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Evergreen Tech. CPU upgrades

I have a Dell Dimension XPS P100c computer. I would like to upgrade the CPU. I have contacted Dell and they say that the maximum speed CPU that I can put in my computer is 133MHz. I have contacted Evergreen Tech. and they say that their Spectra 400 will work in my system with a file that I can download from their site. Since I talked to Evergreen Tech., I have received an advertisment for Evergreen Tech.'s 200MHz CPU for only $59.  Their ads say that it will work with any 75MHz or higher computer. Has anyone made either upgrade to a Dell XPS P100c?
1 Solution
I'd save the $59 and put it toward a new CPU/motherboard combination or a new system.  The Evergreen chip will probably work in the Dell XPS but I suspect you will be disappointed with the performance boost.  The Dell Dimension uses a standard ATX form factor motherboard and you can by a replacement from many sources.

A new Socket370 motherboard is $60-$150 and a Celeron 400 is about $75.
These guys offer value for money upgrades too

but they caution.....

""Original DELL BIOS is written to prevent any
non-Intel CPU from working.  However,
K6-compatible BIOS versions for many Dell
systems are available from Unicore. and

Evergreen do have some type of incompatible bios support with their products, but it is going to be a bit of a kludge if the machine won't support other processors natively.

Keep an eye on this page here, and put yourself on their mailing list,

I got a K6 and ATX motherboard and fan deal from these guys for the price of that upgrade, running at 300Mhz, and it was here within a couple of days. They don't have quite such a good deal for ATX at the moment, they sell out of their good deals quickly. Looking at their listing as of posting, you can put together a Slot 1 Celeron 300 upgrade for under $100 (CPU, motherboard, fan) but I guess you will need ram too, I imagine you have SIMMs. You could get the PC Chips motherboard they have with sound and video onboard, it has 2 SIMM sockets, probably not worth doing unless you have 32Mb or more in 2 SIMMS, better to buy new RAM.


Road Warrior
I agree with the others--a full motherboard/CPU/memory swap would give much better performance for not a lot more cash. Unless you're desperately short of money, or have a *lot* of RAM in your P100, go the whole hog.
yep... I agree whole-heartedly - my father was desperate to upgrade his P75, he was going to use the same Evergreen 200 as yourself, I finally convinced him to have a Slot1 Celeron 350 - I cost about £30 more than the upgrade, but has the additional benefits of:

faster Bus
more RAM potential

upgradability (your overdrive system would be scrap in <12 months)

A nice new case! (oops, forgot to mention that, unless you can find a decent AT board)
RPDCAuthor Commented:
I accept pjknibbs'ans. as the best posted. Although I was specifically looking for someone who had made the upgrade to tell me if it went smoothly or not.  I was aware of the advantages to a new motherboard, but was reluctant to go that route since I have 80Meg of dRAM in my system. If I go with a new motherboard, I will have to buy new RAM. I was planning to keep this system, even if I leave it with the 100MHz CPU in it, and let my wife use it for wordprocessing and internet access.
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