mattlock

Yes, I just want to see if the BIOS still shows RAM as quad pumped when set to unlinked. If not, then continue your OC (using the manual configuration) until you reach your desired stable OC.

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Matt

Aus_Karlos

Ok this is what it says.
BIOS

FSB - Memory Clock Mode = Unlinked
X FSB - Memory Ratio = Auto
CPU Host Frequency = 333mhz
X Actual CPU Clock = 332.8 mhz

Memory Frequency = 667
X Actual Memory Clock = 665.6mhz

POST Screen:
Memory Clock is: 667mhz
Dual channel 128-bit
bla bla bla

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mattlock

Looks good. If you want to maintain the 1:1 ratio just raise the two settings at the same time, and be sure the Memory Frequency is double the CPU Host.

Happy OCing.

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Matt

Aus_Karlos

Ive now lost a huge chunk of my RAMs performance., Ive set my OC back on with a CPU clock of 345mhz but have adjusted my RAM clock to keep a 1:1 ratio which is now 691mhz.
Ive now lost 5ms in latency, 200mb/s read, 180mb/s write and 300mb/s in copy.
I really want to get my RAM back up to 800mhz which is its default.
Ive also lost 2000mb/s in memory/Front Side Bus bandwidth, it was 12064mb/s its now 10064mb/s

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mattlock

It's not written in stone that you have to run at 1:1. You can set the Memory Frequency to 800mhz (DDR800) and leave the CPU Host Frequency at 345mhz.

Another thing, if you want to maintain your OC you should disable EIST in the BIOS, and manually adjust your Vcore as need to reach a stable OC. Leaving EIST enabled has been known to cause instability in OCed systems.

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Matt

linderman

at mattlock has stated its not imperative that you run at 1:1 ratio most systems do seem to run their best performance when set-up like that, but it not craved in stone

besides with 1333mhz FSB systems they have the ability to outrun the speed of DDR2-800 for the first time, so many uers will be unlinking the cpu clock / ram clock


enjoy

P.S. you got a real nice OC going there Mattlock >>>> well done

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IF you want or have a high end video card; you should be thinking high end PSU / SEASONIC

mattlock

Thanks Linderman and right back at ya..... 4-4-4-12 @ 850mhz.....SaaWEEEET!!

What's your Vdimm?

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Matt

linderman

vdimm is 2.1 with two sticks I tried adding two more but I couldnt get it to fly past about 830

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IF you want or have a high end video card; you should be thinking high end PSU / SEASONIC

Aus_Karlos

Thanks for all your help guys it has been great. Ive managed to get a stable OC of FSB @ 350mhz (2.8ghz) and a RAM of 691mhz (POST reads 700mhz) and my performance is much better than before even on the RAM side. Ive also change my voltages, CPU is now at 1.25v and RAM is at 2.0v.
Ive ran Prime95 for 3hrs with no errors, core temps only got to 52c and rarely spiked to 54c.
Im going to get an ASUS Arctic Square tomorrow so hopefully i can OC upto 3ghz. I know my CPU can only support 3.2ghz.

Just one more question. How much performance gain would i get if i changed my timings to 4-4-4-15. Would this also offset the OC if so what would need readjusting.

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Aus_Karlos

Hey guys ive got an OC of 2.88ghz and RAM at 720mhz.
My CPU voltage is stable at 1.28v and RAM at 2.05v
Im trying to get to 3ghz with my CPU but it seems out of reach. With Prime95 my temps hit 55c and stay there for as long as the test (@2.88ghz).
Have you got any tips to keep it cooler.
I have a Thermaltake Armor (Full size) and lots of fans, the temp inside the case is room temp, HDDs are about 30c the hottest is 35c as its on the top of the others.

When i play games however my CPU temp rarely hit 50c even on full load. (Based on playing Crysis for 3hrs) So i was thinking of OCing to 3ghz and just testing it on a game and not use Prime95 as i know that would make the temps go to about 60c.
Is that wise...

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mattlock

Are those temps with the new cooler? Did you use Arctic Silver? If so, do a burn in with Prime95 (let it run for 24hrs). Then use your PC at the current OC for a couple of weeks to let the AS5 setup and then push your OC higher. You should gain a couple of degrees of cooling by doing this.

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Matt

Aus_Karlos

They didn't have the Artic Square in stock at the moment but im using AS5. Ive currently got a Silent Knight cooler but ive been searching and ppl say that the Arctic is a lot better which is why i want one.
Ive got a load of different sized fans around, i was going to use them and attach them to parts of my M/B to keep the whole thing cool see if that made any difference.
I was going to use one for my RAM as even before i OCed i couldn't touch my RAM after 20mins.

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mattlock

Quite honestly, there are better choices than the Arctis Square available.

http://www.frostytech.com/articlevie...id=2124&page=5
http://www.elitebastards.com/cms/ind...1&limitstart=2
http://www.tomshardware.com/2008/02/...08/page16.html
http://www.tomshardware.com/2008/02/..._2/page10.html

The Cooler Hyper Master TX2 looks to be a very good budget entry. Half the weight and size of the Thermalright IFX-14 and very close in max temp (only a 5° difference with fan on high, 10° on low). It runs right with the 2 H20 setups listed in the THG chart. I don't like the pushpin mounting though.

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Matt

Aus_Karlos

Thanks for those bits on info, but most of them i would have to import from a different country. And that would be expensive....
However ive moved 3 HDD's from the front of my case to the top back, overall my case temp has dropped by 10c (Its allowing cooler air into the case). and my cores have dropped 2c aswell. The only downside is now that my HDD's are about 8-10c hotter. My hottest is 42c but thats within reason. I will try and OC to 2.94ghz see if the temps change at all.

My case is fully supported by Liquid cooling, im thinking if the temps continue to climb before i reach my desired OC, would it be worth looking into or is it a waste of money.

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