troublesome RAM OC

 So yeah I am still running on an ancient socket 939 system for now. If some of you recall I lost my motherboard a little while back so I bought a new motherboard very similar to what I had and also a new cpu. I put everything together and tired my luck at overclocking. I figured the results should be somewhat similar to what I had previously but was curious to see how the difference in the cpu's was. I wasn't even going to see what my max was for my RAM cause I knew what it was from on the previous board and well the boards are very similar but I did anyway. Thats where I am running into the problem. I can't even get the ram to run stable at the manufacturer's specs let alone get it to where I had it oc'd before. On my other board I had it up to 267mhz stable now I can even get it to 225mhz stable. I know ya'll need specs so here they are.

Original system

athlon 64 4000(stock 2.4) had it oc'd to 2.93 I think.

Asus A8N32-SLI Deluxe

corsair 2GB DDR500.

New system

athlon 64 x2 3800

Asus A8N-SLI premium

corsair 2GB DDR500.

The ram ran at 267mhz before at 2.7v with 3-4-4-8 timings.

I can't even get it stable now for 225 which is well within what it should run at anywhere from 2.6v-2.9v with the timings as loose I can take them.

Just to verify that I am not an idiot and I did everything right I underclocked the cpu by lowering the mult from 10 down to 7.

I changed the HT mult to x3

I left the cpu/ram ratio at 1/1.

I even raised the vcore to 1.45 just in case and still nothing.

With nothing overclocked though it runs prime95 stable though. SO why is the ram acting so funny with this board which is so similar with the other board I had?

That's a bit odd. How hot is the ram getting? maybe they dont get enough air now. That or the new mobo can't keep the voltage up.

I bet its the NB and voltage issue... how far over stock voltages can you run? I assume you are trying for a 1:1 ratio...

 It will only allow me to bump the chipset and HT volt up 1 notch. You think I should try that and see what happens. I don't think it's a heat issue as there is plenty of air moving through this case and everything else is relatiely cool. besides 2.7 volts isn't alot as far as increasing voltage for the memory. I just know thats what is was stable at before on the other mb. thats why I tried so many different volt settings to see if it made a difference.

bump it a notch and then see if it boots