Official GSkill 1gb-GH pc3200 2-2-2-5 info and results

[mad mikee]

Usually vdimm will be overvolted .5 - 7 volts for a given setting, so for example 3.1 = 3.17 real (go search for the dfi volt readout points so you can measure yours w/ dmm and know what it is for sure).
The new biosi allow the '+.3vdimm below 3.2' option below vdimm selection.
So if you're set @ 3.1 and enable the +.3, you usually end up w/ about 3.2 Vdimm. Turning that off and going to 3.2 will get the 3.27 probably.

I've been upping mine slowly (I limit myself to 3.3 Vdimm on general principle ) but I am up to 247 or 248 x 1.49vcore 3.2vdimm(?)(I fergit ).

Next time I reboot (over teh weekend) I will post my current settings here. (These gotta run OCCT w/ 900+ meg selected to test for 12+ hrs b4 I move on).

I got some wicked memtest results w/ TCCD and a venice on another machine so I GOTTA try on here and see if I can do it again!

[Jack]

Usually vdimm will be overvolted .5 - 7 volts for a given setting, so for example 3.1 = 3.17 real (go search for the dfi volt readout points so you can measure yours w/ dmm and know what it is for sure).
The new biosi allow the '+.3vdimm below 3.2' option below vdimm selection.
So if you're set @ 3.1 and enable the +.3, you usually end up w/ about 3.2 Vdimm. Turning that off and going to 3.2 will get the 3.27 probably.

I've been upping mine slowly (I limit myself to 3.3 Vdimm on general principle ) but I am up to 247 or 248 x 1.49vcore 3.2vdimm(?)(I fergit ).

Next time I reboot (over teh weekend) I will post my current settings here. (These gotta run OCCT w/ 900+ meg selected to test for 12+ hrs b4 I move on).

I got some wicked memtest results w/ TCCD and a venice on another machine so I GOTTA try on here and see if I can do it again!

The most right pin in the dimm slot is the Vdimm.
I plugged one wire of the multimeter in a molex and the other one in the dimm slot.
With bios 510-2 and the +.3 option on, Vdimm overvolts 0.9V.

[Agent-JCDenton]

what is the highest FSB without void the warranty? (so 3.1V i think)
latency: 2.5-4-3-8 or something else? but 2.5..

Thank you!

I just managed to get the GH to 280Mhz @ 2.5-4-4-8 with 3.45v, I'm sure others can get them to go higher. Thats almost the same timings as my OCZ Plat Rev. 2s. I'll try see how far i can get with 3.1v. Will post a pic shortly.

[jcniest5]

I just managed to get the GH to 280Mhz @ 2.5-4-4-8 with 3.45v, I'm sure others can get them to go higher. Thats almost the same timings as my OCZ Plat Rev. 2s. I'll try see how far i can get with 3.1v. Will post a pic shortly.

Agent, can you provide some screenshots of your setting and let me duplicate it/them to see if I can OC my GH memory as well? I got my RMA back from OPB, but still not able to OC it to anywhere near what it can do according to many users' success story.

I would like a screenshots of your A64Tweaker, SmartGuardian and any others that you think will help me.

Thanks...

[Agent-JCDenton]

Agent, can you provide some screenshots of your setting and let me duplicate it/them to see if I can OC my GH memory as well? I got my RMA back from OPB, but still not able to OC it to anywhere near what it can do according to many users' success story.

I would like a screenshots of your A64Tweaker, SmartGuardian and any others that you think will help me.

Thanks...

Try these: 255 @ 3.3v using the vDimm mod and relaxed timings.



I'm trying really hard to get 280 stable at 3.5v i'll post pics if i get good results. so far i'm only memtest stable, superPi & prime fail at the moment.

[gulp35]

How much of a difference is there between Cas2 and CAS 1.5?

[ben805]

How much of a difference is there between Cas2 and CAS 1.5?

Zero for me, I've ran pcmark04, everest, superpi, sandra, aquamark, 3dmarks and didn't gain squat to go from 2 to 1.5, I'd also compare 1.5-2-2-5 to 2-2-2-6 on my Redline and didn't see any difference either!

[Agent-JCDenton]

Zero for me, I've ran pcmark04, everest, superpi, sandra, aquamark, 3dmarks and didn't gain squat to go from 2 to 1.5, I'd also compare 1.5-2-2-5 to 2-2-2-6 on my Redline and didn't see any difference either!

