need advice guys

my pc2-6400 ballastix 2x1gb will only do @ 2.2V 5-5-5-15 510 MHz and 4-5-5-8 430 MHz 2.0V
@ 2.2V only around 440 MHz 4-4-4?

i have 3 sticks as 4th stick went kaput by me (my fault, you don't need to know)
it still runs dual channel with 3x1GB
currently running 4-5-5-8 430 MHz 2.0V

the first kit now only 1 stick seemed more D9GMH as 4-4-4 2.2V around 500 MHz but the 2nd kit don't clock well so I have to make sure those are stable which sucks for my good stick, it possible 2nd kit don't have d9gmh?

p35-ds3r rev 1.0 and e6750
using F6 Bios

does new f7 bios have voltage readings and help vdroop?

e750 @ 430x8 = 3.44
1.45 vcore in BIOS actual is 1.392 load (default VID 1.35)
+0.1 G(MCH)

24 hours orthos blend/small ftt stable
8 hours memtest 86
and 3 hours OCCT
of course game stable

fsb wall is around 520fsb, anything I can do to get stable 3.6 GHz
I can get around 3.6-3.8 boot into windows but never stable with even high vcore settings.....even with bad oc kit i just higher timings

to get u idea of how far I can actually just boot up into windows here's a valid
(this is before when I just had 2x1gbGB kit that oc'd good, the kit where one stick went kaput and now making 3GB with other bad non seeming d9gmh kit)

http://valid.x86-secret.com/show_oc.php?id=248682


just vcore seetings I can't get cpu stable over 3.44, orthos/prime95 always fail
any help with vcore/ram/other voltages?
can new f7 bios show voltages and help with ram?