I'm sorry, but I highly doubt that's true.

i can take pictures of the power supply and a screen of my newegg purchases/dates if needed. I swear to god it is true.

EDIT:
okay, looking back at the dates on the invoices it was 4 months, but still a long time.

It suffices to post what cards you had in SLI, because it certainly can't have been very high-end.



If you ran no games for 4 months, I believe you.

I'm not stubborn about it - it's just that when you recommend up to 750 watts for a system that's "Mid-Range" in terms of power consumption at best you just oversized things. Also just keeping to tell that it "just won't run" is no valid point. To give you proof: Look at the power consumptions (yet again as afaik we had this conversation once, right?):
http://www.computerbase.de/artikel/hardw...istungsaufnahme

A triple HD4870 system with highly overclocked Core 2 Extreme QX9770 drains "just" less than 600 watts (which value you have to reduce anyway as the measurement tool measures the inefficency too) which pretty much is the same as for two GTX 295 cards forming a physical Quad-SLI. It's also not like those results would be "strange" or something like that. In other words: For a nice SLI / Crossfire system you can be fine with something around 500-600 watts...

So if you really want to make your point here show some evidence for your view...

Enjoy your meal
Toast

No you can't... even my one. SINGLE. GF 9800 GTX+ complained a lot when i had just my "regular" 500 W power supply in. Games ran slow and sluggish. Almost no improvement from my GF 6200...

I upgraded to 850 W and the performance went up like a ARIANE Space Rocket.

If ONE GF 9800 GTX+ cant run on 500 W, I very, absolutely, highly doubt that a SLI of TWO GTX295's will. Maybe enough to play The Sims 1 or run a screensaver, but beyond that there simply isn't enough power. It doesn't frikin add up.

i googled gf 9800 gtx+ and a whole system with it only seems to take 300W:

http://www.guru3d.com/article/geforce-9800-gtx-512mb-plus-review/3

maybe your 500w power supply was a bit cheap or broken? :p

You must have misread my post a bit - I nowhere said anything about two GTX 295 running on a 500 watts PSU...

Concerning your 500W problem - that's something I mentioned in the other thread where I started arguing with afaik Phemox too which is that the watt number isn't the single decisive factor which let's you run a system. For quite some time the number of 12V rails and how much A they can deliver is important. So you didn't care much about those specs, did you?

Enjoy your meal
Toast

At last, someone hit the nail on the head. Well done toast.
Its only really possible to get a "ball-park" idea about a PSU's capabilities
but looking solely at its XXXwatts rating.

I have dealt with MANY MANY differing PSU's over the years both as a
professional computer tech and as an electronics tech(no longer professional).

Pick up any two PSU's of the same wattage, but different brandnames, and look at
the wattage ratings of the different rails, ALWAYS different, often wildly.

Different devices in the PC lean on different power rails, the primary sufferer
is the old 12V rail, which damn near everything uses. 5v is negligable these days,
and the 3.3V is some CPU, mostly ram usage.

I have seen 350w PSU's with a higher wattage output on the 12V than some 450W PSU's.
So you need to look "mostly" at the 12V specs of a PSU to measure its worth.

@phemox

http://www.tigerdirect.com/applications/...E=WEBLET101SHIP

and yes i did play games on it. Alot. the first thing i did once i got the computer all set up and installed windows/drivers is dl the crysis demo and crank all the settings up. at the highest dx9 settings it was playable, a little sluggish a times but still playable.

Right, well a Core 2 duo 3,0Ghz, 4Gb memory, 2 hard disks and a single ATI Radeon HD2900XT simply won't run on a 450Watt power supply. It doesn't even boot. Build one and see for yourself as apparently you won't believe anything I say anyway.

Besides, go back to my original post where I am not talking about 750Watt, but instead 500-750Watt. Basically >500Watt.

Your link proves my point perfectly by the way. A system with a triple HD4870 might be able to boot with a 400Watt power supply (I doubt that) according to their test results, but it's stupid to recommend anything less than 600Watt.

Why else do you think that both Nvidia and ATI recommend power supplies of >500Watt for crossfire or SLI systems.

To be honest, I sort of doubt those test results show the spikes of power consumption, but rather the average result.



Yep, and you failed to convince me back then too. I know for a fact a lot of systems won't even boot (I used to build a lot of PCs until about 6 months ago), let alone be able to handle a medium load when it comes to high-end systems and <500Watt.

But really, this isn't helping the topic starter at all.



Yeah, but try running it with a 350Watt power supply and it most likely won't boot or run very stable.


I've got a feeling a lot of people don't have high-end machines here.