video cards (which did NOT result in a shutoff and looked hilarious on the GT 240), changed BIOS settings to use only Legacy instead of UEFI... still no help, it hard shuts off after a seemingly random amount of time, before which point it shows no issues and performs beautifully.
I returned the CPU again WITH the mobo and got a rev.4 board instead of rev.3, same CPU. After installing and adjusting the BIOS to use Legacy, the problems persisted as randomly as before. Running in Safe Mode results in no issues, but I didn't do much other than poke around in folders and read email before restarting. On advice from google searches on the video card I tried running windows index, which caused a shutoff during the CPU test - similar to what others had experienced. In addition, a knowledgeable friend over the internet as well as both roommates pointed out that even though the RAM test showed the memory was okay, it was a brand and model that wasn't tested by the manufacturer on my mobo. I returned the RAM and refurb GTX560Ti for the Corsair RAM and GTX 660 video card listed above.
After installing both and updating video drivers, the system IMMEDIATELY after startup shut off, sometimes during startup. In safe mode, EventLog now displays NTFS errors. I scheduled Scandisk to run during next reboot (before OS loads), then reboot. Scandisk displayed 0 errors, then about a second after the results were displayed, got a shutoff. At this point I formatted the drive and reinstalled Win7 from scratch, which went completely smoothly. I installed video drivers and restart, no issue. I installed Mobo drivers (Realtek sound and Realtek network interface) then installed firefox. About 5 min later it shutoff after trying to download the Skype executable. I threw the old GT 240 in, and after installing its drivers and rebooting, shutoff almost immediately after startup before I could launch anything. I removed one stick of RAM and reseated another, which shutoff during startup. I removed that stick and put in the other in a different slot, which worked fine for a while but crashed when patching League of Legends. So far, this was the longest it lasted since installing the new video card and RAM.
One of the roommates got the idea to reduce the voltage to the CPU, which let it run fine until about 10 minutes into a game of LoL. We then restarted the BIOS to look at the CPU temp, which read 35 across the board initially then 28-30 idling in BIOS. I ran Memtest on the one stick of RAM overnight, which came back OK after about 10 passes. Right now the other stick is running (the one that when used alone crashed in startup), and after work I'll see what the result is... and that's where I am now.
I've replaced everything I can think of to replace in the system but nothing seems to help. Aside from potentially having terrible luck with multiple faulty parts, I'm not sure what could be causing this. I haven't adjusted any other BIOS settings other than disabling UEFI, turning NumLock on by default (the rev.3 board absolutely refused to do this, BTW, even though it was properly set in the bios), and the aforementioned lower voltage adjustment on the CPU. I'm out of ideas.
Any ideas, assistance, guidance, anything is greatly appreciated!
SPECS: Some original parts I've returned/exchanged with different ones while trying to fix this, I'm listing both for completeness
Mobo: originally Gigabyte 990FXA UD3 rev.3, replaced with rev.4 of same model board
CPU: AMD FX-8320
RAM: Originally Crucial Ballistix Sport 2x4GB DDR3-1600, replaced with Corsair Vengeance 2x4GB DDR3-1600 CL9
GPU: Originally a refurbished Nvidia GTX 560Ti, replaced with EVGA GTX 660 "Superclocked" (model 02G-P4-2662-KR), also tried an older EVGA GT 240
PSU: Thermaltake TR2 600W (switched with another working power supply at one point for testing to no avail)
HDD: Seagate Barracuda 7200RPM 1TB (SATA 6Gb/s)
OS: Win7 64bit Home Premium
Case/cooling: MSI Tactical TC-303, comes with one 120mm rear fan, haven't added any other fans other than stock AMD CPU fan and heatsink
Here's a fairly detailed (and somewhat lengthly) rundown, best I can remember, of what I've tried:
After putting it all together with the original parts, everything went smoothly until there were random shutoffs while installing drivers or downloading games from Steam. When this happened, the entire power went off and wouldn't turn back on until after I flipped the power toggle on the PSU and unplugged the power cord for a few minutes. This sometimes happens after a while (I managed to get a few rounds of League of Legends in while using Skype with both Firefox and Steam running in the bg) but sometimes happened not long after startup or while the only thing running after startup is a single gmail tab in firefox.
After this, the part swapping began: I first exchanged the CPU for another new FX-8320 (didn't help), tried swapping out the GTX 560Ti for the older GT 240 (seemed to work a little longer and bluescreened rather than shutoff which it occasionally did on the old system it was primarily used in), ran memtest on the RAM overnight (passed 8 times), switched to an older 500W power supply from a roommate's working computer (didn't help), ran Furmark on both video cards (which did NOT result in a shutoff and looked hilarious on the GT 240), changed BIOS settings to use only Legacy instead of UEFI... still no help, it hard shuts off after a seemingly random amount of time, before which point it shows no issues and performs beautifully.
I returned the CPU again WITH the mobo and got a rev.4 board instead of rev.3, same CPU. After installing and adjusting the BIOS to use Legacy, the problems persisted as randomly as before. Running in Safe Mode results in no issues, but I didn't do much other than poke around in folders and read email before restarting. On advice from google searches on the video card I tried running windows index, which caused a shutoff during the CPU test - similar to what others had experienced. In addition, a knowledgeable friend over the internet as well as both roommates pointed out that even though the RAM test showed the memory was okay, it was a brand and model that wasn't tested by the manufacturer on my mobo. I returned the RAM and refurb GTX560Ti for the Corsair RAM and GTX 660 video card listed above.
After installing both and updating video drivers, the system IMMEDIATELY after startup shut off, sometimes during startup. In safe mode, EventLog now displays NTFS errors. I scheduled Scandisk to run during next reboot (before OS loads), then reboot. Scandisk displayed 0 errors, then about a second after the results were displayed, got a shutoff. At this point I formatted the drive and reinstalled Win7 from scratch, which went completely smoothly. I installed video drivers and restart, no issue. I installed Mobo drivers (Realtek sound and Realtek network interface) then installed firefox. About 5 min later it shutoff after trying to download the Skype executable. I threw the old GT 240 in, and after installing its drivers and rebooting, shutoff almost immediately after startup before I could launch anything. I removed one stick of RAM and reseated another, which shutoff during startup. I removed that stick and put in the other in a different slot, which worked fine for a while but crashed when patching League of Legends. So far, this was the longest it lasted since installing the new video card and RAM.
One of the roommates got the idea to reduce the voltage to the CPU, which let it run fine until about 10 minutes into a game of LoL. We then restarted the BIOS to look at the CPU temp, which read 35 across the board initially then 28-30 idling in BIOS. I ran Memtest on the one stick of RAM overnight, which came back OK after about 10 passes. Right now the other stick is running (the one that when used alone crashed in startup), and after work I'll see what the result is... and that's where I am now.
I've replaced everything I can think of to replace in the system but nothing seems to help. Aside from potentially having terrible luck with multiple faulty parts, I'm not sure what could be causing this. I haven't adjusted any other BIOS settings other than disabling UEFI, turning NumLock on by default (the rev.3 board absolutely refused to do this, BTW, even though it was properly set in the bios), and the aforementioned lower voltage adjustment on the CPU. I'm out of ideas.
Any ideas, assistance, guidance, anything is greatly appreciated!