Peter Simmonds wrote on 17/06/15 20:58:
Just wanted to get your experienced opinions on this.
Most of the sketchy documentation says it can be upgraded to a
quad-core xeon 1333 mhz bus speed 4mb cache (x2)
Memory bus sounds about 667Mhz
The motherboard has a single VRM socket
Are there any factors that the motherboard dosen't care about, such as
cache size or clock speed (after multiplier)?
I'm realizing that the limiting factor would be the capabilities of
the onboard VRM. Has anyone had any luck pushing that beyond it's
specification?
how about if I look up datasheets for the newer generation CPU's and
go by Wattage, voltage and current, and try something with lower
voltage and current than the original specification?
Check out the IBM Redbook to see the highest CPU that model came with.
Then its a matter of finding the CPU, and a matching VRM, and a heatsink
that fits.
Often its cheaper to find a second identical machine and scavenge the
appropriate parts.
I have a 7973 in production with dual quad cores.
model name : Intel(R) Xeon(R) CPU E5405 @ 2.00GHz
If you're after modern performance, buy a new machine. This IBM will be
at least five years old.
--
CF
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