techPowerUp! Forums - View Single Post - Overclocking the HD4870 1GB beyond 790MHz!

WhiteNoise · Mar 20, 2009, 04:30 PM

I was able to run my 4870 1GB at 840/1000 no problem until I installed a second 4870 1GB and now I have to keep both cards at 800/1000. anything over 800 and the cards aren't stable.

I'm totally ok with that though.

Processor:	Intel Core i5 2500K @ 4.7GHz
Motherboard:	MSI P67A-GD65 B3
Cooling:	Custom Water loop
Memory:	Corsair Vengeance DDR3 8GB (2x4GB)1600MHz
Video Card:	XFX Radeon HD 6970 2GB
Hard Disk:	Intel X25-M G2 80GB SSD // W.D.Velociraptor 10k 300GB // Seagate Barracuda 500GB // 1TB
Optical Drive:	Samsung 22x DVD Burner SH-S223F
CRT/LCD Model:	Samsung Series 6000 40" LED LCD
Case:	ThermalTake Level 10 GT
Sound Card:	Creative X-Fi to Harman/Kardon 3490 to Hsu HB-1 MK2 speakers & Velodyne CT-150 sub
PSU:	Corsair TX850W
Software:	Windows 7 Ultimate 64 bit

Mar 20, 2009, 04:30 PM	#14
WhiteNoise Join Date: Feb 2009 Location: Riverside, CA Posts: 960 (0.62/day) Thanks: 156 Thanked 198 Times in 149 Posts System Specs	I was able to run my 4870 1GB at 840/1000 no problem until I installed a second 4870 1GB and now I have to keep both cards at 800/1000. anything over 800 and the cards aren't stable. I'm totally ok with that though.