Help with OC'ing Opteron 144 please.

Well, for a start a 133 RAM divider may be too high - at 300FSB that corresponds to PC3200 speeds, and he only has PC2700 RAM. Try setting it to 110 or lower so you can eliminate the memory as a bottleneck.
 
Currently its @ 9x286 HTT and multiplier @ x3 and prime been running for a few mins so far. For the past couple of hours i've been raising it by 3 then running prime.

Should i wait to lower the divider again when prime fails? Or should i just lower on next reboot?

Hmm i think i seem to have found myself a new addiction :D
 
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Ran prime for 10minutes on 9x300HTT divider @133 and all was fine. Upped to 9x303HTT and windows froze straight after loading the desktop. So lowered the divider to 100 and tried for 303HTT again but then had lock up from merely running the prime benchmark never mind torture test. So is this as high as i can go with the memory/motherboard i have? Or will upping the voltages help.

[Edit - never mind, gonna drop the HTT by 10 and leave it running overnight and while i'm at work tomorrow and i'll be happy if its stable at that considering the crappy memory i'm using :) ]
 
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K404 said:
Something on Speedfan is at 127. What the hell is at that kinda temp??????
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Probly his hdd! Speedfan reports mine at over 200c sometimes??? I was abit worried about this but everything seems to be fine. Do hd's really get to this temp? im assuming its a bug or something??

Anyways Zephyrus! hello there, ive just got into overclockin myself and you should really take it 1 step at a time!

The way i like to do it is to set the highest divider on the ram and all timings to auto. Stick the ht multi to x3 and move up 5mhz at a time on the htt.

After each 5 mhz increase i run a 1mb test on superpi until it fails (seems a quick way of reaching the limit on the cpu). After it first fails the 1mb superpi i up the voltage abit and try it again (i went up to just under 1.6v and only managed to get to 2.9ghz).

I decided it wasnt worth the increased temps so took it back down to stock volts and knocked it back to the last succesfull 1mb superpi test and ran prime for a few hours. The end result was over 10 hours prime stable at 2.8ghz/stock volts.

Anyways thats how i found the limit on my oppy, after this i decreased the divider on the ram until it was at a sensible speed (233mhz), then ran prime overnight. I then had a fiddle with the timings starting with 1t of course ;)

End result:

10x280 - 2.8Ghz
Ram @ 233mhz 2.5-3-3-6

I was hoping to hit 3ghz but 2.8 well over 10 hours prime stable is good enough for me!

Anyways this was my first serious go at overclockin but this way seemed to work quite well for me (but obviously your system is different). Hope this helps anyway :)
 
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Whatever it is thats reading as 127C has been reading that from the start and hasnt moved up or down even a fraction in the whole time, so i'm assuming its a faulty reading?

Prime ran for nearly 8 hours and didnt fail once, i take it that means my system is stable at 2.6Ghz then? :)
RAM divider @133, and voltage at stock (1.39V). Going by the graph on speedfan the temps were between 32c and 41C.
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looks pretty good to me yeah! have you tried pushing it furthur with the ram on its biggest divider just to make sure your rams not holding the cpu back?
 
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Yep, as soon as i got to 9x303 on the 133 divider and it failed prime i changed the divider to 100 and tried 303 again, but was still no go. The reason i dropped to 9x290 before running prime over night is cos i read that when you find a figure that fails you should drop it down a few and then run prime over night, so i assumed dropping it to 290 would be sensible as i am not losing much anyway.

All this seemed so complicated just yesterday morning lol. I gotta say that you guys on here are very helpful, and a thanks from me for being patient with me :) The volatges are still @ stock, would i get much more out of it by upping them, or should i just leave it for now?
 
No problemo, we've all been there before!

not sure if ud get much more, i think some people have but i can only get another 100mhz aswell as a 6c increase in temps and im not prepared to go over 1.6v's. So its not worth it for me but im sure others have got better results.
 
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Bump up the voltages and see what you can get. Up to at least 1.55v vcore and 2.8v vdimm should be fine (I run mine higher but you don't wanna go overboard too early).
 
n3x said:
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Anyways this was my first serious go at overclockin but this way seemed to work quite well for me (but obviously your system is different). Hope this helps anyway :)
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well done mate, you seem to be doing it just right.
 
Zephyrus said:
The volatges are still @ stock, would i get much more out of it by upping them, or should i just leave it for now?
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personally I would be happy adding a bit more to the Vcore and Vdimm if they are still at stock. there is no hard and fast rule, but keep an eye on the temps. I think another 100Mhz might be achievable. it's up to you whether you go for it.
 
Gimme a figure for vcore and vdimm to input before i reboot then ;)
Or is it a case of the same as before.. little by little?
 
@1.55V and 2.8V
9x306 and 133 divider.

wont this be stressing the memory? should i perhaps lower the divider?

All seems to be well but surely the pc2700 wont handle much more.
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aztechnology said:
well done mate, you seem to be doing it just right.
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Cheers buddy, im happy with the results! All i need is some money to try out those dual cores now... :)

Zephyrus your ram probly will hold you back, but try dividing it as much as you can just to see what your cpu is capable of. I've had my vcore up to 1.59 and it seemed pretty happy (39 idle, 51 load) try going up little by little and testing for stability each time, u should be perfectly safe up to 1.55v's ;) i only got another 100mhz and didnt think it was worth it!

Just noticed you're nearly up to 2.8ghz! Thats pretty good! Heres my effort...

 
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In the end i decided to settle for 2.6Ghz @stock volts, probably more out of nerves than anything else :p. To be honest i'm chuffed to bits that i got this speed on my first serious overclock. Once the Missus has stopped emptying my pockets with the January sales (whoever was the 1st person to ever have a January sale has a lot to answer for!) i'll get a good 2Gig Ram kit and something other than the stock cooler and give it a go again as it seems this opty is capable of 200-300Mhz at least.

A couple of weeks ago this system started out as an order of a 1gig stick of ram for my old celeron system, amazing what happens when a sudden twitch takes over your hand when hovering over the buy button on the OC site ;)
 
Tell me about it! My hands been twitching over that 2gb Gskill kit all week :rolleyes: damn those special offers...

Anyways it seems you've done well for yourself and im glad for u! oh and if you're on a tight budget, i (as always) recommend the arctic freezer 64, have a look around the net and u can still get it for around a tenner! a bargain if u ask me.

my beers run out... im off to raid the fridge :)
 
Hey there,

I was looking at the spec and the computer looks like it's 5 or 6 years old - maybe it's time for an upgrade?

No overclock you do on that will be able to compete with today's processors!
 
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