Alright, I am having some of the weirdest problems ever with my desktop. It all started about a month ago when I decided to do a quick fall cleaning before school started up. I went to turn the computer back on, and I got a really weird screeching noise, fans spun but no boot. Took it to my school's IT dept since it is free and they said power supply was bad, made sense because it was always stuck in the I position on the I/O switch on the back, so I replaced it with a more powerful (800W Rosewill Lightning).
Got the new one in and it worked, got excited and ran some stuff, started downloading SCII since I wanted to start playing it some. I come back to my room and it had randomly powered off after ~3.5 hours. Next morning, I unplugged the power supply, plugged it back in. Computer booted, I put in my password at windows, desktop loads, BAM crash. That night decided to look a little bit more into it, it seemed as though the CPU may not have been plugged in quite like it should have so I jiggled it a little bit and it looked a bit better. Turned it on that night, let it run for 5 hours did fine, played some video games that night and it worked like a champ. Figured this was the end of my issues.
The next day, I turned it on and was sitting it idle for a little bit, listened to some music off spotify, and then once more the power down reared its ugly head after about an hour. Since then, I have gone into BIOS to try and see if my RAM is undervolted per the suggestion of a friend, but it crashed after ~5 minutes then ~30 seconds before I really even got a chance to look around in my BIOS.
At this point, I'm assuming my HDD, Vid Card and CPU are fine because the computer shouldn't pass the POST otherwise, it shouldn't be heat related because it performed fine under a load. This leaves me with either PSU, motherboard, or RAM. I plan to get a power supply tester and check that, then swap out my RAM. If neither of these fixes my problem, would it be pretty safe to assume motherboard or are there other suggestions? I have also looked around for blown/bulging capacitors and none are visible on either motherboard or video card. It's incredibly frustrating because there are plenty of threads on "my computer won't start" but very little information on random shutdowns like this, I'm hoping it'll stay int his 30 second power on range though because it will be easier to troubleshoot that way.
Current Hardware:
500GB HDD Seagate 7200RPM
Rosewill Lightning 800W
Zotac GTX 560 Ti
MB Asus M5A99X EVO 990X
4GBx2 PNY RAM
AMD Phenom II X4 955 (3.2 Ghz) with a coolermaster CPU fan
Samsung DVD drive
*The previous PSU was an Antec GreenWatts 650W (only psu on the market known to literally burst into flames, way to go Antec)
Got the new one in and it worked, got excited and ran some stuff, started downloading SCII since I wanted to start playing it some. I come back to my room and it had randomly powered off after ~3.5 hours. Next morning, I unplugged the power supply, plugged it back in. Computer booted, I put in my password at windows, desktop loads, BAM crash. That night decided to look a little bit more into it, it seemed as though the CPU may not have been plugged in quite like it should have so I jiggled it a little bit and it looked a bit better. Turned it on that night, let it run for 5 hours did fine, played some video games that night and it worked like a champ. Figured this was the end of my issues.
The next day, I turned it on and was sitting it idle for a little bit, listened to some music off spotify, and then once more the power down reared its ugly head after about an hour. Since then, I have gone into BIOS to try and see if my RAM is undervolted per the suggestion of a friend, but it crashed after ~5 minutes then ~30 seconds before I really even got a chance to look around in my BIOS.
At this point, I'm assuming my HDD, Vid Card and CPU are fine because the computer shouldn't pass the POST otherwise, it shouldn't be heat related because it performed fine under a load. This leaves me with either PSU, motherboard, or RAM. I plan to get a power supply tester and check that, then swap out my RAM. If neither of these fixes my problem, would it be pretty safe to assume motherboard or are there other suggestions? I have also looked around for blown/bulging capacitors and none are visible on either motherboard or video card. It's incredibly frustrating because there are plenty of threads on "my computer won't start" but very little information on random shutdowns like this, I'm hoping it'll stay int his 30 second power on range though because it will be easier to troubleshoot that way.
Current Hardware:
500GB HDD Seagate 7200RPM
Rosewill Lightning 800W
Zotac GTX 560 Ti
MB Asus M5A99X EVO 990X
4GBx2 PNY RAM
AMD Phenom II X4 955 (3.2 Ghz) with a coolermaster CPU fan
Samsung DVD drive
*The previous PSU was an Antec GreenWatts 650W (only psu on the market known to literally burst into flames, way to go Antec)