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View Full Version : Mixing C1 & D1 Stepping of Socket 604 Xeon


wwswimming
12-06-2009, 01:32 PM
I have a Prestonia Socket 604 Xeon and a Tyan that will take 2 Xeon's. I'm thinking about buying a second Xeon ... given that the price has finally come down to $20.

The detailed spec for the CPU I already have ( from CPUz - the CPU has a heat sink on it, so I can't see the "SL***" number ) -
Family F
Model 2
Stepping 7
Rev. C1
Voltage - 1.456

( The voltage fluctuates, sometimes it reads 1.440. )

I think it's an SL6GD, sort of by process of elimination from looking at the Chiplist web page.
http://www.chiplist.com/ChipList2/tree3f-s_spec_stepping_code-SL6GD--/

The one I'm thinking about combining it with -
http://www.pacificgeek.com/product.asp?ID=856773&C=201&S=1085 (http://www.pacificgeek.com/product.a...3&C=201&S=1085)

"Model SL6VL"

... and I find that the SL6VL is a 1.50 Volt D1 stepping.

THE QUESTION -
* is it bad Xeon methodology to use a C1 stepping and a D1 stepping on the same motherboard, for this generation of processors (socket 604)?

Srek
12-06-2009, 02:20 PM
I would try to avoid mixing xeons with different steppings. I don't know how flexible mainboards are with processors for which different patches are neccesary, to the best of my knolwedge they aren't flexible here at all.
In your case i would get two new processors of the same stepping to avoid possible problems.

Cheers
Björn

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