bcooper56,

What CPU are you running? I would not overclock a Dell video card. On my XPS 730x, I do ramp up the video card fans to 100% while playing games using the EVGA Precision Tool.

Overclocking as a whole is a gray area. Before you make ANY changes, go into the bios and write down the current values under -
CPU Configuration Screen
Frequency/Voltage Control Screen
Overclock Configuration Screen
Overvoltage Configuration Screen

You should stay close to the clocks we chose at the factory -
Intel Quad Core i7-920 Bloomfield (2.66GHz, 8MB L2 cache)
Intel Quad Core i7-940 Bloomfield (2.93GHz, 8MB L2 cache)
Intel Quad Core i7-950 Bloomfield (3.06GHz, 8MB L3 Cache)
Intel Quad Core i7-965 Extreme Edition Bloomfield (3.20GHz, 8MB L2 cache)
Intel Quad Core i7-975 Extreme Edition Bloomfield (3.33GHz, 8MB L3 Cache)

Thanks very much but how do i know that i have evga carrd do all dell xps 730x come wtih the evga cards or does programa work with all gpu brands?

I have

core i7 920 2.66ghz

gtx 285

6g of ddr3 ram

also so how i change fan speeds for gpu and how can increase speed of cooler for cpu or can i?

Use the EVGA Precision Tool to ramp up the video card fans.

Use the Dell Thermal Application to change the system fan speeds.

Use the Dell AlienFX to change the colored LEDs.

The program works on all GPU's.

Alright thanks