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View Full Version : Is it safe to underclock my videocard?


artem
05-06-07, 03:31 AM
Hello,

A few weeks ago I bought a brand new nVidia 7600GT GPU.

I would like it to eat as few power as possible (this way it will also not heat up a lot). I wonder if it safe to underclock its engine and memory?

It runs 560MHz core clock and 700Mhz memory.

nvclock allows to set 420MHz core clock frequency and 525MHz memory frequency. Is it safe to set these frequencies?

jimmor
05-06-07, 05:53 AM
Hello,

A few weeks ago I bought a brand new nVidia 7600GT GPU.

I would like it to eat as few power as possible (this way it will also not heat up a lot). I wonder if it safe to underclock its engine and memory?

It runs 560MHz core clock and 700Mhz memory.

nvclock allows to set 420MHz core clock frequency and 525MHz memory frequency. Is it safe to set these frequencies?
There is nothing unsafe about reducing core and/or memory speeds ---> only thing to be expected is lower vga performance !

;)

kevJ420
05-06-07, 04:30 PM
Hello,

A few weeks ago I bought a brand new nVidia 7600GT GPU.

I would like it to eat as few power as possible (this way it will also not heat up a lot). I wonder if it safe to underclock its engine and memory?

It runs 560MHz core clock and 700Mhz memory.

nvclock allows to set 420MHz core clock frequency and 525MHz memory frequency. Is it safe to set these frequencies?

I do the same exact thing as much as nvidia will let me, you're a genius=)

Wish they'd come out with a damn ntune that works 100% and is stable 100%.

artem
04-09-09, 02:39 PM
I can only say that nvclock (it's for Linux only) rocks.

No Windows NVIDIA utility can allow me to downclock the GPU from the stock 660MHz to 240MHz, and RAM from 950MHz to 300MHz - I have an OCed 8800GT video accelerator.

This trick lowers GPU temperature by 3 degrees Celsius - from 52 to 49.

XDanger
04-09-09, 06:40 PM
I can only say that nvclock (it's for Linux only) rocks.

No Windows NVIDIA utility can allow me to downclock the GPU from the stock 660MHz to 240MHz, and RAM from 950MHz to 300MHz - I have an OCed 8800GT video accelerator.

This trick lowers GPU temperature by 3 degrees Celsius - from 52 to 49.

Not using the stock cooler will lower it by 15 degrees

artem
04-10-09, 01:15 PM
Temperature doesn't really matter, power consumption does.

Cooler has nothing to do with the latter. :) Besides, I have a modded GPU - not a stock one.

XDanger
04-10-09, 03:38 PM
Volt mod?

I'm a little lost on the logic of your proposition.

Rivatuner not work?

artem
04-12-09, 04:46 AM
Rivatuner doesn't allow to set such low clocks.

XDanger
04-12-09, 04:18 PM
I guess if graphics cards adjusted their voltage on the fly it would make sense but otherwise its a waste of effort, Just use your PC for 2 minutes less a day and run your fans to minimum or something.

Or install a low powered PCI card also for when you aren't gaming?

artem
04-12-09, 08:22 PM
I guess if graphics cards adjusted their voltage on the fly it would make sense but otherwise its a waste of effort, Just use your PC for 2 minutes less a day and run your fans to minimum or something.

Or install a low powered PCI card also for when you aren't gaming?

ATI indeed adjusts core/memory clocks in 2d/idle mode for all its newer GPUs, however most desktop NVIDIA GPUs lack internal performance profiles - and even if you create those profiles and update GPU BIOS, NVIDIA's powermizer still will not work because it works only with laptop video accelerators.

This is all sad.

XDanger
04-15-09, 07:39 PM
my 640mb GTS did 2d/3d but my 8800gt doesnt.

artem
04-17-09, 01:57 AM
An NVIDIA representative once told me that even if you have performance profiles enabled in your (desktop) GPU BIOS then powermizer will still NOT work, what a pity. :(