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Kingston pc3200 hyper x running at cas 2.5 instead of cas 2

T

thatguyant

Member
here's my system specs.

abit nf7-s ver.2
amd barton 2500 (oc'd to 3200)
(2x512) kingston hyper x pc3200 (part #khx3200ak2/1gr)
xfx 5700 ultra
wd250 gb hd

the specs say it should run at 2-3-2-6 timings but even when I try to manually set to timings to just cas 2 it won't even start up. anyone having similar problems?
 
What's your VDimm (memory voltage) set at in the BIOS? High performance memories require high voltage to reach advertised timing.
 
i didn't know i would have to adjust the voltage speeds to reach the speed it's supposed to run at. it's running at the stock mobo voltage right now, but I can't tell until i reboot. any windows app that will let me see the vdimm?

funny thing is in cpu-z the ram is listed as only doing 2.5-3-3-8 at 200fsb and 2-3-3- at 166 fsb. those are way below specs at what this is advertised.

edit... vdimm setting is currently at 2.6v which the stock bios option. should i raise it higher? i haven't really overclocked ram before (eventhough it's not overclocking because it SHOULD run at cas 2 as advertised).
 
Originally posted by: thatguyant
i didn't know i would have to adjust the voltage speeds to reach the speed it's supposed to run at. it's running at the stock mobo voltage right now, but I can't tell until i reboot. any windows app that will let me see the vdimm?

funny thing is in cpu-z the ram is listed as only doing 2.5-3-3-8 at 200fsb and 2-3-3- at 166 fsb. those are way below specs at what this is advertised.
Click to expand...


CPUZ. Get it here.
 
Originally posted by: thatguyant

edit... vdimm setting is currently at 2.6v which the stock bios option. should i raise it higher? i haven't really overclocked ram before (eventhough it's not overclocking because it SHOULD run at cas 2 as advertised).
Click to expand...

What voltage does the manufacturer claim to support? This could be different from what your MB is defaulting to.
 
Originally posted by: thatguyant
according to kingston the voltage is 2.5 so 2.6 is actually above the spec voltage.
Click to expand...


Says here some Hyper x memory supports 2.7 volts.

Edit: Of course that's all 2-2-2 memory...oops carry on.
 
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