My PC has Socket 423 motherboard. It seems like future P4's
will be Socket 478. If I want to use P4 Socket 478 CPU,
do I need to change the motherboard, or could there be a cheaper
solution such as a converter similar to celeron to pentium?
Thanks.
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"Edward J. Neth" <ej...@yahoo.com> wrote in message
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I think that would be more related to physical issues with the converter.
Beyond the electrical engineering problem, there's an even more simple
problem that the damn thing wouldn't fit right under the heatsink! I
suppose that Powerleap could package the converter with a new
custom-designed heatsink that will fit into Intel's retention
mechanism but will also accommodate additional height of the socket
converter, but that again raises the cost and reduces the potential
market.
Still, the electrical signals are likely what would kill this project
right from the get-go. 100MHz QDR buses seem to me like they would
tend to get REAL finicky if you just threw some random socket and PCB
right in the middle of things where it wasn't expected.
To be fair to PowerLeap, their products DO make sense in a VERY
limited set of situations. There are a lot of old systems out there
that would require MUCH more then a simple motherboard swap to be
upgraded. I'm not just talking about systems which have built in
graphics, sound, etc., or even those that have a proprietary
motherboard form factor, but the sort of industrial systems that are
mostly a basic PC except for one very specific card that simply can
NOT be replaced for less then a few thousand dollars. I've heard of a
handful of people who have PCs that they figure it would cost at least
$25,000 to replace the system, but these PowerLeap cards give them a
bit more horsepower while being only somewhat overpriced.
Still, for 99.9% of all situations, you're quite right, PowerLeap and
ridiculously overpriced, and I wouldn't exactly bet the farm on their
reliability either.
...if they can be replaced at all. IBM and Kingston did some
upgrade cards for PS/2s using the Blue-Lightning processors.
There were a *lot* of these things sold. They weren't cheap
either.
Another company that makes upgrades is Evergreen. They're also
on the high price side. Evidently there is money to be made
here.
> Still, for 99.9% of all situations, you're quite right, PowerLeap and
> ridiculously overpriced, and I wouldn't exactly bet the farm on their
> reliability either.
I've worked with the PowerLeap folks. They know what's
happening. The ones I looked at were well designed and good
quality. Of course it's hard for them to know what system their
widget is going into, so it's hard to guarantee the system was
designed properly to begin with. Adding interposers won't help.
----
Keith
Add me to your statistics. Normally I think nothing of a
motherboards swap, but when it came time to upgrade my
wife's PPro 200 MHz system -- with a PCI Video/TV-tuner,
SCSI Jaz, SCSI CD-R and SCSI scanner, plus a host of voodoo
software installations -- I went with a PowerLeap 700 MHz
Celeron upgrade. My constraints were: do the upgrade right
before April 15, without compromising the TurboTax
installation. In that case, PowerLeap fit the bill, since I
didn't have 10 hours of free time to diddle with 1998 SCSI
drivers, etc.
Intel will likely to change their socket type again soon.
The best decision seems to wait until then.
Overpriced as they are, it is a lot cheaper to upgrade a, for example,
Pentium Pro to Celeron 766 for $150 than it is to buy a new case (as most
Socket 8 used AT, and most Socket 370 use ATX) [$60], new board for Socket
370 [$80], and the Celeron 766 [$50]. Plus, you have to throw some SDRAM at
it, as Pro's were out before the days of PC100, so you can figure another
$50 for 256MB. Total: $240 for new board + CPU, $150 for upgrade.
If the $90 makes a difference, then it is practical. But, the $240 would
yield much more performance, due to the video and memory subsystems, plus
the hard drive (socket 8 can be figured to have ATA/33).