Mixing Processors

O

Oline61

Gawd
Joined
Aug 8, 2005
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Excuse my noobishness, I am mostly familiar with building desktop systems of the skt 939 era or newer. I have a Dell PowerEdge 2450 server with a single 866 Mhz PIII that I know very little about. I have been playing around with it and am interested in adding another processor. I am having a very hard time finding another 866 MHz PIII on eBay. Would it be possible to put a 966 or 1000 Mhz processor alongside the current 866 MHz processor?

Also, if anyone has an 866 MHz PIII that they would be interested in trading, I have the PERC3 RAID controller that came with the server and am willing to trade it.
 
As far as I know, you can not mix processors in dual setups.

Until recently, you even had to match the model & revision.

It may be easier to find out exactly which cpus your motherboard supports and buy 2 off ebay that match.
 
Thanks for the response.
It looks like this project is going to be more expensive than I anticipated. The only processors I can find that would match my current one are more expensive than what I paid for the entire server. It looks like my best option is to wait until I can find someone selling a cheap matching pair.

Also, the RAID controller is a PERC 2/DC, not the PERC3 I mentioned in the op.
 
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Currently, all desktop systems (including your old one) use SMP, Symmetric Multi-Processing. That means all the processors have to be the same everything, including speed, as they operate in sync. This is not how multi-processing has to be done, you can have an asymmetric environment, but it is harder to implement so you only see it in high end supercomputer type systems (and even then rarely).
 
I have a (matched) pair of PIII 1Ghz chips I used to use in an SMP system. I will sell them to you if you want. Make an offer and I can ship both.
 
extide said:
I have a (matched) pair of PIII 1Ghz chips I used to use in an SMP system. I will sell them to you if you want. Make an offer and I can ship both.
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He didnt want to buy the ones that were $10.

Read the thread next time :rolleyes:
 
And it looks like he'd need 133Mhz slotkets too. Which are going to cost more than the processors, if you can even find them...
 
Sycraft said:
Currently, all desktop systems (including your old one) use SMP, Symmetric Multi-Processing. That means all the processors have to be the same everything, including speed, as they operate in sync. This is not how multi-processing has to be done, you can have an asymmetric environment, but it is harder to implement so you only see it in high end supercomputer type systems (and even then rarely).
Click to expand...

i ran celeron 366 and 466 in my abit bp6 with win2k SMP. under every other situation you are correct! the xeons and everything else have to matched. i had plenty of people tell me it was impossible but it did work. just put the slower processor as the primary and the secondary processor just never hit 100% usage.
 
I have a matched pair of SL4BS slot1 1GHz 133fsb P3s I might not be using if you are interested.
 
gesicht said:
i ran celeron 366 and 466 in my abit bp6 with win2k SMP. under every other situation you are correct! the xeons and everything else have to matched. i had plenty of people tell me it was impossible but it did work. just put the slower processor as the primary and the secondary processor just never hit 100% usage.
Click to expand...

I'm sure the board just clocked them both the same...
 
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