* Official Opteron 170 Ocing Thread *

easyrider · 5 Mar 2006 at 09:52

smids said:
Oh I get you . As you can see I didn't get up long ago! But then again, my example does show temps made a difference in my case...

Anyway, I was trying for 2.8ghz (11 x 255 = 2805mhz)

But I get you now - sorry .

lol

thats ok how come you have a 11 multi anyway? on an opty 170? this is imopssible.

Jokester · 5 Mar 2006 at 09:53

easyrider said:
Which leads me to believe the failure was not temp related.

Yep, I'm getting some strange results with another dual core, SnM stable to 3GHz on air, the second you go over it resets itself. Temps are still good (50C full load), giving it more volts doesn't make any difference, even using phase makes no difference. Tried it on 3 motherboards, 2 PSUs and different RAM so it's definitely something about the CPU.

Jokester

smids · 5 Mar 2006 at 09:55

easyrider said:
lol thats ok how come you have a 11 multi anyway? on an opty 170? this is imopssible.

It might not be an Opti at all

, it might be a very similar CPU though!

easyrider · 5 Mar 2006 at 10:04

Jokester said:
Yep, I'm getting some strange results with another dual core, SnM stable to 3GHz on air, the second you go over it resets itself. Temps are still good (50C full load), giving it more volts doesn't make any difference, even using phase makes no difference. Tried it on 3 motherboards, 2 PSUs and different RAM so it's definitely something about the CPU.

Jokester

must have found the cpu's limit!

dual core 3ghz is nice though

Jokester · 5 Mar 2006 at 10:06

easyrider said:
must have found the cpu's limit!

dual core 3ghz is nice though

It's strange though, I've never had a chip that goes from 100% stable to total instability in the space of a few MHz. It doesn't even go through a stage where it produces errors, just falls over completely.

Jokester

easyrider · 5 Mar 2006 at 10:13

I'm yet to try higher than 2.8ghz.
Have been working my way up gradually.

If this thing does 3ghz on air I will be amazed! But vcore is low and temps are ok so I will try 2.9ghz later tonight.

Clint · 5 Mar 2006 at 12:00

easyrider said:
Not been an issue here.These chips are designed to run hotter

Not at these speeds.

Clint · 5 Mar 2006 at 12:01

Jokester said:
It's strange though, I've never had a chip that goes from 100% stable to total instability in the space of a few MHz. It doesn't even go through a stage where it produces errors, just falls over completely.

Jokester

Again, lower the temps and you will see gain in clock.

easyrider · 5 Mar 2006 at 12:04

Clint said:
Not at these speeds.

I'm running mine at 2.8ghz with no issues with heat.Running above 50c full load dual prime stable.

So as I say I have no issues with temps above 50c whatsoever.

Big.Wayne · 5 Mar 2006 at 12:18

Whats the correct way to install 2x Prime95?

Do I just re-run the setup exe and install it in a different folder?

And what is the best way to assign this *affinity* thing?

Danke

easyrider · 5 Mar 2006 at 12:18

Clint said:
Again, lower the temps and you will see gain in clock.

He has already said that using Phase makes no difference.

Jokester said:
Temps are still good (50C full load), giving it more volts doesn't make any difference, even using phase makes no difference.

easyrider · 5 Mar 2006 at 12:19

Big.Wayne said:
Whats the correct way to install 2x Prime95?

Do I just re-run the setup exe and install it in a different folder?

And what is the best way to assign this *affinity* thing?

Danke

Yes

And in prime choose advanced then set affinty

smids · 5 Mar 2006 at 12:21

Big.Wayne said:
Whats the correct way to install 2x Prime95?

Do I just re-run the setup exe and install it in a different folder?

And what is the best way to assign this *affinity* thing?

Danke

http://forums.overclockers.co.uk/showpost.php?p=6562395&postcount=11

smids · 5 Mar 2006 at 12:22

easyrider said:
Yes

And in prime choose advanced then set affinty

Much easier than that - don't bother with 2 installs...see my post above.

