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View Full Version : 200MHz MMX... will it work in XPS P166s?



BGoins12
November 15th, 2011, 02:45 PM
Anyone on here know if a 200MHz MMX Pentium will work in the Dimension XPS P166s? They were equipped 133, 166, and 200MHz non-MMX Pentiums. I was told that the MMX requires dual voltages. Anyone know if this particular model will accept MMX pentiums?

RWallmow
November 15th, 2011, 03:10 PM
Anyone on here know if a 200MHz MMX Pentium will work in the Dimension XPS P166s? They were equipped 133, 166, and 200MHz non-MMX Pentiums. I was told that the MMX requires dual voltages. Anyone know if this particular model will accept MMX pentiums?
MMX ones do require dual voltage, I highly doubt that board will take a MMX chip straight out, that said, Intel made Pentium OverDrive chips with MMX that WOULD work in a single voltage system, I happen to own one, but its only a 166MMX chip. I have my "POD" installed in a "Netpliance i-opener" I replaced an "180mhz IDT WinChip" with it, the 166MMX may be slower clock speed, but those IDT chips wern't that great, so it performs a bit faster, plus now its got MMX extensions.

Here are the jumper settings for CPU settings on your system, no mention anywhere of MMX support, so very unlikely, unless its undocumented. (http://support.dell.com/support/edocs/DTA/_trmntor/00000011.htm#Jumpers) (If its got undocumented support for it I would put my money on "J6M1" for VRE, which is probably voltage regulator, but you could hose things up messing with it, so mess at your own risk).

BGoins12
November 15th, 2011, 03:23 PM
Yeah, I saw that earlier when I was searching. I tried locating a service manual with no luck.

Neon_WA
November 15th, 2011, 07:32 PM
does the actual socket say "socket 5" or "socket 7"

the XPS P166s had a 430VX chipset.. trying to work out any MMX boards used that chipset
one thing i did learn is that chipset ran poorly if more than 64Mb of ram was used

EDIT >> well the chipset was used in some MMX boards at least

Double Edit >> the board is not made to take MMX chips, but it will run them and eventually cook the chip

BGoins12
November 16th, 2011, 02:59 AM
It does have the 430VX chipset. I read that as well about the memory. 64MB is good enough for what I am doing.

The MMX is no big deal, only bad thing is finding a 200MHz non-MMX Pentium will be hard... they are kind of an oddball.

njroadfan
November 16th, 2011, 07:59 AM
MMX ones do require dual voltage, I highly doubt that board will take a MMX chip straight out, that said, Intel made Pentium OverDrive chips with MMX that WOULD work in a single voltage system, I happen to own one, but its only a 166MMX chip. I have my "POD" installed in a "Netpliance i-opener" I replaced an "180mhz IDT WinChip" with it, the 166MMX may be slower clock speed, but those IDT chips wern't that great, so it performs a bit faster, plus now its got MMX extensions.

The reason why the POD is faster then the Winchip is that it has more on-board cache. The i-Opener has no external L2 cache, so every little bit helps. Some enterprising folks did a split volt mod to use MMX chips directly, but I recall it being quite a bit of work and soldering. The best chips to run in the machine were either POD MMX or the rare IDT WinChip 2. Still got my i-Opener mint in the box and modded. Fun little machine and the price was right for $99.

RWallmow
November 16th, 2011, 09:39 AM
The reason why the POD is faster then the Winchip is that it has more on-board cache. The i-Opener has no external L2 cache, so every little bit helps. Some enterprising folks did a split volt mod to use MMX chips directly, but I recall it being quite a bit of work and soldering. The best chips to run in the machine were either POD MMX or the rare IDT WinChip 2. Still got my i-Opener mint in the box and modded. Fun little machine and the price was right for $99.
Yeah, cache was the big factor on the POD, also I believe it had better FPU than the winchips. I read about the split voltage mods back in the day, but I am not good with surface mount components. I want to say some folks got a certain AMD K6 or K6-2 chip working (I want to say 300 or 333AFR? model) in those i-openers even. Paid $99 for mine at circuit city back in the day, tossed a hard drive in it, some more ram and that POD166, and it was our kitchen computer for a few years (ordered from "simon delivers" groceries back in the day) . I haven't used it in years now, its boxed up in storage now.

RWallmow
November 16th, 2011, 09:43 AM
It does have the 430VX chipset. I read that as well about the memory. 64MB is good enough for what I am doing.

The MMX is no big deal, only bad thing is finding a 200MHz non-MMX Pentium will be hard... they are kind of an oddball.
You might have about as much luck hunting down a non-MMX 200 as you would hunting down a POD-MMX 200.

