Welcome to the new Cases and Cooling forum

[Moridin]

Originally posted by Mandorallen of Molynnr:
You can run the processors of a dual processor motherboard at different speeds right? That'd be cool since you'd be able to get the max O/C out of both of them.

I doubt it. It certainly isn't possible with Intel systems. It actually may be technically possible with AMD systems due to the Point to Point nature of the EV6 bus, but even if it is I don't think you would ever see it happen. SMP by its very nature implies that the processors are equal.

I can also see it messing with the OS in terms of allocating threads to a processor.

This means that a DP system will only OC as well as the slowest processor.


------------------
Life is complex. It has real and imaginary parts.

[Moridin]

Originally posted by Galen of Edgewood:
Non-mod of this forum, non-admin test...

You’re a little late



------------------
Life is complex. It has real and imaginary parts.

[Galen of Edgewood]

Originally posted by Moridin:
You’re a little late

No I wasn't.... I tried this several times very early in the day. Then I got busy at work....

------------------
"Being disintegrated makes me ve-ry an-gry!" <huff, huff>

Become one of the few, the proud, the SETI Team @ SE.

[tu2thepoo]

So would we post any overclocking exploits here (to explain the cooling we used), or still in CPU/OC?

------------------
My Com-Pewter at Mr.White's Place
The Idiot Brigade Homepage
Download NvMax here

The Sharky Counterstrike Team meets here, for now

[Mandorallen of Molynnr]

Originally posted by tu2thepoo:
So would we post any overclocking exploits here (to explain the cooling we used), or still in CPU/OC?

No, that goes in CPU/OC.

How you modded your case to get that overclock goes in here.

Moridin, I'm just looking for an article that I read on asynchronous CPU speeds in MP mainboards. I'm almost dead sure that it was possible to have a Duron and a Thunderbird in the same motherboard, and at different speeds.

------------------
Knight of the OC Crusaders

Celeron 633@1020/1070
EPoX BX7+
256MB PC133 RAM
Gigabyte Geforce 2 MX 250/180
30GB IBM 75GXP

MSN Messenger : [email protected]

[AMD Soldier]

Congrats ynd69!!

Wow this should be an interesting place here, I wonder what's going to happen to general discussion now..

------------------
*******************
Games and Stuff
My Specs
*****AMD Soldier*****

[kid A]

Nice one. Congrats to ynd69, too

------------------
Now listening to:
Sahara Hotnights - Jennie Bomb

[Mandorallen of Molynnr]

Originally posted by Moridin:
I doubt it. It certainly isn't possible with Intel systems. It actually may be technically possible with AMD systems due to the Point to Point nature of the EV6 bus, but even if it is I don't think you would ever see it happen. SMP by its very nature implies that the processors are equal.

I can also see it messing with the OS in terms of allocating threads to a processor.

This means that a DP system will only OC as well as the slowest processor.

k, here's what I found :

The board showed stable operation with single and dual AthlonMP processors as well as with single/dual Athlon processors based on the Thunderbird core and single/dual Duron processors. It even supported the 'abuse' of two Thunderbird Athlons with different clock speeds. I tested the K7 Thunder with an Athlon 1200 plus an Athlon 1333 and it ran both processors at their respective speeds without major problems, even showing improved scores in SMP-capable benchmarks. However, neither 3Dmark2001 nor Sysmark2001 Office Productivity would run properly with this configuration. We should note that theoretically the point-to-point processor bus of Athlon actually allows the operation of two differently clocked Athlon processors.

From this article : http://www6.tomshardware.com/mainboa...605/index.html

So I guess it's possible but as stated it might give problems in certain applications.

------------------
Knight of the OC Crusaders

Celeron 633@1020/1070
EPoX BX7+
256MB PC133 RAM
Gigabyte Geforce 2 MX 250/180
30GB IBM 75GXP

MSN Messenger : [email protected]

[Moridin]

Thanks that is very interesting.

So it seams I wasn't to far off , this was about what I expected. On the other hand it doesn't rule out asymmetrical processor speeds, so maybe there is hope after all. I still don't think we will ever see this in supported configurations though.

Just as a side note, I saw one article where they benchmarked a 760 MP with duel Athlon (not Athlon MP) processors and found that it often under performed a single Athlon in the same board. This was true even for some multi-threaded applications.

(Sorry, I looked for the link, but couldn't find it.)

I would think the biggest problem to solve would be cache coherency which likely explains some apps not working and poor system performance with non-MP Athlons Athlons. I will probably re-post this in HT, as we seem to be getting a bit off topic for cooling Still it is very interesting.


(Hehe we started on water coolers and made it all the way to cache coherency )

BTW I would think two pumps would be the way to go, but what world that involve, and how noisy would it be?


------------------
Life is complex. It has real and imaginary parts.

[This message has been edited by Moridin (edited July 09, 2001).]

[Mandorallen of Molynnr]

Interesting, I don't know why one Thunderbird on the same board would perform better than Dual Thunderbirds? Was it a reasonable gap in performance, or just above neledgeble?

As for the pumps, you'd have to get a reply from White, Duckman, ynd69 or someone else who is heavily into water cooling. I'm not there yet. Yet.

------------------
Knight of the OC Crusaders

Celeron 633@1020/1070
EPoX BX7+
256MB PC133 RAM
Gigabyte Geforce 2 MX 250/180
30GB IBM 75GXP

MSN Messenger : [email protected]

[ynd69]

Moridin, take a look at this:
http://www.procooling.com/articles/index.shtml

Check out the first few articles, they contain information about water cooling two cpus (Dual celerons in their case).

They used two inline pumps with 1 radiator I believe. Anyways should help you out.

------------------
~ Knight of the OC Crusaders ~

My Specs at OC Gurus!
ynd - Young and Dangerous, forever.
Join SE Overclockers Seti@home Team!!

[krazie662]

It is nice to see this section in SF. It's one i've been waiting for, and i'm glad to have it now that oT is gone

------------------
My Rig