Big.Wayne · 5 Mar 2006 at 12:26

cool ta! When I tried to run the prime exe it wouldn't let me install a second copy so will give this above method a spin now. . .

easyrider · 5 Mar 2006 at 12:43

smids said:
Much easier than that - don't bother with 2 installs...see my post above.

yeah the shortcut method.

both have worked for me

ted34 · 5 Mar 2006 at 15:44

easyrider said:
Its not the heat thats failing that OC imo its the voltage.These things can run at 65c so 45c is no problem.

I'm 2.8ghz @1.36 v and my temps are fine.In warm room.

PWMIC get a tad toasty but I'm on the case.But its stable as a rock .

I have noticed a 6c rise from stock on my opty.Its the vcore that causes the heat not the overclock imo

Sorry for not making it clear. Have notice that once it passes 45degrees core 1 fails. Even if its stable at a low voltage, if i raise that voltage and re-test it fails due to the extra heat. 45 degrees is well within what the cpu's are designed to run at but when they are at 2.8ghz it makes much more difference

ted34 · 5 Mar 2006 at 15:47

Clint said:
Yup, 44-45C seems to be the number to avoid passing, craps out for me as well.
Idle dropped 3C and load 8C, I'm on a Big Typhooon now but have a XP-120 that I'm gonna mount later on...needs modifications though.
The Big Typhoon will strain the Mobo and core if in a vertical chassi.

Haha, the mobo is very close to the window...not that cold in room.
I have a tempmonitor lying on the mobo.
I only do this to see the potential for a watersetup, pretty easy and cheap test to do before I go and order all those tubes and tanks.
And I knew you gonna jump all over it..hehe

Let me know how you find the xp120 compared to the big typhoon. What fan are you using with the xp120? so far under load im at 40degrees with 1.376v. Think 1.4v will be my limit due to temps. Watercooling looking tempting. So many people over at XS are taking the exact same stepping cpu's as ours past 3ghz.

Clint · 5 Mar 2006 at 19:00

ted34 said:
Let me know how you find the xp120 compared to the big typhoon. What fan are you using with the xp120? so far under load im at 40degrees with 1.376v. Think 1.4v will be my limit due to temps. Watercooling looking tempting. So many people over at XS are taking the exact same stepping cpu's as ours past 3ghz.

The XP-120 gives me some 2-3 degrees higher temps compared to the Big Typhoon, I see now 45 degrees when priming on 2700MHz on 1.19volts in a 25degrees ambient room...idle is 34 degrees.
This is with the fan that came with the Big typhoon, it has a max of 1100rpm and are very quiet (16db).

On the DFI Ultra-D the heatsink mounts are not linear with the force of gravity, so the BT gives to much of momentum for my taste...the XP-120 is a better choice in my book.

I had to cut bits and pieces to fit the XP-120 after the IHS was removed...but now it sits perfect with 1mm between it and my memory.
Also the cooling of the PWMIC has improved now when the fan is closer.

ted34 · 5 Mar 2006 at 19:51

Clint said:
The XP-120 gives me some 2-3 degrees higher temps compared to the Big Typhoon, I see now 45 degrees when priming on 2700MHz on 1.19volts in a 25degrees ambient room...idle is 34 degrees.
This is with the fan that came with the Big typhoon, it has a max of 1100rpm and are very quiet (16db).

On the DFI Ultra-D the heatsink mounts are not linear with the force of gravity, so the BT gives to much of momentum for my taste...the XP-120 is a better choice in my book.

I had to cut bits and pieces to fit the XP-120 after the IHS was removed...but now it sits perfect with 1mm between it and my memory.
Also the cooling of the PWMIC has improved now when the fan is closer.

Am guessing you mean 1.39v. I've just seen a review of the skythe ninja. It was 16degrees cooler than the xp120 under load with the same 120mm fan fitted.
http://hardware.gamershell.com/articles/scythe_ninja_cpu_cooler_review/3.html

Just been priming all day at 2.7ghz at 1.376v. All good so far and hitting 40degrees load.
Be nice to see what a nija can do

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*** Official Opteron 170 Ocing Thread ***

* Official Opteron 170 Ocing Thread *