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Discussion Starter · #1 ·
My OCed comp at the sys Spec. below
this is my DDR SDRAM
http://www.newegg.com/Product/Produ...N82E16820145500
I think it use Promos chip

I've OCed like this: FSB:240MHz
1/ Didn't change the bandwidth (DDR/FSB:5/6) :--->srill run 200MHz
2/OCed the timming of my DDR SDRAM in DFI nF3 UT BIOS like this :
CPC: 1T
tCL : 2.0
tRCD: 3
tRAS: 7
tRP : 3
tRC : 10
tRFC: 12
tRRD: 2
tWR: 2
tWTR: 1
tRTW: 1
tREF: 3120
tWCL: 1

everything elses of timming I set at Auto (no change). Vdimm at stock
this passed the OCCT Stability test,...

Is my RAM timming OK ??
I wonder if I can OC the bandwidth more from 200 MHz ??
 

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you'll have to try it... run memtest86 to test your RAM for stability
 

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i have the same model of ram but in 2gb version i overclock very easy
__________________________________________*
rigg* ASUS A8N-SLI MB/AMD X2 3800; WD 250GB SATA2; ASUS DVD DRIVE DUAL LAYER; 2GB DDR 400 CORSAIR CAS(2.5-3-3-6)xms version; eVGA GeForce 6800 GS 256MB CLOCK(1.1GHZ)
NZXT LEXA W 500WATT PSU;best case ever
 

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Quote:


Originally Posted by Remonster

Set your RAM on a 1:1 divider (may be called 1:1. 200 or 400 in your BIOS)

HMMM I don't think you will get that RAM running at 240MHz on those timmings...actually I am sure you will not .

cheers
 

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The corsair xms series was built to overclock the operating frequency with lower CAS LANTECY
__________________________________________________ ___________*

I know because i have the corsair xms series 1*2gb overclocked it at
cas(2.5-3-3-6) and staying at default latency its operating frequency is 240mhz it is possible.
 

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Discussion Starter · #10 ·
thx for helping but..my RAm use Promos chip so.. i dun think it can run @
240MHz


however I try to set it @ 2.5-3-3-7-10-12 and stock speed 200 MHz
 

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Quote:

Originally Posted by binary_sandman
The corsair xms series was built to overclock the operating frequency with lower CAS LANTECY
__________________________________________________ ___________*

I know because i have the corsair xms series 1*2gb overclocked it at
cas(2.5-3-3-6) and staying at default latency its operating frequency is 240mhz it is possible.
If you are reffering to my post. You are mistaken and incorrect.

We are referring to..this RAM. As you can see it is 2x512Mb DDR400 with 3-3-3-8 at 2.60v. and use Promos A IC's I do believe.

To say that you could get it to run at 240MHz with any sort of decent memory timmings is just plain incorrect.
I should add we are talking about the RAM speed not the core clock ie running at a 1:1 ratio.

Further more I have some CORSAIR XMS TWINX1024 3200C2 and it starts to get flaky at 220MHz on 2.8v at 2-3-3-6 . Thier best is the TCCD XMS TWINX1024 3200XL

cheers
 

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Discussion Starter · #12 ·
Thx for your advice...
I've tried to get this speed by setting the divider to 200 and 180---> unfortunately the result is too bad
@ 200(1:1) : crashnwhen enter window
@ 180(9/10): can't pass the OCCT test
please help me to get higher speed ? do i need to add more vdimm (2.7)? can my RAM run at this vdimm ??

thx so much
 

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Discussion Starter · #14 ·
After taking risk by adding the vdimm to get 220 MHz at 2.7 V

WOW...I could even pass the OCCT test
... but that was the last time I saw my windows XP because on the next restart I got nothing else except black screen (OS didn't boot )!!!!!


ofcourse when I tried 240 MHz by 1:1 divider ----> worse result, BSOD !!!

please help !!!!!
 
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