SLI reduced Chip from 2.6 to 2.1 gigs

[jri]

I installed a second nvidea 8500gt in my P5N-E SLI board that has an Intel Dual Core 2.6 gig. The second card installed and is recognized in Sandra but I lost power in my CPU. It went from the 2.6 to 2.1.

I think it might be a power problem. I only have a 420 watt power supply. I checked and the bare min for my componets is 400watts. Could that have reduced the performence of my CPU?


Thanks

 

[mdamda]

Could you be mistaking this for speedstep/C1E powersaving features kicking in? (Check the multiplier of the CPU at that point in time).

 

[jri]

The multiplier is 6 at 350 =2100.

 

[mdamda]

Yep. It's probably the power saving feature kicking in.

Run an intensive program like prime95 and you'll see the multiplier go back up to whatever it was.

 

[jri]

Thanks a million that was it. I even got a 5% overclock to 2.8

 

[Mr.Guvernment]

any reason why you bought the second card, you could of sold your first one, save da bit more and gotten a single card that would of performed ALOT better then those 2 in SLI.

 

[petteyg359]

any reason why you bought the second card, you could of sold your first one, save da bit more and gotten a single card that would of performed ALOT better then those 2 in SLI.

Best Buy says the 8500GT is a top-of-the-line current-gen card! When they had that 4870/4850 $250/$150 sale going on a month back, they were out of the 4870s. When I asked one of the sales guys if they were going to be getting any more 4870s in, he suggested I get the 8500GT instead...

 

[Badbonji]

Wow that sucks the 8500gt isn't even comparable to the 8800gt which doesn't come close to the hd4870.

 

[petteyg359]

If the OP shops at Best Buy and hasn't obtained real information from elsewhere, I pity him.

 

[don'tknow]

Best Buy says the 8500GT is a top-of-the-line current-gen card! When they had that 4870/4850 $250/$150 sale going on a month back, they were out of the 4870s. When I asked one of the sales guys if they were going to be getting any more 4870s in, he suggested I get the 8500GT instead...

Good example of Best Buy's awesome customer support. (sar)

@ OP: Your PSU is a bit low for SLI or a single decent card. Especially if it's not a good quality PSU (most stock PSU's which come with pre-built PC's/Cases are crap). Best to be safe and upgrade to a good quality 450w or 550w.