I have an OCZ 700 Watt Game Stream PSU.

I want to know if you think it is enough to handle the following heavy upgrade:

• 4 x 120 mm LED fans
• AMD 64x2 6400 processor
• TWO 1950GTs running in crossfire
• Aero Cool Gate watch fan contoller
• 1x 250GB hard drive
• 2x DVD drives
• 1x card reader
• 1x floppy drive

yea

I currently have an AMD 64x2 4200 processor with one Sapphire x1950GT video card.

So going to 6400 with Crossfire would be a strong upgrade.

but is that hardware going to be pushing the power supply to it's limit or will it comfortably run on it with a good amount of wattage to spare?

This power supply has an efficiently rating of about 80%

so 700 Watts x .80 = 560 Watts worse case scenario

The efficacy is the %of the watts drawn from the wall that it uses. So psu that draws 100ws from he wall uses 80 of them. The 700w is the max watt it can output, not the max it can input. If you did manage to use all 700w, on 80% efficacy, it would be outputting 700w and drawing 840w.

yes, the game x stream cam handle it fairly easily.

Your psu can supply 700 watts, it will take 875 watts from the wall to do it.

should handle it easily, whats the amperage for the rails?

Really? That is good to know. I am glad I invested in a 700 Watter when I first built my PC. My current components are not worthy of a 700 Watt Power supply but I bought it with long term upgrades in mind.

It has 4 rails

+3.3@36A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+ 12V4@18A,-12V@0.8A,+5VSB@3.0A

It is crossfire certified by ATI. It does not have that offical X-fire certified logo but if you go to the AMD site it has the OCZ Game Stream 600W, 700W, & 850W listed as Crossfire cerified components for 1950 series.

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

I am tempted to get a HD3850 Video card. Rumor has it the price is going to drop from $179 to a good amount lower. I am guessing around the $159 range. That should happen in the next week or two per what I remember reading on fudzilla a few days ago.

As of right now a 2nd Sapphire 1950GT would be a cheap upgrade.

I only have a 1280 x 1024 19" square NEC LCD monitor. So I don't really need a monster of card to achieve good frame rates.

If I had a 22" inch panoramic screen monitor or bigger then it would be a different story.

RWayne

Try this site http://www.extreme.outervision.com [...] orlite.jsp
I use it and its pretty darn close to perfect. I have the OCZ SXS 600 for my Q6600 and 8800GT and i could easily add another 8800GT and my PSU would handle it just fine.

I am really being encouraged by all of these posts. I can't wait to attempt the upgrade

Does anyone know of any software programs or utilities or Bios functions that can tell you how much juice your hardware is sucking up?

I see these reviews online showing how many watts video cards are using at idle and underload playing games like AOEIII, Oblivion, FEAR, and such.

I might be wrong here so correct me if am...but from my understanding of it the 8800 gt needs 200-250W to operate. So two of them would need 400-500W. The rails on the OCZ SXS 600 and the OCZ GXS 700 both have 4 four +12V rails running 18A each. You're not going to get 864W (12V * 18A * 4). More like 400W. So if you run your Q6600 on one rail (100W if youre not OCed), one 8800GT on another (200W best case), and the other 8800 GT on a different (another 200W best case) then youre looking at 500W with just your mobo and SLI cards. So the PSU would not be sufficient or if it is you would be cutting it pretty close ???

Is this correct?

The card has a TDP of 105 watts, 2 of them use less than 200 watts in SLI mode.