3600 x2 Am2 Question...

T

trugbilddrachen

[H]ard|Gawd
Joined
Jan 28, 2002
Messages
1,288
Setup:
Abit Fatality AM2 A9n 32x 590 SLI
Brisbane 3600 X2
OCZ DDR 667 2x 1gb Gold plated HS.
Zalman CMPS9500 AM2
Neo HE 550
Evga 7600GT KO

Rignt now the system is at 2.437Ghz
HTT - 3x
FSB - 260
Multi - 9.5x
Ram CPU/6 ( can not seem to change that setting...)

CPU - 1.35v
Ram - 1.95v

Is the voltage going to kill this thing??? Ram or CPU... only upped it .5v's
to get it a little more stable.

Ram is running at 412mhz (824mhz)
Timmings are 5-5-15-2T

Anyone have experience with this set up...
I saw a coolermaster HSF looks like tear shape, black and copper..
Would this be better?

guru is showing temps of 37C and 47-48C at load.

Thanks
OC Noob...
 
You're fine, the voltage range of the chip is actually 1.25-35V. Anything up to 1.45V is safe as long as your temps stay under 60C. I'd see how far I can take the FSB at the voltage and then try raising it again.

Try a ram divider if that's holding you back, I wouldn't go above 2.2V on that. Try and get this chip to 3.0GHz.
 
I tried to find the ram divider for the board above and have not been able to find it.

Any help would be great thanks

John
 
The memory dividers are not going to be called "memory dividers." It's called maxmemclock on my Biostar AM2 board. I'm 99.9% sure a Fatality branded Nforce board WILL have mem-dividers or you're going to run into a roadblock soon with DDR667 rated RAM. Setting maxmemclock or your equivalent to 533 will give you CPU/7 and much more room to increase the FSB. I'm also running 1.47V with no problems at all, using cheaper cooling than your are and cheaper RAM but that's another issue.
 
The dividers are typically labelled as settings, i.e. DDR2-400, DDR2-533, DDR2-667, DDR2-800. The dividers vary with the CPU multiplier used. Use this chart to figure out final speeds (not updated for .5 multipliers, but you get the idea):

http://www.xtremesystems.org/forums/showthread.php?t=105798

Personally, I'd go as far as possible and keep your temps under 50C. I can push my Windsor X2 3800+ to 2.9GHz @ 1.6V with water cooling, load around 50-52C. Whatever doesn't make you nervous though. If you experiment you will hit a wall of diminishing returns. I can get to 2.5GHz @ 1.35V (stock) and 2.7GHz @ 1.45V but 2.8GHz requires 1.55V, etc.
 
Thanks for the input.... I am going to try to OC some more later today.
Will keep you posted.

Thanks
John
 
Rignt now the system is at 2.708Ghz
HTT - 3x
FSB - 300
Multi - 9.0x
Ram CPU/6- Ram is running at 902Mhz.(451Mhz)

CPU - 1.35v - Guru shows 1.36-1.38v
Ram - 2.10v - OCZ Max is 2.2v +- 10%

So far stable but have not tested... idle temp is at 34C not sure what the max is.

Later today i am going to try to drop the ram divider to CPU/7 and up the FSB.

Keep ya posted.

THanks again.
 
Do some stress testing before you keep bumping up the speed :) A lot of settings will post and boot Windows fine but doesn't mean much if it crashes as soon as you start stress testing.

I'd be surprised if you can go much further at stock voltage and prime/orthos stable, but maybe you just got lucky and just got a really good chip. From what I've seen from others and my own Brisbanes, I can't get past about 2.6-2.7 without bumping the volts.
 
1:FATAL ERROR: Rounding was 0.5, expected less than 0.4

System was still stable no lock ups?? Is this commen, i also have Vista if that matters???

Thanks Again
John
 
well the cpu stree test at the bottom shows no issues???
Could the ram be to high? 900Mhz from 667??

Thanks
John
 
trugbilddrachen said:
well the cpu stree test at the bottom shows no issues???
Could the ram be to high? 900Mhz from 667??

Thanks
John
Click to expand...

First you'll want to use Memtest86 to test your RAM for stability at whatever overclocked speed you have it on. If it isn't stable at what you have it set for, you may need to up the voltage, get a fan on top of the sticks, play around with the timings, run a divider, or any combination of those things.

Then you'll want to run Orthos overnight (at least). If it fails at any point (assuming you have your RAM stable at this point), you'll need to either up your vcore, or lower those temps.

Here is an excellent RAM overclocking guide, and here is an excellent K8 overclocking guide. Both of those guides will show you how to find the individual maxes of each piece of critical hardware (your motherboard, RAM, and CPU) and then combine the settings at the end to reach your maximum stable overclock.
 
I will run memtest...

The CPU temp is at 51 max, the case sits at 35 max.
Thanks for the guides already have them printed.

John
 
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