Kakaroto G.SKILL PC4000 2GB HZ testreport

[kakaroto]

Just received two kits of this RAM. This ram is the extreme version of the 2GB HS which is rated at PC3200.

Here some official specs:

* Package : 2048MB kit (2x1GB) dual channel pack
* IC Spec : Samsung
* CAS Latency : 3-4-4-8 (PC4000)
* Test Voltage : 2.6~2.8 V
* PCB Board : 6 Layers PCB
* Speed : DDR 500MHz (PC4000)
* Type : 184-pin DDR SDRAM
* Error Checking : Non-ECC
* Registered/Unbuffered : Unbuffered
* Quality Control : Comprehensive rigorously tested in pair at dual channel environment
* Warranty : Lifetime

I tested two kits to see if the the OC results are similar.

Here some pics:






This RAM also uses SAMSUNG UCCC IC's.

I tested on two CPU's, a Venice 3000+ week 17 and a week 28 X2 3800+. Both average overclockers with at least memorycontrollers that can handle DDR600 with MP9x.

Venice system:

-DFI nF4 ultra-D BIOS 623-3 (official site bios)
-Asus 450Watt

X2 system:

- DFI nF4 SLI-D BIOS 623 (Factory bios)
- Tagan 480W-U22 2Force

DDR500 3-4-4-8 1T stock tests

3Dmark01, 3000+


Everest, X2 3800+


SPI 32M, X2 3800+


Lets see what it can do when overclocking.
What I have noticed is that this IC doesn't like high voltages. The sweetpoint is 2.5~2.65v.

DDR540 3-4-4-8 1T 2.54v~2.58v

SP2004, 3000+


SPI 32M, 3000+


DDR556 3-4-4-8 1T 2.54~2.58v

SP2004, 3000+


SPI 32M, 3000+


Memtest86++ STD, 3000+


Here 280Mhz 3-4-4-8 1T at same voltage!

SPI32M X2 3800+


3Dmark01, X2 3800+


I also can memtest86++ 280MHz at 3-4-3-8 1T at the same voltage, but SPI 32M craps out.

Memtest86++ STD, 3000+


I think the average OC of this memory lies between 270~280 3-4-4-8. I see guess2098 with 3-3-3-3 OC, unfortunately I cannot achieve this timings on both CPU's.

An important setting when going over 250MHz, is setting Read to write Delay on 3 or higher, 2 will nogo.

Kakaroto,

[WiD26]

Great results kakaroto!
I've been waiting for these sticks ,do you know when they will be in the shops in NL or B?

Edit:I can pre-order them with B@W for 279€ (great price )

http://www.bytesatwork.be/shop/produ...cat=474&page=1

[WulleWuu]

Ähm.. That SuperPI isnt correct.. U must let calculate 2 times SuperPi.. Every CPU must calculate one PI... When i try my ram it runs always, when i only test one of the 2 cpus.. but both of them.. no.. So plz make a dual superpi, then it is correct and then it is good.

[kakaroto]

Ähm.. That SuperPI isnt correct.. U must let calculate 2 times SuperPi.. Every CPU must calculate one PI... When i try my ram it runs always, when i only test one of the 2 cpus.. but both of them.. no.. So plz make a dual superpi, then it is correct and then it is good.

Most of the time I tested on the Venice 3000+, which also can run 280Mhz 3-4-4-8 1T, no need to test dual SPI on X2 3800+ to show stability it is even little slower then on a single core.
But if you want a dual SPI 32M i can do this when i have time, I am now running 24/7 @280 3-4-4-8 1T.

[WulleWuu]

Nice.. but my LEs dont want to run @ 250 Mhz with 2,5-3-3-7.... Do u have some ideas kakarote? I already tried ur guide.. but without success.. I need ur help, plz

[kakaroto]

Nice.. but my LEs dont want to run @ 250 Mhz with 2,5-3-3-7.... Do u have some ideas kakarote? I already tried ur guide.. but without success.. I need ur help, plz

Please PM me or post at the TCCD guide topic? This is off-topic. I will help you.