Have you thought about extra cooling (probably don't even need extra if its already got decent HS/Fan combo) and trying to clock the current 166 up to 200?

Chuck(G)
November 16th, 2011, 09:44 AM
The MMX is no big deal, only bad thing is finding a 200MHz non-MMX Pentium will be hard... they are kind of an oddball.

Does it have to be a Pentium? Could you use one of the Cyrix/IBM/AMD clones?

BGoins12
November 16th, 2011, 10:55 AM
Probably. Most systems recognize them.

Neon_WA
November 16th, 2011, 07:29 PM
cheapest one is in same state as you

http://www.ebay.com/dsc/i.html?_nkw=%28sy045%2C+fv80502200%29&_sacat=0&_sop=15&_odkw=%28sy045%2C+su114%2C+fv80502200%29&_osacat=0&_trksid=p3286.c0.m270.l1313&LH_TitleDesc=1

Neon_WA
November 16th, 2011, 07:49 PM
You might have about as much luck hunting down a non-MMX 200 as you would hunting down a POD-MMX 200.


Actually the 200 MMX OD is the most commonly still found (I have 7 in systems & as spares) and next most common is non-MMX 166

Chuck(G)
November 16th, 2011, 09:06 PM
Okay, so you prompted me to look. :)

I happen to have a chip labeled "Intel Pentium i200", no MMX.

What do you have to trade for it?

Neon_WA
November 16th, 2011, 10:54 PM
if the sSpec is SL25H, SL24Q or even SY044 I will trade with you and even send a free one to RWallmow

Chuck(G)
November 17th, 2011, 06:47 AM
The complete chip labeling is:



Intel
pentium
FV80502200
SL24Q/VSU
ICOMP 2 #=142
A4
C646103W-0393
(C) '92 '93

RWallmow
November 17th, 2011, 08:12 AM
if the sSpec is SL25H, SL24Q or even SY044 I will trade with you and even send a free one to RWallmowBGoins12 is the OP, the one who needs one, I am happy with my 166MMX OD ;-)

Thanks though :-)

Neon_WA
November 17th, 2011, 02:34 PM
The complete chip labeling is:

FV80502200
SL24Q/VSU

Let me know what chips are on your wishlist.. I will probably have a spare of one of them at least


BGoins12 is the OP, the one who needs one, I am happy with my 166MMX OD ;-)

Thanks though :-)

oops.. copy n pasted the wrong id lol

Chuck(G)
November 17th, 2011, 05:55 PM
Well, now I'm really confused over who wants what.

But if we're trading like-for-like, I'd like to exchange something that's not x80, x86, 68K or PPC-based. Perhaps a National PACE, SC/MP, RCA 1802 or maybe one of those Russian LSI-11 clones.

You get the idea.

Neon_WA
November 17th, 2011, 06:16 PM
Perhaps a National PACE, SC/MP, RCA 1802 or maybe one of those Russian LSI-11 clones.

You get the idea.
Not ones I have spares of.. but will check what else I have similar

BGoins12
November 21st, 2011, 02:52 AM
No more confusion... I got a 200MHz Pentium off eBay for $.99.

RWallmow
November 21st, 2011, 06:19 AM
No more confusion... I got a 200MHz Pentium off eBay for $.99.
That's a good price, can't beat that ;-)

Chuck(G)
November 21st, 2011, 06:23 AM
If you're going the eBay route, please check first and not bother the people who'll look for these things.

Sigh. Back into the parts box with this one.

animekenji
November 27th, 2011, 10:51 AM
Just for the record, a Pentium 233MMX (or any Pentium MMX, for that matter) with split voltage will usually run fine in most single voltage motherboards and they're so cheap and easy to get right now that if you should burn one up from overvolting it's no big deal. The 200mhz K6 is single voltage with MMX and will also work as an upgrade for a non-MMX Pentium. If you're putting them in place of a WinChip, though, you're going to need more cooling as they run hotter than a WinChip. In something like a Netpliance I-Opener, that is most likely going to mean some case modding to make the heatsink fit.

animekenji
November 27th, 2011, 10:57 AM
That's a good price, can't beat that ;-)

How much was the shipping, though? .99 with $3-$4 shipping isn't such a good deal anymore.

200mhz Pentiums aren't nearly as hard to get as they used to be. They were primarily an OEM part and as such were hard to find until someone upgraded or parted out an old machine. Now all those 200mhz OEM boxes have been stripped and the CPU's that were in them flooded the market and drove the price down. I pity any collector who bought one when they were still trading at $100+ thinking they were rare.