Mushkin ram - 3200 or 4000?

I have to decide between the new mushkin cas 222 3200 and the mushkin pc4000 (3-4-4-8). i have 2.6, IC7 (2.8v max VDIMM), sp94

Depends on your overclock. If you want your fsb to go more than 230 (2990) you will need to get the PC4000.

go with the BH6 and go 5:4.

I concur, if you can do the 2-2-2 dance, do the 5:4..it'll be easier on the CPU

i heard that the bh-6 needs lots of voltage to perform nicely
is 2225 : 225fsb possible with 2.8v ?

dont use 2-2-2-5, its performance is identical if not worse than 2-2-2-6 and it also is more unstable.

It might do it, I really reccomend you vmod your board, BH5/6 ram is terrific using 3.3V.

that's for certain, but i'm not sure i have the guts for it

the bh6 will work fine up to 200-210 at 2.8v. but heck thats all u need at 5/4

my experances so far (mushkin PC3500 2-3-3-6):

2.8 @ 200 fsb 1:1 [ddr400] (underclocked ram) = good
2.8 @ 217 fsb 1:1 [ddr433] (stock ram speeds) = better
2.8 @ 250 fsb 5:4 [ddr 400] (underclocked ram) = best

I was puzzled to find out running @ 3.5 ghz/ddr400, my memory bandwidth performed better than running ddr433 [217 1:1]

(i dont have the numbers handy to display @ this time.)

I chose PC3500 because I wasn't sure my CPU would hit the magic 250, so at least i'd be around 220 @ 1:1. but now I wish I went with PC3700 or PC4000

And, I didn't feel I needed to spend an extra hundred $$$ for 5% extra ram performance