Curse

Chev of Hardass · Nov 10, 2005, 08:40 PM // 20:40

Just for kicks I started looking...... I am almost completely convinced that the chart is completely full of made up numbers.

Check out this PSU

http://www.tigerdirect.com/applicati...174&CatId=1078

Sorry, but I seriously doubt that 120 amps are available from any power supply.

In fact here is the proof. I am doing the equations right here.

P=iV
p=120A 12V
1440W from a 400 watt power supply?

Wow, now lets add up the other numbers.

P=3.3V x 20A + 5V x 38A + 120A x 12V
P= 1696 Watts.

Wow, a new reccord!!! all from a $21.99 400W power supply. Talk about value!!!!

I think I may just plug it into my 400W power supply and see if I get that message that says the card has been de-tuned for the lack of power it has available.

Techie · Nov 10, 2005, 10:17 PM // 22:17

When it comes to PSU's, you get what you pay for. A good 400+ W PSU should be in the $40-50 range. My 520W Aspire ATX PSU has 34A @ 12V and costed me $60.

Btw, Newegg is a lot better than Tiger Direct.

www.newegg.com

Chev of Hardass · Nov 15, 2005, 04:14 AM // 04:14

Ahh Tiger Direct is better from a shipping/recieving standpoint. 2 working days to get my 6800 to me. I am running the 400W power supply, however I will soon be running benchmarks with a second power supply dedicated to the video card. If that inproves the performance at all I will take new action. I did get all of those pipes unlocked and the shader.

Wow, I love this card!!!!!!

I went from 249 on 3D Mark 2005 (with my 5200) to 2469 with the new card, then I got to 2745 by unlocking the pipes and shader. I know there is more available, but I want to ensure that my driver is the best for my card and I have enough power before I really try and push it.

swaaye · Nov 15, 2005, 07:36 PM // 19:36

Even the most equipped gaming PC you'll ever see would be less than 300W constant. In fact most SLI systems are around 200W. A non-SLI rig sits usually at 150-170W or so running 3dmark, unless it's a recent P4 system (they suck a lot more power).

Very few people (read: SLI people) need more than a 400W PS. These power supplies actually supply only around 290W or so constant at max, with a peak power rating of 400W (what you see on the box). The efficiency of the more expensive supplies (Antec, Enermax, PC Power Cooling, etc) is a lot better because of quality construction, and having a good bit of headroom with a 400W supply will improve efficiency as well. The power supply needs to run cool and be loaded with good heatsinks or its efficiency will plummet, along with its longetivity and stability. Enermax is probably best, second to the noisy, expensive, but very high quality PC Power & Cooling supplies.

I find the whole power supply obsession fascinating. The marketing for "high-end" supplies is quite entertaining btw.

DO NOT buy a power supply that costs <$50 or so or you are just asking for trouble because it will be cheaply made. It will be less efficient for certain (and probably have other issues) and thus you will pay more for its wasted electricity (not trivial with today's PCs). You can go to Newegg and buy a 500W for $25 if you want, but I guarantee it will never push near 500W.