Bought DDR 566

[BTRY B 529th FA BN]

Hello. I recently bought some DDR 566 and it finally came in. I will be using it in my AMD machine. In my mobo bios settings, I have the option of running the divider options are 100, 133, 166, 200, 216, 233, 250 I am looking to see if i get more performance by raising the fsb to 255, multi @ 11, that gives me about 2805Mhz. That would of never been possible on my old memory without Prime errors. My question is do i want to keep the divider at 200 or raise it to 250? I think 283 fsb would be 1:1 right?

 

[myocardia]

There's two different ways to go about it. You could do what I would do, and leave your RAM divider at 200 Mhz, which is 1:1, and lower your CPU multiplier to 10x, and raise your HTT bus to ~280 Mhz. Or, you can lower your CPU multi to 11x, and experiment with the slightly higher RAM dividers, like 216, if you think your RAM may overclock some (past DDR 566). The easiest will also get you the most performance, though, and that's 1:1, the way I would do it..

 

[BTRY B 529th FA BN]

So far things have been stable at 255 fsb & 11 multi running prime95 I've tried 280x10 and I keep getting errors even with adding voltage across the cpu, memory, and north bridge. As a matter of fact, im running prime as I am making this reply. O, btw, i even tried lowering the HT to 600 and still no luck. I think if this board has 8phase pwm, it'd probably run stable.

I may try the 216 divider and see how that goes. Thanks,

529th

EDIT: I'm gonna try and lower the multi and see if where my limit is.

 

[myocardia]

You know, you may just have a chip that doesn't like high HTT. I've got an A64 4000 (single core, Skt 939), that isn't stable @ 250 Mhz HTT, with any CPU multi, even 5x. But I used to have an Opteron 170 that would do 345 or 350 easily, and could do 310, with my TCCD @ 1:1, which is much harder than 350 with the RAM on a divider.

BTW, in case you didn't already know it, you don't gain much at all by having a higher HTT. CPU speed is what counts, and having both your RAM & HTT above 250 is going to perform nicely.