I agree, there's hardly much difference between them, even when it comes to stability.

[Onepagebook]

Agent, you are doing the very good job, I gotta try that vmod.

3.4g pi 1m


3384mhz, 1.58v same setting pi8m..


wanna see 32m?no prob!!

[gulp35]

So 1.5 CAS is just so you can say stuff like : OMG!!!11!! L00K @ m3 i beat teh 1337 CAS2 : if you like *I would*

[Agent-JCDenton]

Nice clocks opb! When are u gonna get the cascade up and running? 4Ghz doesn't look impossible with that chip

The vDimm mod is one way of avoiding the 5v rail and damaging memory as some have experienced. 255Mhz @ 3.3v is handy for those with X11 multi to test thier CPUs at 2.8ghz 1:1 and still keep the memory in the "safe" zone in terms of voltage.

So 1.5 CAS is just so you can say stuff like : OMG!!!11!! L00K @ m3 i beat teh 1337 CAS2 : if you like *I would*

Errr...yeah

[Dumo]

Heres...

[Dumo]

270 out of the box...

[SIOUX]

Nice there Dumo. How much V for the 270 ????

[Dumo]

Nice there Dumo. How much V for the 270 ????

3.6V...
Heres 4x512 @ 270/2T and 3.6V with GH and Redline combo...

[187(V)URD@]

nice dumo

[Agent-JCDenton]

Nice clocks Dumo!

I'll be getting my Redlines back soon (RMA - Burnt on the 5V rail) and i'll try see if i can get anywhere close.

Zero for me, I've ran pcmark04, everest, superpi, sandra, aquamark, 3dmarks and didn't gain squat to go from 2 to 1.5, I'd also compare 1.5-2-2-5 to 2-2-2-6 on my Redline and didn't see any difference either!

I came across Geil's upcoming Ultra-X memory on Anandtech today - Rated at DDR400 1.5-2-2-5

"The new DFI nForce4 boards support CAS 1.5 as a BIOS choice, and possibly a few other high-end boards. CAS 1.5 sounds impressive, but AMD tells us that they do not support CAS 1.5 in their on-chip memory controller."

So CAS 1.5 is not of much use , not for the time being anyway on AMD, but I can't help wondering if/when they'll support it. I sure hope Geil know what they are doing tho.

[ianocean]

I came across Geil's upcoming Ultra-X memory on Anandtech today - Rated at DDR400 1.5-2-2-5

Got these babies in my orange memory slots ATM running them at 260 Mhz 1.5-2-2-5 3.3VDimm.BTW the memory is 2Mhz faster at CAS 1.5(272Mhz maxed stable 3.6v) than CAS 2.0(270 maxed).May be is CAS 1.5 optimized

[TEDY]

really not fair ...when this GEIL is gonna be available ?

[Agent-JCDenton]

Got these babies in my orange memory slots ATM running them at 260 Mhz 1.5-2-2-5 3.3VDimm.BTW the memory is 2Mhz faster at CAS 1.5(272Mhz maxed stable 3.6v) than CAS 2.0(270 maxed).May be is CAS 1.5 optimized

260Mhz 1.5-2-2-5 @ 3.3v is impressive . I wanna see how the 2x512Mb modules will perform. How about benchmarks results between CAS 1.5 and 2 at 260?

[ianocean]

Running SuperPi 1M CAS 1.5 and 2.0 -exactly same condition and processes
running
1.5


and 2.0



1.5 is nanoseconds faster

[Jack]

Nice results Dumo
i got 270MHz out of the box with my Redlines

But what bios are you using?
Which memory slots (yellow/orange)?
And what dram and data drive strength settings?

Thanks

[charlie]

G.Skill BH-GH work well on Dothan, too!! The BH5-UTT will run on the i875/i865 chipset whereas the CH5-UTT will NOT.

[Agent-JCDenton]

G.Skill BH-GH work well on Dothan, too!! The BH5-UTT will run on the i875/i865 chipset whereas the CH5-UTT will NOT.

Another impressive result charlie
what cooling are you using on the Dothan?

[charlie]

Another impressive result charlie
what cooling are you using on the Dothan?

That's a -65C chilly1 AUTOCASCADE.

Unfortunately the GBGH topped out at 255ish on the i875, so I had to run the 13x multi, giving only 238fsb.