Rampage Formula can't run my 8GB OCZ reaper!

[h911]

Long story short:

Got a rampage formula from the egg, it runs fine but no post with 8gb ( 4 x 2gb) of OCZ Reaper (OCA2RPR800C44GK, PC2 6400 4-4-4 @ 2.1v). Post just fine with 6gb @ 800. I tried everything I can possibly think of..like lower the ram to 667, lower the timing to 5-5-5-15 2t with 2.1v, crank up the nb or sb voltage. everything...no luck..

Is there anyone with a similar setup? or I'm just SOL?

Anyone has a rampage formula with 8GB? cuz if I can't get it to run at 8GB I may have to switch ram to sth that would work 8gb at full speed with this mobo.

Thanks a lot. I would really appreciate any inputs.

[Vienna]

Reset Bios, use only 2 sticks, set it up at 800MHz strap at 2.1V at stock timings, THEN save and put the other 2 sticks in, thats what I had to do to get my 8GB of Corsair Dominators detected and etc before I could start tweaking them on my Maximus Formula (pretty much the same mobo)

[h911]

Reset Bios, use only 2 sticks, set it up at 800MHz strap at 2.1V at stock timings, THEN save and put the other 2 sticks in, thats what I had to do to get my 8GB of Corsair Dominators detected and etc before I could start tweaking them on my Maximus Formula (pretty much the same mobo)

Thanks for ur advise.

Tried that and same issue. No post with 4 sticks, with all different speed and setting, 533,667,800, from 5-5-5-15 to 4-4-4-12 @ 2.1v

It's pretty weird that 2 sticks on 1 and 3 slots (2 whites) won't post even with lower memory clock speed or timing (533,667 @ 5-5-5-15). However it posts with 2 sticks on slot 1 and 2.

I think it just doesn't like my ocz.

[zanzabar]

try it with 1.4-1.55V NB

[h911]

already with 1.55v nb.

I mean I really like this mobo. Compare with my previous P5N-E that can't oc my q6600 past 3.0, it oc my quad to 3.6 so effordlessly. Everything works like a charm .........except the memory..-_-

[kup]

Is it a dead stick? Or a dead slot? Try each stick in each slot and see if you can recreate the problem.

[Armored_Kech1]

Rampage Formula is very picky with RAM. Let me repeat that for emphasis: Rampage Formula is extremely picky with RAM and specially when overclocking. Rare cases aside, OCZ doesn't have a good record with the Rampage Formula. I had OCZ Platinum RAM on my Rampage, it could't run 400fsb 1:1 no matter what. The reply from OCZ was "This RAM doesn't like running in sync too much". This isn't just my personal experience. Changed to G.Skill, flawless performance.

[theonlybabyface]

I'll second the comment about the G.Skills on this mobo. Runs my 8GB's without breaking a sweat...:D

[zanzabar]

already with 1.55v nb.

I mean I really like this mobo. Compare with my previous P5N-E that can't oc my q6600 past 3.0, it oc my quad to 3.6 so effordlessly. Everything works like a charm .........except the memory..-_-

well 8GB are hard to clock, try with a huge trfc like 65 and host slew rate of strong with relaxed performance lvl like 10 (asus calls it AI booster or something and dosnt give u and exact number so try +3)

[3lfk1ng]

well 8GB are hard to clock

No way, they take it like a champ.
http://img183.imageshack.us/img183/3536/4608ghzvg3.th.jpg (http://img183.imageshack.us/my.php?image=4608ghzvg3.jpg)http://img183.imageshack.us/images/thpix.gif (http://g.imageshack.us/thpix.php)

Like everyone else has said, this board does love g.skills.

Good news though, they are on sale atm. (Same sticks I'm using) (http://www.newegg.com/Product/Product.aspx?Item=N82E16820231166&nm_mc=EMC-IGNEFL102808&cm_mmc=EMC-IGNEFL102808-_-Memory-_-L0B-_-20231166)