Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > Overclocking my Video Card (For the 1st Time)

Overclocking my Video Card (For the 1st Time)

Forum Graphic & Displays : Graphics Cards - Overclocking my Video Card (For the 1st Time)

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localcpuguy   08-07-2007 at 06:07:01 PM

Okay... So here is the deal. I recently bought the following system setup:

Intel Q6600 (Currently playing with overclocks... @ 9 x 385FSB right now)
2GB G.Skill PC6400 RAM @ (5-5-5-15, 1155MHz I believe...) Another 2GB on its way.
2x 150GB WD Raptor X drives in RAID-0.
EVGA NVidia GeForce 8800GTX 768MB.
ASUS P5K Deluxe Wi-FI/AP Mobo.
Microsoft Windows Vista Ultimate x64.
Koolance Exos-2 Liquid-Cooling setup- Water blocks on: CPU, RAM, Raptor Drives.

----------------

I am more than moderately experienced in over-clocking RAM and Processors, however I have never attempted to overclock my video card. I know this seems stupid, but coming right out with it.... "What needs to be manipulated in the BIOS to over clock the GPU's core-clock speed, and the memory?"
*KEEP IN MIND*- I am still running stock fan on my 8800GTX and nothing has been altered or changed on it.
Also, what can I expect for speeds with my setup? and if I add a water-cooling block to the GPU?

Thanks in advance!

------------------------------ Thermaltake Armor Series Case - ASUS P5K Delux Wi-Fi Motherboard - Intel Q6600 2x4MB Cache 2.4GHz....@ 3.6GHz - 4GB G.Skill PC-6400@1125MHz 5-5-5-12 - EVGA GeForce 8800GTX - 2x 150GB Western Digital Raptor X (RAID-0) - 40" 1080p Samsung LCD.
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makingthemaker   08-07-2007 at 07:32:22 PM
- 0 +

Ok, I would recommend doing it through software tools and not through bios. If you are running vista, download either ATITool or Ntune (I like ntune the best on vista, some will say its garbage but it never gives me trouble). Once you open them it will be very apparent and easy for how to change the clock setting on the vid card. Ntune will have a tune system tab right next to the change clock settings tab, i would not advise you to do that. Best way to do it is increase speeds a little (core and memory in 1-2% increments) then stress test it. If it doesn't crash, increase and stress again until it does. Once it crashes, set it back to the highest previously good setting.
If you are running xp, do not get ntune. I have had serious troubles w/ it. ATITool all the way on xp. Do the same thing as stated above to overclock.
Also with ntune get nviewmonitor which will show you gpu temps. I dont know how hot yours normally runs to tell you a temp to not go over, but just dont go over a temp that you would be comfterable with it running at. I would have this open while you are stress testing just to insure that it doesn't break your temperature barrier.
As for what to stress test on, I have no freakin idea w/ that system. I've been stress testing on lost planet demo, but your computer would laugh at mine (amd 4000+, 2 gb ddr, 8600gt). ATITool has a spinning cube if you click on the 3d button, which will use some cycles but I dont know if it would be enough to really give it a good stress. Anyone else have anything he could stress test this monster on??

(Sorry for the long post, hope it helps, pm me if you need anything else)

------------------------------ Support my blog: http://freecomputingtips.blogspot.com/

 

Reply to makingthemaker

localcpuguy   08-08-2007 at 01:12:02 AM
- 0 +

Awesome.. Thanks a lot, much appreciated.

------------------------------ Thermaltake Armor Series Case - ASUS P5K Delux Wi-Fi Motherboard - Intel Q6600 2x4MB Cache 2.4GHz....@ 3.6GHz - 4GB G.Skill PC-6400@1125MHz 5-5-5-12 - EVGA GeForce 8800GTX - 2x 150GB Western Digital Raptor X (RAID-0) - 40" 1080p Samsung LCD.
 Reply to localcpuguy
No1sFanboy   08-08-2007 at 02:18:55 AM
- 0 +

Everyone has their own preferences but personally I find ntune to be bloated.

I run three different profiles(underclock/overclock/default) and currently use atitool for my 8800gtx.

Regarding whether or not the spinning cube stresses the card it does so and very well. I know that when I stress test my card with the atitool's 3dview the card heats up more and faster than any game or 3dmark.

Here is a good review of the various utilities Anandtech did recently. http://www.anandtech.com/printarticle.aspx?i=3019

Reply to No1sFanboy
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