Originally Posted by blakmumba
Hi Iroh, iv loosened the memory timings to 126.96.36.199 2T but still no joy. Iv dropped the multiplier down and FSB up and vice versa but im still at a dead end, iv upped the voltages on numerous components but still no joy.
A few words of advice,
1st. 8 hrs of prime95 does NOT assure you're stable, try passing 12-24 hrs. I've had failures at 20 hrs which can be a real PITA. Exceeding the 4.0GHz barrier can be a bit trying as well, but with time and patience it can be crossed if your chip is up to it. Not all chips can. I spent over a week to do it and stay stable, and found after passing that wall, 4.2 was a lot easier to achieve. Still working on a 4370MHz OC.
2nd. You have the memory tightened up which may need to have the Dram voltage pushed higher than stock which may be your current issue.
3rd. Always start with finding max "isolated" CPU limits and voltage requirements, than find the max isolated mobo HTT settings. Keep notes of these isolated settings than add them together while keeping HT Link Speed, NB Freq, and dram at near stock levels. Test for stability between all increases and pass a minimum of 12 hrs or prime95.
4th. Next would be to push the NB Freq as high as possible (2600-3000MHz), for your chip this may be a max of 2800Mhz.
5th. After the above is stabilized than try tightening the Ram and OC Dram Freq slightly.
Appears you're doing things a bit out of order, thus limiting your potential.
If you haven't seen/studied this thread http://www.overclock.net/amd-general...ing-guide.html
I'd highly recommend it and refer back to it often as needed. It has lots of info on the "HOW TO" OC plus shows you a real good path to follow.
What bios version are you running?
I'd be more than happy to assist you with setting up your bios for optimal performance as the CHIV's bios is different than most other mobo's as you can tell. You may want to check out the Link in my sig and join us in the Asus Crosshair IV Formula/Extreme Club where you'll find more info and a good group to help answer your questions on the CHIV.
If you'd like help with your bios, or anything else, feel free to PM me as I'm always more than happy to help those that ask for it.
Good luck and have fun!