What kind of PSU do I need?


Baseband Member
Here's my system setup. My power supply, motherboard, and 2 graphics cards failed a few months ago, and now that I've got everything replaced, I need to make sure the original power supply was adequate. I suspect that it wasn't and that when it failed, it took the other components with it. I tried using an online PSU calculator but there was too much stuff I didn't know the answer to. Here's my system set-up:

Case ( Tuniq 3 Gaming Tower Case)
Power Supply ( 850 Watt -- Thermaltake Toughpower W0172RU Power Supply Quad SLI Ready )
Processor ( Intel Core 2 Quad Processor Q6600 (4x 2.4GHz/8MB L2 Cache/1066FSB) )
Processor Cooling (iBUYPOWER Liquid CPU Cooling Fan System Kit --- [for INTEL CPU] )
Motherboard (Asus P5N-T Deluxe NVIDIA nForce 780i SLI Chipset w/7.1 Sound, Gb LAN, S-ATA Raid, USB 2.0, IEEE-1394, 3-Way PCI-E M )
Memory ( 4096MB [1024MB X4] DDR2-800 PC6400 Memory Module Corsair XMS2 Xtreme w/Heat Spreader )
Video Card ( 2x eVGA NVIDIA 260-216)
Hard Drive ( 320 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache] )
2nd Hard Drive ( 160 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 8M Cache] )
CD/DVD Drive ( LG GGC-H20L BLU-RAY/HD-DVD Reader & DVD±R/±RW Burner Internal Combo Drive Black )
CD-RW/DVD-RW Drive ( Sony Dual Format/Double Layer 20X DVD±R/±RW + CD-R/RW Drive Beige )
Sound Card ( Creative Lab Sound Blaster X-Fi )
Network Card ( Onboard LAN Network (Gb or 10/100) )
Floppy Drive ( Mitsumi 1.44 MB Internal Floppy Drive Beige )
Operation System ( Microsoft Windows Vista Ultimate 32-Bit )


Daemon Poster
I used a power supply calc. on your rig and it seemed a bit low for what you have. I wouldn't trust it 100% but it said you were using 450w. I think your 850w psu was sufficient, but just crapped out on you.


Golden Master
850W is plenty for that system. The power supply was of good quality, perhaps it was just a dud? Can you get it replaced under warranty?