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Old February 7th 06, 01:27 AM posted to alt.sys.pc-clone.compaq
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Default Compaq Deskpro EN 6266 CPU Upgrade

Nick Le Lievre wrote:
Nick Le Lievre wrote:
Nick Le Lievre wrote:
Nick Le Lievre wrote:
Nick Le Lievre wrote:
Nick Le Lievre wrote:
I`m thinking about putting a cheap PII450 Slot 1 CPU upgrade in
this machine it is possible. I had a quick look at the current
CPU a few weeks back and it doesn't look like a Slot 1 CPU
although it must be - its mounted flat instead of upright. I
haven't bothered to take a closer inspection but the Slot 1's I
remember used to be mounted vertically into a Slot 1 socket. Is
this different or am I looking at it wrong ?

I found this post where a person is trying to do a similar thing
http://tinyurl.com/7ddnf he says the retention mechanism is only
for SEPP (Celeron) CPU but the P2 266 already in there must be
SECC surely "Since the processor is on its side in the computer,
then the off-the-shelf Universal Retention Mechanism (URM) clips
that can be bought won't work (because they are vertical only.)"

The processor is on its side so will a standard SECC P2 Slot 1 450
which I have always thought mounted vertically fit in this Deskpro
EN 6266 on its side (its has a 440bx chipset apparently eg
supports 100mhz).

Yes it appears the Slot 1 could be mounted horizontally or
vertically http://tinyurl.com/bpneu although I never saw it
horizontally before. Question is can I mount a standard slot 1 p2
450 horizontally in this system what about rentention mechanism ?

There is stories of people with Deskpro EN 6350 and 6450 upgrading
to P3 550 and P3 1ghz http://tinyurl.com/7ma2u if my 6266 has a
440bx motherboard as has been suggested it should be the same as
the one in the 6350 and 6450 and theoretically allow me to go up to
P3 1ghz (100mhz bus).


Had a look at the motherboard and it has a dip switch where you can
set either 66mhz fsb or 100mhz fsb so it must be a 440bx and not the
440lx which only supports 66mhz. I tried to remove the CPU but
couldn't figure out how to do it - anyone knows how to release the
CPU on these models where its mounted horizontally. Also am I going
to have a problem with the CPU fan connection ?


Figured out how to remove the CPU its easy really underneath was
an Intel 443BX AGP chip which I guess must be part of the 440bx
chipset. The CPU has a foxconn heatsink and no fan - and there is no
CPU fan connection on this motherboard.


One last thing before I take the plunge and get a PIII 600 slot 1 100mhz
with standard heatsink to run without connecting the FAN (should be ok only
hotter) I want to know what the wire from the heatsink to the motherboard is
on this Compaq. Its not a CPU fan wire but whats it for - somebody told me
this needs to be connected for the PC to boot I havent tested that out yet
but its connected to the heatsink and I`ve never seen it on a PIII Heatsink
before.

--
And to all those opposed...
Hmm...well