Some people made 486 socket to 386 adapters so this is probably possible to do ... but that would be probably quite hard to make though

I made some research and such converter already exist. It was made by "friendtech"

https://groups.google.com/forum/#!msg/alt.sys … 2w/cqZSN1-23msJ

Want to upgrade your CPU? I just plugged in an intel Pentium 120 into my old gateway p5-60. So if your';e considering the intel […]
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Want to upgrade your CPU? I just plugged in an intel Pentium 120 into
my old gateway p5-60.
So if your';e considering the intel Pentium "Overdrive," I would suggest
against it. Go to LIBI industries (http://www.libiind.com), and check out the
"Tech Support" Page. They sell a module, made by "FriendTech"
Computers, that will let you use PEntium 90, 100, 120, 133, 150, 166,
180 (if you want to clock at this speed) and 200. You can just plug it
in and go, no drives/bios upgrades, etc, since the chip still runs at
60/66MHz externally - the MB doesn't know the diff.

The module is a voltage converter/clock multiplier, so all you need is a
pentium chip and you're up and running.

My converter/Pentium combo from LIBI cost ~$230 - a lot less than an
Overdrive, at last check. And installation is just as simple.

System is stable and running just fine as I type this, I'll let you guys
know if something goes wrong... (knock on wood.)

Interesting - never heard about that adapter.

PowerLeap has built one: PL-54CMMX-233. It supports up to MMX233. Not sure about the compatibility with K6.

lazibayer wrote:

Not sure about the compatibility with K6.

It's compatible with k6. http://www.rosperos.com/programy/pl54Cmmx3.pdf

lazibayer wrote:

PowerLeap has built one: PL-54CMMX-233. It supports up to MMX233. Not sure about the compatibility with K6.

PowerLeap was a weird brand. They made strange converter chips such as socket 370 to socket 8. It'd be cool to mess around with some of them.

From what I've read/experience, the Powerleap adapter is hit or miss. A lot of Socket4 boards seem to be pretty picky about upgrades. The POD5V133 is probably the way to go if you want to play it safe.

Now what I think would be cool is a way to jam a socket4 chip onto a socket7 motherboard.

Found pics:

The part name is PL54C-MMX and can be bought with or without a processor. This is quite a sophisticated adapter that theoretically allows one to upgrade a Pentium 66 to a 233MHz Pentium MMX. Unfortunately, I've had no luck whatsoever with it on any of my complexes.

http://ps-2.kev009.com/madmax/madmax/t4p6066.htm

I installed the PL54C-MMX in a OPTi based Socket4 system. The internal cache is automatically disabled by the BIOS using this adapter regardless of which CPU is installed. Additionally, the K6-2+ CPU that I had intended to use did not even allow the system to POST.