GeForce 8800GTS 640 Problems

[Mak333]

Alright, my new PC I was talking about is up and running, but here's the problem.

I'm running nTune to not overclock it, just to monitor my temps.  The GPU temp at IDLE is 56-58C in an Antec case with 4 120mm case fans and tons of open space and vents.  

WHY IS THIS HAPPENING?  It's not over clocked, it's running at factory settings, 513/793.  I thought maybe it was a read error, but nTune and ATI Tool say the same temperature.  Also, it doesn't detect the fan speed even though the fan is running.  I can not even change fan settings because it is grayed out.

Is it just me or am I having a lot of trouble here? (possible a bad card?)  Under load it runs to 75C and has overheated as my PC froze up.

I'm running it with an e6600 2.4Ghz Core 2 Duo, Gigabyte nForce 650i, with 2 gigs of DDR800 ram.  This system is brand new, only a day old.

Any help would be well appreciated it.

By the way, I only have the PCIe power connector from the power supply connected to it, otherwise it's only connected to the motherboard via PCIe slot.  Is there another power plug in for the video card on the motherboard, because I fould a 4 pin power port that has PCIE printed on it.

[MrRiplEy[H]]

Can you hear the fan run up automatically when you play? The 8800 fan makes quite a hum when it's stressed with 3D apps.

Maybe your fan control is defective and it doesnt dynamically adjust the speed -> trouble.

[Mak333]

I think I fixed it...

For some reason, overclocking fixed the heat problem!  Weird I know...

I'm now running graphically intense games such as Aces High, Call of Duty, and Armed Assault at 615/1019 clock speeds with only a max of 71 degrees Celsius on the GPU chip.

Weird, I know.

[Bruv119]

I have the same card and specs.

I havent monitored it too much but 71c  sounds way over!


I'll check it out when i get home.

[Fulmar]

These are fairly normal temps.  I have a 8800GTS 640 and if my ambient room temp is 80F (sorry no AC!) I can see 65C temps on my 8800.  I've read numerous forums where people post similar temps.  Even at my temps the card is not overheating and has no one problem.

I can't believe Krusty's not in here getting in on the 8800 bad driver rant

[Fulmar]

Oh and from overclocked to stock I' haven't seen more than a 2-3C decrease.

[FireDrgn]

My 88gts has always run at 168f deg...... no prob that i know of


more imput would be helpfull i dont want to fry any thing  mine is factory overclocked to 580  

my cpu is overclocked  to 3.4 ghz s its a 6700 intell core duo its temp is 132f

says system tem is 117f   what do u guys think


BTW  don't use ntune to over clock your rig u should do it in the bios

[Krusty]

ntune overclocks the GPU, not the CPU. Most BIOS don't allow you to overclock your vid card

[Fulmar]

Originally posted by Krusty
ntune overclocks the GPU, not the CPU. Most BIOS don't allow you to overclock your vid card

Unless you have a Nvidia Chipset, then you can use ntune to overclock the FSB etc etc..  

e.g. Nvidia 650 or 680's

But regardless, I'd never use any windows apps to over clock anything.  Most motherboards have an extensive overclocking menu system in the bios nowadays.  That is if you buy an 'enthuasist' board.