ASROCK Dual Sata II RAM speed problem

[voigts]

I have corsair xms 1024 twin c2p2 ram with an ASROCK Dual Sata II. I am about to upgrade to a AMD 4600, so I upgraded the BIOS to version 2.2. I ran A64 tweaker and CPUZ and found that my RAM is only running at 166mhz. I reflashed to 1.9 and still the same thing. I manually set the mem timings to the recommended 2.5-3-3-6 2T, tried 1T, etc., but whenever I set the RAM manually to 200mhz the computer will post, but will not go past that. I get no windows boot screen at all, just a blank screen. I tried using A64 tweaker within windows to change the setting to 200mhz, and it blue screened. Dual channel seems to be working fine, but I am at a loss as to why my RAM won't run at its rated speed. Any ideas?

[Driver]

Dimm Voltage @ high?

I think your Ram needs more juice

[Special_K]

you haven't said what the actual speed you are trying to run your RAM

what is the FSB?

OCWBeta2 was the best bios IKHO

[voigts]

I was just trying to get my RAM to run at stock speed of 200mhz.

Try 1 stick at-a-time....

Twice now my Dualie has eaten a stick of memory and I was getting the same thing as you. Hope yours are OK....

Man if this isn't weird. I tried your suggestion and ran them one at a time with manual timings at 200mhz with voltage set to auto (maybe it should be on high?) in slot 1 and then 2. It booted up fine both times at 200mhz in single channel. I put them both back into slots 1 and 2, and now it boots fine in dual channel at 200mhz. Go figure this one out? At least it is working now at 200mhz (knock on wood).