Opteron 146 Overclock Help

snowdogg187

Golden Member
Nov 1, 2000
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Hey guys,

I'm up to 2350 so far, taking it slow. Idle temp is 35c and load 45c.

All i did was went into my bios and changed the mult to 235, left the other thing at 10.

Is it fine if when I'm pushing it I just keep raising the multiplier then burn in testing?


Specs listed below, I have arctic silver ceramique as well.

thanks for helping me out guys, I have been to many sites but not much of it makes that much sense at this point.
 

Mucker

Platinum Member
Apr 28, 2001
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I've used six 146's so far (all with varied steppings) and everyone of them did 2700 MHz with stock or slightly above voltages. If you keep the voltage under 1.5v and the max load temp under 50C, you will have zero worries....

m :)
 

Pens1566

Lifer
Oct 11, 2005
13,681
11,244
136
Originally posted by: snowdogg187
Hey guys,

I'm up to 2350 so far, taking it slow. Idle temp is 35c and load 45c.

All i did was went into my bios and changed the mult to 235, left the other thing at 10.

Is it fine if when I'm pushing it I just keep raising the multiplier then burn in testing?


Specs listed below, I have arctic silver ceramique as well.

thanks for helping me out guys, I have been to many sites but not much of it makes that much sense at this point.

Search this forum for Zebo's OC'ing guide. Good info. Also, you can't raise the multiplier on optys, only on FX chips. Good luck.
 

buzzsaw13

Diamond Member
Apr 30, 2004
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Originally posted by: Mucker
I've used six 146's so far (all with varied steppings) and everyone of them did 2700 MHz with stock or slightly above voltages. If you keep the voltage under 1.5v and the max load temp under 50C, you will have zero worries....

m :)

You should be good as long as you don't hit 55C or higher.
 

snowdogg187

Golden Member
Nov 1, 2000
1,400
0
76
Thanks guys.

Do you think I should keep my CPU HS Fan at the highest speed all the time? how about the case fans?

And I will watch again so the temp doesn't go over 55c while running Prime95 (I imagine thats the best way to push the system to test the overclock right?

Thanks guys, and I will be reading that guide.
 

Absolute0

Senior member
Nov 9, 2005
714
21
81
Yeah definitely not much need to take it slow, i boot single core Opties straight into windows at 2.8 on stock volts, prime for about 5 minutes and then clockgen up as it primes. You can find the max speed primable on stock volts in a few minutes, and then start raising volts while monitoring temps.
 

snowdogg187

Golden Member
Nov 1, 2000
1,400
0
76
ok, now I'm having issues. I tried to bump the mhz from 200 to 255 and it wouldn't even boot. kept going down and same thing until I got down to 235.
I started Prime95 stress test at 235 and it messed up a calculation right away and got warm(like high 50's)

brought back to stock and prime got it hot yet again. what in the heck should I do at this point?

thanks!!
 

buzzsaw13

Diamond Member
Apr 30, 2004
3,814
0
76
Voltage seems to be fine, I've got my 146 running at 2.8ghz at 1.4V

You should try bumping it up to 1.45V, the highest I would go would be 1.5V since you've got a 7000B AlCu. I've got the copper version of it and the IHS is removed and temps gets unstable if I try to bump it above 1.5V
 

snowdogg187

Golden Member
Nov 1, 2000
1,400
0
76
thanks guys, I will try using a mem divider.

Also ceramique should be fine right? i thought it was better to use than AS5.

I also will add a 2nd 120mm fan to the case to try to help.
 

Kakumba

Senior member
Mar 13, 2006
610
0
0
Ceramique is fine. the difference in temps from the good thermal interfaces is like 1 or 2 degrees at most.

anyways, lets get some more details, you werent trying to boot with your ram on a 1/1 divider at that were you? drop the multi to say 2/3, and try again. try booting at 260. what other dividers do you have between 166 and 200 (2/3 and 1/1)

and yes, you can keep raising the FSB while stress testing, if you use clockgen. then when you find your max, you can try more volts, see what the new max is, and when you have a max at safe volts, set to that in BIOS. thats a quick guide, but keep posting and we can help.
 

snowdogg187

Golden Member
Nov 1, 2000
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Yes I was trying to boot at 260 or 250 or so without changing the ram divider.

Tonite I changed the divider to 266 and booted at 2500 and it booted to windows. Still got hot using prime again though.

Went back to stock 2000 with 400mhz(mem) and prime still got the cpu temp to 55 after about a minute. This is running too hot isn't it? I thought I got a pretty good cooler and case. HS fan is running at 2400 rpm(highest speed) as the back 120mm is at high speed as well.

I want the thing to run perfectly at stock speeds before I max out the oc.

Thanks again for all your help guys, I hope to hammer this out this weekend.
 

vanvock

Senior member
Jan 1, 2005
959
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0
Also keep HTT multi = 1000 or less. Put it at x4 for 250, if going much more go to x3.
 

Steaksauce

Senior member
Feb 15, 2005
255
0
0
I have mine at:
262 HTT
4 Multi
166 Divider
1.425V

You should be able to do that. If it doesn't boot, relax the memory timings alittle because the effective speed of mem will be 218.