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GeIL PC2-6400 3-3-3-8 @ 1200 4-4-4-12

post #1 of 8
Thread Starter 
A brief look at some new DDR2 Low Latency modules from GeIL.

These are their PC2-6400 CL3-3-3-8 2.4v. The Chips are believed to be D9 type which are having some great success for other modules available, with these GeIL modules being available in-store shortly.

The packaging is smart and adequate for delivery, but this a very different from their earlier DDR Ultra-X series which had very sturdy packaging with foam inserts. The HS are a nice bright Orange and appear to be securely fixed to the chips by thermal tape.

Note the mention of support for the Asus M2 MB's so these may well do great on the AMD AM2 CPUs which are Bandwidth kings.




The simple test setup is as follows: Asus P5B Deluxe MB, X6800 CPU, Silverstone ST75ZF PSU, XFX 7950GX2 and a simple H2O CPU cooling running a series of Benchmarks. The actual times and results are not that important but rather the comparison between them based upon timing or speed changes.

vMODs: for these tests the vDimm voltage mod was applied to enable > 2.45v.


BIOS: There was a BIOS change during the testing from 0706 to 0711 with the result that 0711 allowed for a bit more stability but also stopped the MB shut-down & restarting for each BIOS change, a saviour on HW, Pumps and compressors.

Below is a summary of the results to date and will be updated as further testing is completed. It is intended that comparison will be made between these modules and the GeIL PC2-8500 CL5-5-5-15 2.4v.



With the extra vDimm these modules can do a bit more when pushed a little... 450x7 1:1 3-3-3-8 @ 2.6v CPUz



Under BIOS 0706 it they were not able to run dual Pi32M run at 450x8 ... and it was thought that this maybe due to load temps however under BIOS 0711 they restested good for 450x8 3-3-3-8.

Now onto some CAS4 settings ... 400x9 2:3 | FSB600 @ 4-4-4-12 : 2.6v. These are great modules with excellent bandwidth.


CPUz Validation

And Bandwidth jumped a bit more when running 400x10 just the H20 cooling is not able to keep it stable enough for these speeds but will retest again once under the Vapo again.



And it could be that with some tuning it will go a bit further ... look out for them they are well worth considering for your next upgrade.

Thanks to GeIL for making them available for testing.

Now the other vMODs are calling out to be completed before being returned back to it's IceBox

EDIT:

Part Numbers:

PC2-6400 C3-3-3-8 : GX22GB6400PDC 2.4v - P/N (Unknown as these are ES modules, will try to source from factory what is the P/N is to be.)

PC2-8500 C5-5-5-15 : GX21GB8500PDC 2.4v - P/N2360
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post #2 of 8
Nice those look like they will preform very well.
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post #3 of 8
2.4v will push ram to very high speeds.

Case in point: DDR2 1038 CAS 3-3-3-8 but @ 3.4v
post #4 of 8
Quote:
Originally Posted by Nasgul
2.4v will push ram to very high speeds.

Case in point: DDR2 1038 CAS 3-3-3-8 but @ 3.4v
HOLY CRAP!!! 3.4V on DDR2???

Very nice review, ncsa. I'd consider them, but I'm betting they cost an arm and a leg and $300 plus shipping and handling.
post #5 of 8
Well before I pick up anything I want your opinon on this RAM vs. G. Skill HZ.
I'll be active cooling either way and money is no option... so what's up?
    
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post #6 of 8
Very nice Ram
I have the geil PC6400 4-4-4-12 ones and have them at 880Mhz 4-4-4-12 at 2.1v could probably push them further though
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post #7 of 8
Quote:
Originally Posted by Transonic
Well before I pick up anything I want your opinon on this RAM vs. G. Skill HZ.
I'll be active cooling either way and money is no option... so what's up?
I'm not even sure if the Geil RAM is avaiable here in the U.S. yet but I'd definitely will say the G.Skill will be a pretty good choice as well. Here is some review on the G.Skill HZ: http://www.xtremesystems.org/forums/...d.php?t=101762

So far mine are doing 4-4-4-8 @ 1000mhz on a 2.2v.
post #8 of 8
Thread Starter 
These modules are great for their rated speed and OC well too... plus have some great Bandwidth but as always it will come down to matching the new rig components and what the modules are expected to do day by day and how hard you are prepared to push them. Either way, GeIL / GSkill I like them both.

The G.Skill's have many flavours so be sure to choose the right ones, they have some good modules out but as with any module be sure to see consistent results and the operational parameters being tested under.

The GeILs appear to go up around the 530 mark 4-4-4-12 at stock volts - 2.45 but these are aimed at the CAS3 market as are other manufacturers.

If the GSkill are PC2-8000 then that will be a form of guarantee as they must operated at advertised speeds anything else is a bonus. Then compare the prices.

You may also find that pending the OC of the new rig.. you need greater Bandwidth so this is where either running C4 @ > 500 or C3 @ <500 maybe better.. the MB may also set your limits on the 1:1 aspect as well.


Quote:
Originally Posted by Transonic
Well before I pick up anything I want your opinon on this RAM vs. G. Skill HZ.
I'll be active cooling either way and money is no option... so what's up?
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