1st time overclock, suggestions/feedback pls...

no_1_dave

no_1_dave

no_1_dave

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Joined
7 Jul 2004
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Gloucester
Got my new rig up & running:

Opteron 170 (0550 stepping)
Asus A8N-SLI Premium
7900 GT
Artic Cooler Freezer 64 Pro
Zalman VF900 VGA Cooler
Akasa Eclipse case
Tagan Easycon 530 PSU

Now, i've only got Geil Value (2Gb) ram which maxed out at 210 roughly @ 2.75v so I dont really plan to clock it much, probably leave it on the 266 divider.
The opti is stabe 2.6Ghz 1.38v (so far with quick test, 1 hour prime on both cores at once, will do a full test when I go to bed).

Now if I put it to 2.7Ghz prime gives an error in the first 5 mins, so do I up the volts more to say 1.4v & push 2.7 (poss higher) or do I just put the memory timings down to 2.5 3 3 7 (from 3.0 4 4 8) & leave the 2.6Ghz where it is as I am pleased with it. If the ram clocks any higher then it'll be too high to mess with timings as this ram is **** even on a divider. I know its running at only 346 total but I bet changing the timings will give me errors...

And i'm not much of a risk taker :cool:

Err, havent fitted the Zalman on the 7900 yet either, will do that tomo, so far it maxes out at 540/746 ish :(

Edit: Thinking about it, I didnt try upping the chipset voltage at all, could that be why 2.7Ghz wasn't stable? I've read the overclocking threads etc & read this: http://forum.overclockersonline.com...74&start=0&S=4c5bd34cf6083fac6eb0ff0f09321352

Oh & forgot to mention, Hyper Transport is on 3x!
Also, if I put my ram in 1T mode my pc just sits there & beeps at me, wont even post :confused:
 
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That RAM will do 235 with 2.9V but stick your RAM on a 333 divider and your mem at 2.5/3/3/7 with a 1T setting. 2T will hit your system performance in a massive way. Now up your HTT until it becomes unstable then increase the Volts to the CPU and test. Keep doing this until your temps get too high and then back off slightly.
There are lots of in deapth articles on the subject if you google for them.
 
no_1_dave said:
1T made my pc not even post :confused:
Click to expand...
Stick your setting back to stock then set your mem at 1T and 2.5/3/3/7 and just push up your HTT 5 mhz at a time.
Not running at 1T has a massive impact, some say the equivalent of 30-40 on your HTT.
 
Got 1T working now :)
CPU = 2.6Ghz (260x10 @ 1.375v)
Ram = 434Mhz 1T 2.5 3 3 7 (333 divider @ 2.9v)
Shame the Hyper Transport has to be down at 3x though. I wonder if it'd work at 4x (1040Mhz)... Anyone tried it?
 
no_1_dave said:
Got 1T working now :)
CPU = 2.6Ghz (260x10 @ 1.375v)
Ram = 434Mhz 1T 2.5 3 3 7 (333 divider @ 2.9v)
Shame the Hyper Transport has to be down at 3x though. I wonder if it'd work at 4x (1040Mhz)... Anyone tried it?
Click to expand...
Makes no difference to performance and only DFI MOBOs can generally run at over 1000.
Chances are it will be unstable at anything over 1000. i run mine at x3.
 
1.45-1.5v should still be safe enough to try on CPU, get that clock up! :D

(temperatures permitting of course)
 
pegasus1 said:
Makes no difference to performance and only DFI MOBOs can generally run at over 1000.
Chances are it will be unstable at anything over 1000. i run mine at x3.
Click to expand...
This caught my attention. My htt on my opty 148 is at 263, htt multi 4x. Using DFI expert mobo. Should it be down at 3x? Or don't DFI mobos mind as much? I was under the impression that a little bit over or under 1000 was still ok, but if stability will be better at 3x ill change it
 
IamMed said:
1.45-1.5v should still be safe enough to try on CPU, get that clock up! :D

(temperatures permitting of course)
Click to expand...

Dual Prime with it as it is now gets it to 48c

Thats with an Artic Freezer 64 Pro
Akasa Eclipse with 2 x 120mm fans (although these are at 5v)

How hot are these allowed to go, bearing in mind I dont wanna have to clock it down in the summer? ;)
 
joeyjojo said:
This caught my attention. My htt on my opty 148 is at 263, htt multi 4x. Using DFI expert mobo. Should it be down at 3x? Or don't DFI mobos mind as much? I was under the impression that a little bit over or under 1000 was still ok, but if stability will be better at 3x ill change it
Click to expand...
From all that ive read, only DFI's will run stable at over 1000 but there appears to be no performance benifit to be gained. if your system is stable then i spose its fine.
 
Dave try and keep the load temp below 45. As yours is exact same steping as mine it will perform very similar. At 2.6ghz temp wont make much difference but when you start getting to 2.8 and beyond you will need to keep the temps low for stability.

With the memory i couldnt get my old corsair 4400 past 250mhz in slots a1 and b1 so i tried a2 and b2 and that allowed me to go up to 270 which seemed to be the boards limit as i knew the cpu and memory could both go higher. Anyway it matters very little on a64 having memory running fast. Just stick it on a divider to keep it below 210mhz or so. Leave the timings loose for now and see what the cpu can do. Then start to tighten the mem timings and run memtest. 2.6ghz is nothing for these 170's so start pushing up the speed
 
no_1_dave said:
Dual Prime with it as it is now gets it to 48c

Thats with an Artic Freezer 64 Pro
Akasa Eclipse with 2 x 120mm fans (although these are at 5v)

How hot are these allowed to go, bearing in mind I dont wanna have to clock it down in the summer? ;)
Click to expand...

under 50c so atm your about as high as you want to go, dual 2.6ghz should be pretty nippy though :D

my mate ran his stock X2 3800 off the A64 pro cooler I'm using atm and reckoned that it was barely better than the stock cooler, has since put a Thermalright SLK948U on it (older design with no heatpipes) and it knocked 7-8c off his load temps.
 
yer, I know what yer meen, for the last year I was using watercooling, but atm I have it all dismantled and am using air temporarily, the noise of these coolers is seriously bugging me lol
 
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