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The Opteron Skt 939 Overclocking thread !!!!

MikeTimbers said:
Don't knock TwinMOS - some of it is BH5 (mine is and does 244 at 2-2-2-5)
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Mines the Samsung UCCC stuff but its still on a cheapo PCB:p Nah its good stuff, wouldn't be suprised if it did 250 but I don't tighten up my timings untill I've maxed out my overclock and decided what settings to stick at, and I'm not planning on stopping at 2.8GHz.
 
4Qman said:
Rob,

them ballistics go any higher. Ive read most hitting between 280-300.
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wish mine would do 280+ my pc becomes unstable with them at 270 and that was at 2.8v too, i'm now running them at 265 with 2.7v after reading the thread about them dieing :rolleyes: which they seem perfectly happy with.
 
Can't really get mine past 2.85GHz without it getting too hot (only using the cooler that came with my S754 3700 claw) this is at 1.475v and its around 60°C.

I'm happy with an 850MHz overclock though, wasn't really expecting 3GHz. I was tempted to get my old watercooling gear out and have a go, but 150MHz isn't worth the hassle IMO. I'll have a look at my timings now.
 
Here's my first stab at o/c'ing a CPU.

It's a 144 CABNE 0545BPMW, with an Akasa 859 all copper HSF, running on an Asrock DualSATA with 2x512MB PC3200 Crucial RAM. Here's a screenie with it running Prime95;



Running with the HTT at 245 is the sweet spot for my memory as I'm running on a divider as I don't really want to overclock my memory.

Obviously I'll have to stress test more before I go onto clocking it more, but what is a "safe" temp for a 144 to be running at? As per the screenie, it's at 43 degrees under load(low 30's at idle)and I have another 1000+ rpm to play with on my CPU fan.

As an aside, I don't know where the voltage reading came from in the CPU-Z panel. It normally fluctuates between 1.40 to 1.42 but for some reason when I did the screen print it's showing that high value :confused: . The Everest reported value is the norm.

Any advice/input would be appreciated.
 
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Dagwood, your temps are fine just try and keep it below 50c. keep pushing that overclock and see what its maximum stable clock is at that voltage. temps will not raise until you increase the vcore. if its value pc3200 Crucial ram you should be able to run slightly tighter latencies at its rated speed. if you find a wall at a certain cpu overclock switch to another divider and try again. pretty much every opty has a considerable amount of headroom at stock volts, I feel theres loads left in your system, dont worry about the slight vcore fluctuation in cpuz, some boards tend to do that but its of no concern.

Tim you have to get your old watercooling gear out! your probably right though as you have managed a great overclock already. keeping these cpu's cool helps quite a lot I've found, even if its load temp is pretty reasonable anyway.
 
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Hesky82 said:
Dagwood, your temps are fine just try and keep it below 50c. keep pushing that overclock and see what its maximum stable clock is at that voltage. temps will not raise until you increase the vcore. if its value pc3200 Crucial ram you should be able to run slightly tighter latencies at its rated speed. if you find a wall at a certain cpu overclock switch to another divider and try again. pretty much every opty has a considerable amount of headroom at stock volts, I feel theres loads left in your system, dont worry about the slight vcore fluctuation in cpuz, some boards tend to do that but its of no concern.
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Thanks for the input Hesky82.

It is "normal" Crucial RAM. Do you know if I leave the latencies as is(3-3-3-8), would this RAM take a 10% overclock? I ask because if I raised the HTT to 267 and ran my RAM using my current divider setting (166), the CPU would be running at 2.4GHz and my RAM running at 220MHz?

I know Crucial dimms are reliable, but I don't know if they're any good at taking an overclock :o
 
Hesky82 said:
Tim you have to get your old watercooling gear out! your probably right though as you have managed a great overclock already. keeping these cpu's cool helps quite a lot I've found, even if its load temp is pretty reasonable anyway.
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It isn't worth the hassle mate:o I just cant be bothered with it. As it is its fast enough and isn't that loud really.

Having said that I can't be bothered to sell it all either:o Just out of interest what would I get for a Swiftech 6002, Eheim 1250, DD Maze4 (GPU) and Thermochill PA160? I'll just throw the Tygon tubing away.
 
dagwoood said:
Thanks for the input Hesky82.

It is "normal" Crucial RAM. Do you know if I leave the latencies as is(3-3-3-8), would this RAM take a 10% overclock? I ask because if I raised the HTT to 267 and ran my RAM using my current divider setting (166), the CPU would be running at 2.4GHz and my RAM running at 220MHz?

I know Crucial dimms are reliable, but I don't know if they're any good at taking an overclock :o
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Only way is to overclock gradually and run memtest every time and see if you pass error free. To be honest if you keep the SPD timings of CAS 3 I'm sure a frequency of 220 is easily possible. I've seen people run 237 with value crucial and loose timings.
 
Tim said:
It isn't worth the hassle mate:o I just cant be bothered with it. As it is its fast enough and isn't that loud really.

Having said that I can't be bothered to sell it all either:o Just out of interest what would I get for a Swiftech 6002, Eheim 1250, DD Maze4 (GPU) and Thermochill PA160? I'll just throw the Tygon tubing away.
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no idea m8, all I know is 60c is a little toasty for an opteron, even though they are more thermally capable than the venice.
 
I've always been one that says it aint too hot untill it starts interupting my games of CoD2:p

I couldnt care less whether its running at 40c or 80c, it will crash when it gets too hot. I dont think my watercooling gear will be coming out.
 
lol it would do more than crash at 80c! I think the thermal design power of these rev.e opterons are around 67 watts so under normal conditions that would equate to a maximum running temperature of 65-70c, so if your cpu by chance manages to hit above that figure for a period of time it will almost certainly die.
 
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