OC NB and HT

[Lucid155]

I have been trying to OC my GIGABYTE GA-890GPA-UD3H AM3 AMD 890GX mother board's NB and HT but have failed to do so reliably, it just fails in one of the workers in prime 95 in a matter of 15 seconds. I havent tried for more than an hour but i just wanted to get the most out of my setup. I know my board is advertised at 2600 mhz HT FSB(http://www.newegg.com/Product/Product.aspx?Item=N82E16813128435) but the NB and HT are at 2000 mhz in the BIOS. can someone state whats going on here? Current specs are:
CPU: 955 BE OC'd to 3.8GHZ at 1.4v x19 multiplier
RAM: 8GB Ripjaws 1600 MHZ DDR3
Cooler: Hyper 212
Case: Antec 900 hundred v2
Video: Radeon HD 6950 flashed to 6970 BIOS and OC
PSU: Antec TruePower New TP-750 750W Continuous Power ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS BRONZE Certified Active PFC "compatible with Core i7/Core i5" Power Supply (http://www.newegg.com/Product/Product.aspx?Item=N82E16817371025)
MOBO:GIGABYTE GA-890GPA-UD3H AM3 AMD 890GX
Monitor: 24" Asus LED HDMI

 

[saint19]

Hi.

1- Read this: http://www.tomshardware.com/forum/258573-29-black-edition-overclock-guide-raising-multiplier
2- What temps do you get at load?
3- What settings are you using?

 

[Lucid155]

I get 38C at idle and 48C sometimes 49C at Load.
Settings for prime 95: Small FFT's, CPU

 

[saint19]

How long you run that test?

 

[Lucid155]

for about 10-15 mins.

 

[saint19]

Run it for more than that. 30 or 40 minutes.