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1st OC attempt

post #1 of 33
Thread Starter 
o.k. so here is my first attempt at overclocking. Stock rig is x2 4800+ brisbane @2.5ghz. Here are my results so far.

I'm at 3.0ghz. Ref clock is 240mhz, ht is 4x. I'm still at stock volts 1.312. I got to 235mhz/ht 5x with no problems. When I tried 240mhz/HT 5x the system wouldn't boot. I reset cmos and then tried 240mhz/4x and it booted fine and has passed a short test of Orthos. I haven't messed with the voltage or memory yet. My memory is stock at 4-5-4-11-24-2t, 2.1v. With my current overclock the memory is running at 428mhz.

My 3dmark06 results are 10449, up from 9100ish on stock settings. Cpu temps are 27*idle to 47* under load (both orthos and during 3dmark). My GPU temps are 43* idle/63* under load.

I'm not sure where to go from here. I'm worried about my memory speed. Is it ok to have it keep increasing. From what I've read I should now continue to up my clock speed until unstable, then either lower HT or up voltage, but my mem speed is going to continue going up, is that going to cause a problem and how far is safe to push it. Also how are my temps and how far can I push them. I think the general opinion from what I've read is don't push past 55* under load.

I stopped where I am now because I don't want to start seeing funky colored smoke coming from my computer, so figured I'd get some advice before going further . I'd appreciate any input.

Oh. One other question. I have a difference of about 4 to 5* between cores, is that normal or should they be closer?
Edited by Steady65 - 5/17/08 at 12:08am
    
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post #2 of 33
Thread Starter 
O.K. figured a screenshot might be better than my rambling
    
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post #3 of 33
Just keep on doing what you're doing, proceeding methodically.

Do not worry about your machine emitting "funky colored smoke." Today's modern processors will throttle down first, or the machine will simply freeze, if you hit thermal limits. Unless you get truly reckless and send something akin to a lightning bolt through your processor in terms of voltage, you're not likely to see any pyrotechnics.

Good luck!
    
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post #4 of 33
Thread Starter 
O.K. I think the above settings are as far as I can go. I went back and looked at this guide http://www.overclock.net/amd-general...ocket-am2.html . I went back to isolate the motherboard per the guide. I set my settings to the following:

Ref Clock: 240 ( I started here instead of 200 per the guide cause I new it worked already)
CPU Mult: 5x
HT Mult : 4x (again started here as I know it works but wanted to double check)
CPU Volt: 1.31v (stock)
Memory: DDR2 400
Timings: 5-5-5-18-26-2t
Memory volt: stock
Motherboard volt: stock

Booted up and tested with orthos - passed

Set ref clock to 245, HT link 800 - No boot
reset to previous settings - booted fine
Set ref clock to 245, HT link 600 - No boot again.

So if I understand the guide correctly 240/800 is as high as my board will handle and thats as far as I can go. It's not my CPU because it's at 5x and it's not my memory as the timings are loosened. Is this correct? I'm pretty happy with 3ghz oc'd from 2.5ghz . It was my goal and anything higher was a bonus. But if there is more I can do, I'm game to try. Suggestion??

This is where my OC stands and is stable with orthos running 20+ hrs without error

Ref clock: 240
CPU Mult : 12.5 (stock)
HT Mult: 4x
Cpu volt: 3.12v (stock)
Memory settings: DDR2 800
Timings: 4-5-4-11-24-2t (stock)
Mem Volt: 2.1v (stock)
MB volt: stock
    
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post #5 of 33
Thread Starter 
Anybody have any suggestions?
    
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post #6 of 33
If you want to try for more, you could try upping your mobo voltage a bit. This SHOULD keep your HT link from crashing at anything over 1Ghz.
    
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post #7 of 33
Quote:
Originally Posted by Steady65 View Post
Anybody have any suggestions?
Steady, looks like you may have to drop your memory to a lower divider. Try shooting for DDR2 667 or even 533. This should keep your frequency below stock. Are you Orthos stable with that current OC?
You mentioned in your earlier post that you were looking for the maximum limits of each component. What is the max HTT (reference clock) of your chipset? If you want to go any further you may also have to raise the vcore up a notch. In my opinion 3000mhz is a nice OC coming from 2500mhz. Anything upwards of 3Ghz is already pushing the K8 tech so don't expect to much. Either way great job

Good luck
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post #8 of 33
Thread Starter 
Thlnk3r - Yes my current OC is stable with ortho's. I ran it well over 24hrs without a problem, have also played Crysis and cod4 demos without a problem.

As far as your suggestion to lower the divider, didn't I already do that with these steps:

Ref Clock: 240 ( I started here instead of 200 per the guide cause I new it worked already)
CPU Mult: 5x
HT Mult : 4x (again started here as I know it works but wanted to double check)
CPU Volt: 1.31v (stock)
Memory: DDR2 400
Timings: 5-5-5-18-26-2t
Memory volt: stock
Motherboard volt: stock

Booted up and tested with orthos - passed

Set ref clock to 245, HT link 800 - No boot
reset to previous settings - booted fine
Set ref clock to 245, HT link 600 - No boot again.


Also I THINK my max ref clock is 240 based on the above, correct me if I'm wrong.


and to kinzee, my HT link isn't a problem I don't think; it's below 1000 being set at 4x (end up being at 960). Actually it went to close to 1100 and stable per orthos, before I had any problems, I had to drop it to 4x when I hit 240 ref clock. I also already tried it at 3x to hit 245 ref clock with no success.

Again I'm new at this so maybe you guys are asking me something other than I think you are asking
Edited by Steady65 - 5/19/08 at 1:41pm
    
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post #9 of 33
I love how EVERYONE posted in this thread so far has all AMD builds.
post #10 of 33
Quote:
Originally Posted by Steady65 View Post
Thlnk3r - Yes my current OC is stable with ortho's. I ran it well over 24hrs without a problem, have also played Crysis and cod4 demos without a problem.

As far as your suggestion to lower the divider, didn't I already do that with these steps:

Ref Clock: 240 ( I started here instead of 200 per the guide cause I new it worked already)
CPU Mult: 5x
HT Mult : 4x (again started here as I know it works but wanted to double check)
CPU Volt: 1.31v (stock)
Memory: DDR2 400
Timings: 5-5-5-18-26-2t
Memory volt: stock
Motherboard volt: stock

Booted up and tested with orthos - passed

Set ref clock to 245, HT link 800 - No boot
reset to previous settings - booted fine
Set ref clock to 245, HT link 600 - No boot again.


Also I THINK my max ref clock is 240 based on the above, correct me if I'm wrong.


and to kinzee, my HT link isn't a problem I don't think; it's below 1000 being set at 4x (end up being at 960). Actually it went to close to 1100 and stable per orthos, before I had any problems, I had to drop it to 4x when I hit 240 ref clock. I also already tried it at 3x to hit 245 ref clock with no success.

Again I'm new at this so maybe you guys are asking me something other than I think you are asking
Steady, you changed your divider to run at DDR2 400 or the frequency was at 400mhz? What process did you take to the find the max HTT (reference clock) of your chipset?

Good luck
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