Ok so the last several weeks, perhaps once or twice a week, my computer won't turn on. Results cary, but sometimes I can press the power button multiple times and it will eventually turn on. Others, nothing happens until several minutes later it randomly boots up. A couple of times it has randomly turned off, once or twice a few seconds after I have turned it on.
Now when I say my computer is "off" there are no fans running or anything only the mobo LEDs. When it turns on the fans work and everything. Even with this problem, I would say my computer runs fine 90% of the time. I am using it right now, and have been using it in several intensive games without apparent temp probs.
I have reseated RAM, as well as the CMOS battery, replugged in several cords, attempted to boot it with the mobo power button when it's "acting up". The only thing I haven't managed to do is try and jump start the PSU when its messing up. Normally I only have a few mins before it will turn on by itself. However it's only acted up twice since someone mentioned jump starting it.
I am thinking of getting a tester from a friend, but I don't know how effective it will be especially since it is running fine now, and if it would work what it should be capable of. Any ideas?
# 1 x APEVIA X-PLEASURE-BK Black Aluminum ATX Full Tower Computer Case - Retail
# 1 x EVGA 123-YW-E175-A1 LGA 775 NVIDIA nForce 750i SLI ATX Intel Motherboard - Retail
# 1 x EVGA 896-P3-1267-AR GeForce GTX 260 Core 216 Superclocked Edition 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
# 1 x SILVERSTONE OP850 850W ATX 12V 2.2 & EPS12V SLI Ready CrossFire Ready Active PFC Power Supply - Retail
# 1 x Intel Core 2 Quad Q9550 Yorkfield 2.83GHz LGA 775 95W Quad-Core Processor Model BX80569Q9550 - Retail
# 1 x OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model OCZ2P10664GK - Retail
# 1 x Microsoft Windows Vista Home Premium SP1 64-bit for System Builders - OEM
# 1 x Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
# 1 x LITE-ON Combo Black SATA Model DH-52C2S-04 - OEM
edit: heres some idling temps and sensorsview: