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.
THIS IS MY CURRENT PSU:
PSU: Thermaltake Purepower W0100RU 500W ATX 12V 2.0 Power Supply 115/ 230 V UL, CUL, TUV, FCC, and CB certification
http://www.newegg.com/Product/Prod [...] 6817153052

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
http://www.newegg.com/Product/Prod [...] 6817341002

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!

Well, the one I have right now is NOT a OCZ. I have the thermaltake 500W.

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?

Are you planning on going SLi in the future?

Yes it can, a PSU fault can load out your whole system. A reliable PSU is seriously one of the most vital components of your setup. Just for that setup i would reccomend something around the 580-600W mark, but if your going to OC in the future I would highly reccomend 650-750W

So that OCZ GameXStream is going to suit your needs perfectly, especially with you wanting to step up to the next gen cards I would most definantly purchase it

No problem mate, for a non SLi setup you don't want anymore than one 12V rail, and until you OC that PSU should be fine buddy.

Enjoy it!

http://www.extreme.outervision.com [...] orlite.jsp tends to overrate everything and it seems, that it tries to create an upsale. This is far from reality.

I find this calculator is closer to reality :
http://web.aanet.com.au/SnooP/psucalc.php

With your computer settings, I think, a 450/500W PSU should be more than enough.