Need help choosing Power Supply

Hey all,

I am building a new system and I have ordered all the components. I currently have an X-navigator case and a power supply. I want to know whether you guys think that this power supply will suffice or whether I should upgrade to another one.

Let me list the new system specs for you:

Case: APEVIA X-Navigator ATXA8NW
Motherboard: GIGABYTE GA-EP35-DS3L LGA 775 Intel P35 ATX Intel Motherboard
CPU: Intel Core 2 Quad Q6600 Kentsfield 2.4GHz 2 x 4MB L2 Cache LGA 775 Quad-Core Processor
Video Card: EVGA 512-P3-N841-AR GeForce 8800GTS (G92) 512MB 256-bit GDDR3 PCI Express 2.0 x16
RAM: OCZ Reaper HPC Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit
Hard Drive: Seagate Barracuda 7200.11 ST3500320AS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s Hard Drive
CD-ROM: I have a DVD-RW and a DVD-ROM but I doubt these will affect the PSU as much as other components.
PSU: Thermaltake Purepower W0100RU 500W ATX 12V 2.0 Power Supply 115/ 230 V UL, CUL, TUV, FCC, and CB certification

I am wondering if that PSU will be alright for this system. I am not CURRENTLY going to overclock the system BUT if I decide to do so within the next month or 2 months, would I need to get a different power supply anyway? If so, then I may as well get one NOW and install it.

Here is the PSU I was lookin at getting. However, it may be a little overkill @ 700W.
-OCZ GameXStream OCZ700GXSSLI 700W ATX12V Power Supply 100 - 240 V

Please let me know what you think. If you have any other PSU suggestions, I would love to hear them. I have looked at the PSU ranking chart/post or whatever but I want actual PEOPLE'S opinions. Thanks for taking the time to read my post!
5 answers Last reply
More about need choosing power supply
  1. You may just want to try your current ps for awhile if you don't plan on overclocking. I would just save for an upgrade and watch for rebates. I send mine in the same day I purchase an item. Most folks are lazy about rebates, but I've received them all by being prompt and typing all info neatly on forms. Corsair has been priced lower on some other sites, such as Newegg isn't the only vender I would buy from.
  2. ^
    agree !
  3. I don't see why you would need a new PSU.
    If this one isn't having issues keep it.

    If you are still going to buy a new PSU in the 700W range check the Corsair TX 650W or 750W from like stated above. Also check PC Power & Cooling Silencer 750W ($120 on newegg).
  4. Thanks for the input!

    I think the thermaltake purepower 500W I have right now is pretty good and it hasn't failed yet. But i did some research anyways and I found that everybody on the site seems to suggest the corsair one and since its the SAME PRICE as the OCZ one I was talking about, I don't know which one to get. The extreme power supply calculator game me a needed wattage of like 328W so I think my current 500W one will suffice. But anyhow,

    Here is the breakdown of the 3 power supplies in question:

    A) Thermaltake 500W: +3.3V@22A,+5V@32A,+12V1@14A,+12V2@15A,
    -12V@0.3A, +5VSB@2A

    B)OCZ GameXStream 700W:+3.3@36A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+ 12V4@18A,-12V@0.8A,+5VSB@3.0A

    C)Corsair 650W:+3.3V@24A,+5V@30A,+12V@52A,-12V@0.8A,+5VSB@3.0A

    So thermaltake has 2 12v rails, OCZ has 4 and Corsair has only ONE but at a really high amperage.

    So anybody got suggestions?
  5. Out of these three the Corsair is an easy first pick (it's a top quality PSU).
    I don't know OCZ first hand but the GameXStream are quite good if I'm not wrong. The ThermalTake is a cheap PSU and it's quality is questionable at best (from web reviews).

    I don't see how rail count matters if they all work. Maybe it's more stable with more rails as there are less components in each loop. I don't see any drawbacks from using one single rail.
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