[GAR]

i just baught these sticks from newegg, 280 shipped with tax, hopefully i can full off atleast 264 with mine, i wanna use 264x10 with my dual core, and what drive strength did u use, and data drive....

[Vapor]

Good stuff! How about some 3-3-3-x and some more volts?

[althes]

Wonder howe far rhey will go at 3338

[guess2098]

kakaroto^^
560 3-4-4-8 is ~~~ wooow! mine does 556 3-3-3-8 but 560 = no go ^^
very nice oc

[kakaroto]

kakaroto^^
560 3-4-4-8 is ~~~ wooow! mine does 556 3-3-3-8 but 560 = no go ^^
very nice oc

hehe mine 556~560 3-3-3-3 = nogo

[5-Clicks]

nice results! have you tried more volts?

[anomalos]

Excuse if I interfere, i have bought the g.skill pc4000 2gb hz . But I have some problems to go above 250 mhz . I have tried many bios and timings, but the result does not change .
Could you help me?
[IMG][/IMG]

[IMG][/IMG]

Excused my English bad one.
thanks to all

[kakaroto]

Excuse if I interfere, i have bought the g.skill pc4000 2gb hz . But I have some problems to go above 250 mhz . I have tried many bios and timings, but the result does not change .
Could you help me?
[IMG][/IMG]

[IMG][/IMG]

Excused my English bad one.
thanks to all

what is your vdimm?

[bullit]

Kakaroto sorry to bother you again but i´m a proud owner os a HZ 2Gb kit and i would like to see a A64 picture os the settings you are using,please.I´m with a few problems in stabilizing above 250.

[Micutzu]

I'm sure i've posted this somewhere, but here it goes:

Optimal settings for high clocks
3-4-4-6-1T 2.8V
tRTW 4
Drive strenght 3weak (5)
Data strenght 1
tREF 1032
DQS increase 255

Clocks damn well this UCCC



I'll have the full BIOS setup for you tomorrow .

[Micutzu]

There you go, it is possible to tighten them a little though, especially on TRWT, Max Async and Read Preamble. These were random sticks and in no way handpicked/selected.

[bullit]

Thanks Micutzu you´re a pal

[Nocturno]

I can reach 290Mhz 3-4-4-8 2.6v. Maybe with a little tweaking i can get 295Mhz.

[hesky]

Excellent review kakaroto, nice touch testing 2 sets not just one.

ATM I'm split between these and the PC3200 HS sets, I've seen the HS sets manage 250 at CL 2.5. do you think these HZ sets will manage CL 2.5 at there rated speed of 250?

Cheers

[bullit]

Micutzu ,no go here even with your timmings i´m afraid de memory controller of my Opteron is a crap.

[Micutzu]

You're welcome . Testing was done with 704-2BTA BIOS on DFI nF4 rev.AD0 and X2 4800+ by the way.

[CapFTP]

Greets to magnifico...

Kakaroto....do you notice some improvement in lowering the voltage in such a modules you tested ?

I tested other UCCC (not GSKill) but stopped around 270....I think is in average...

[kakaroto]

Greets to magnifico...

Kakaroto....do you notice some improvement in lowering the voltage in such a modules you tested ?

I tested other UCCC (not GSKill) but stopped around 270....I think is in average...

Yes, 270-280MHZ is average. (3-4-4-8)
My experience with UCCC is that they like low voltages more then high voltages. Keep it at 2.6v and well cooled!
Even with those black heatspreaders, it still getting hot.

My 2GB HZ is now 4h prime large FTT (272MHz 3-4-4-8 2.62v) after putting an fan 90mm above the memory.

[CapFTP]

Yes, 270-280MHZ is average. (3-4-4-8)
My experience with UCCC is that they like low voltages more then high voltages. Keep it at 2.6v and well cooled!
Even with those black heatspreaders, it still getting hot.

My 2GB HZ is now 4h prime large FTT (272MHz 3-4-4-8 2.62v) after putting an fan 90mm above the memory.

interesting...I just had few time to test it during xmas vacation, but didn't test as I like and should have to retry lowering the voltage.

For sure they were well cooled with my 2x80 fan above...as alwayss test the ram...