Vista - help OC'ing E8400 with ASUS Mobo

this is the EXACT RAM i have (check sig, i have the GOLD but they're the same) in an 8gb config...., these sticks don't clock well AT ALL, they're currently holding my rig back from 4ghz, i can only manage to get them to 890mhz @ 6-6-6-18 (for 8gb)

the most i can muster is about 3.6ghz, but i have an 8x multi so you'll be able to get closer than me but i don't think you'll reach 4ghz with those sticks..., if you remove 4gb they will clock further but it defeats the object really... ive even tried bumping the NB voltage right up to help with the large amount of RAM, but it has no effect.

hope you get luckier with your RAM ICs than i did.





SK

well i am sure if i can't hit 4.00Ghz, i should be able to hit 3.75ghz with ease tho. So i will work towards that

3.8ghz should be easily attainable....

all sticks are different though, even matching ones can differ...







SK

Those chips offer so much bang for your buck.

3.6 to 3.8 should be achieveable. With good stability.

I managed to get an 8500 stable at 3.8. With 8G of very, very generic ram. It could go higher, but the machine wasnt worthy.

The 8 gig of ram does make things a little more difficult however. Gave me a lot of headaches.

I put an identical cpu in my brother in law's PC, with 4g of ram, on the SAME model mobo and it hit 4ghz straight off the bat. Stable, cool enough...nice.

But with tweaking to find your sweet spot, you should be fine. Just take your time, note down all your settings on each restart so you know exactly where you are at.

@ 3.6 and above, that 8400 is flying. Really good value.

Have fun.

Work towards getting the fsb to 400 and a ratio of 1:1. Once you manage that if you want to go higher youv two choices, either change the ratio or up the fsb.

I dont recommend either as changing ratio will lower system performance and overclocking ram i think is just a no no lol. If you want more performance id recommend tightening the ram timings if its possible.

But its up to you.

1:1 ratio isn't always the best ratio. Best to test different ones and see which is best when benchmarking. I've seen a few people over on the SLI forums saying they get better performance in games with ones like 2:3.

@ 1532 fsb (quad pumped) and 766Mhz for ram....so far going so good


Question tho, i disabled all the energy saving things in the Bios but yet my multiplier in cpuz still fluctuates. Why?

Disable C1E and EIST and ensure AI overclocking is disabled in bios *SpeedStep Guide:*

1. Open the Control Panel. (Classic View)
2. Click on the Power Options icon.
3. Click on the Change plan settings link under your power plan.
4. Set to High Performance

@stew2
Alright i will double check yet again...

Update:
I am running @ an FSB of 1572 (3.54Ghz) and memory at 786Mhz....running prime95 right now.

When i hit an FSB of 1612 and memory 806Mhz, i would BSOD. So now my question is....what do i need to do to hit over the 3.54Ghz?

You shouldnt be going past 400 yet as that is overclocking the ram and cpu at the same time and is harder to do. Have you tried an FSB of 394, 396, 398 and 400?.