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*** Official Opteron 170 Ocing Thread ***

Man, that sounds really bad compared to the rest of us with the same stepping :(

I would take off the IHS, but it is a bit dodgy though if your not too stable on the hands. :rolleyes:
 
Clint said:
Man, that sounds really bad compared to the rest of us with the same stepping :(

I would take off the IHS, but it is a bit dodgy though if your not too stable on the hands. :rolleyes:
Click to expand...

Core 1 failed at 2.8 @ 1.456v. Temps were almost at 50 though so reckon this is the prob
 
ted34 said:
Core 1 failed at 2.8 @ 1.456v. Temps were almost at 50 though so reckon this is the prob
Click to expand...

Well what do you know - 2.8ghz priming for an hr @ 1.4v. Temps at 40 degrees. Took side panel off and put a couple of higher rpm fans in. These 170's are the more temp sensitive than thermometers
 
ted34 said:
Well what do you know - 2.8ghz priming for an hr @ 1.4v. Temps at 40 degrees. Took side panel off and put a couple of higher rpm fans in. These 170's are the more temp sensitive than thermometers
Click to expand...

..I rest my case ;)
 
Clint said:
..I rest my case ;)
Click to expand...

A ninja's on its way but to be honest on my old 3700 it ran at 2.7ghz until it was replaced by one that could run at 3ghz. I noticed no difference in performance (superpi 1mb was nearly 3s quicker though) in games and everyday use. The 170 at 2.7ghz is definitely quicker than the 3700 at 3ghz even though its 2s slower in pi1mb
 
Scoobie Dave said:
Finally decided to overclock your X2 then? :D
Click to expand...
Yep, but only after completely overhauling my watercooling system which now is about 10C cooler than before - removing one of my rads (120.2) and shortening all pipe lengths was enough. :D. Dual 2.8ghz power :D.
 
As far as I know, the PWMIC is the voltage control circuitry for your CPU, and is normally located near to it. If it gets too hot, it can cause system instability through incorrect voltage regulation.

This circuitry seems to be covered by small heatsink on the DFI SLI-DR expert. Not sure about other boards. Doesn't hurt blowing a fan on it though.
 
Squidge said:
As far as I know, the PWMIC is the voltage control circuitry for your CPU, and is normally located near to it. If it gets too hot, it can cause system instability through incorrect voltage regulation.

This circuitry seems to be covered by small heatsink on the DFI SLI-DR expert. Not sure about other boards. Doesn't hurt blowing a fan on it though.
Click to expand...

Anyone else know where the PWMIC is on the SLI-DR mobo?
 
Near the 4 Pin CPU power socket (the square one), there is a flat rectangular chip which looks a bit like a RAM chip (but smaller) to the left. This is the PWMIC.
 
Finally did it. Found it to be the divider causing probs. Now up and running at 3ghz at 1.392v. Ninja on its way too so may try for 3.1ghz. Had another 170 as well but got lost in post. Would have been nice to see what that could have done.
 
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ted34 said:
Finally did it. Found it to be the 7:10 divider causing probs. Now up and running at 3ghz at 1.392v. Ninja on its way too so may try for 3.1ghz. Had another 170 with same stepping as well but got lost in post. Would have been nice to see what that could have done.
Click to expand...

Great!

Finally you hit 3GHz :D
Now if you feel you need to take the hat off and use the XP-120 I've made a tutorial:
http://www.xtremesystems.org/forums/showthread.php?t=91661
 
Scoobie Dave said:
What actually is PWMIC and where is it?

If PWMIC gets too hot can this cause unstability?
Click to expand...

Dave the temp range of the pulse width modulators controller ICs (PWMIC) used on these dfi nf4 boards are rated for 110°C minimum. they can run hot with no effect on your oc.
 
The following list is as good as my 170 ccbwe 0546 xpmw gets:
2.50ghz @ 1.4v
2.60ghz @ 1.45v
2.65ghz @ 1.5v
2.70ghz @ 1.55v
2.70ghz @ 1.6v
i can't get any higher than 2.7ghz as my core temp hits 50ºc+ and Prime95 fails within minutes. My max cpu case temp is 49ºc.
The above clocks are super stable with : superPi32m, OCCT, 3dmark03,05,06 and 10+ hours prime95.
My only other option is to try a different bios but i believe it is the chip temperature that is limiting my clock.
Mabye not a 2.8 @ stk volts monster but still a fanastic chip :)

Rich
 
XtremeStability™ Quad-Prime



Lol this is killer hard, been trying for 2-3 days to get a positive result @2.6GHz but no luck so far :rolleyes:

In my 3 attempts to get a 24hour *Quad* prime pass @ 2.6GHz the stress prime running on core 1 would just stop after about 13 hours (program not responding!) or the system would completely *freeze* after 17 hours.

I should have started using this test while the system was at stock, but I dived right in there at 2.6GHz and after a few failed attempts I thought maybe it was not possible for a system to withstand this sort of pressure so I decided to reset the Opteron 170 (CCBWE 0550) to stock speeds and yup it passed no problems, now I have to fiddle to work my way up, still hoping for 2.6GHz

The stress primes are running small FFTs (as can be seen) and the prime95's are running Large FFTs (the max heat/power one).

This is in a *closed* air-cooling system in a nice warm room (i.e normal living conditions) and I have been using the system throughout testing for TV viewing, surfing etc.

This information is meant for the power-users as it has been made very clear that a lot of forums members here are benchmarkers who have no issue with an unstable system! :)
 
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