I have a PODPMT66X200 SL2FF PODPMT66X180 SL2RL overclocked to 200 MHz in my Intel AN430TX Socket 7 system

red-ray wrote on 2025-05-16, 18:37:

I have a PODPMT66X200 SL2FF in my Intel AN430TX Socket 7 system

I appreciate the response! Was it a solid upgrade from what you had prior?

As far as sockets, I found this snippet which leads me to believe the PODMT66X200 can be used in socket 5 as well as socket 7?

The PODPMT adds the required voltage regulation and as a side effect can also be used in Socket 5 systems, since the onboard voltage regulator takes care of the biggest difference between Socket 5 and Socket 7.

Would love to hear if anyone has actually installed this in a Socket 5 system.

CosmoJoe wrote on 2025-05-16, 18:45:

Was it a solid upgrade from what you had prior?

I can't remember, it may well have been in the system when I got it over 20 years ago.

I've wondered why Socket 5, technically, only supports 75, 90, 100, and 120 MHz processors. Per the datasheet (http://datasheets.chipdb.org/Intel/x86/Pentium/24199710.PDF p. 69):

Two upgrade sockets have been defined for the Pentium processor-based systems as part of the processor architecture. Socket 5 has been defined for Pentium processor 75, 90, 100, and 120 MHz-based systems and is defined in the Pentium® Processor Family Developer’s Manual, Volume 1. Socket 5 does not support upgradability for 133 MHz or higher processors.

Is it a true issue like power draw? That doesn't make sense, as a quick check suggests the 133 was more power efficient than the 120. Or additional multiplier jumpers not being defined for it?

If it's a legit issue, I would use caution as the datasheet I linked above suggests that the OverDrive 200 needs a socket 7 and not 5.

This is what is really odd. I find conflicting info, for example:
http://knoppix.net/store/RARE-Vintage-Intel-P … 6936970814.html
This says it upgrades socket 5 and early socket 7 computers.

POD 200Mhz
This thread seems to indicate it will work. I might just YOLO it and see what happens!

Confirmed working! Had to adjust the jumpers for 133MHz (66Mhz, x2 multiplier). BIOS POST shows it as a 133Mhz Pentium. CPU-Z shows internal clock as 200Mhz!

jakethompson1 wrote on 2025-05-16, 19:08:

I've wondered why Socket 5, technically, only supports 75, 90, 100, and 120 MHz processors. Per the datasheet (http://datasheets.chipdb.org/Intel/x86/Pentium/24199710.PDF p. 69):

Yes many socket 5 boards had very weak power regulators and would many times retroactively delist support for p166+. (Hard to imagine this was a real problem if you stuck to Intel CPUs)

A Socket 5 motherboard may or may not work correctly with a p120 because the definition of how the multiplier pin functions changed relatively late. In such a board setting 2x will still get you a 1.5x multiplier.

Some socket 5 boards will drive a regular p133 even though it’s not listed which was considered the first of the “next generation “ after the p75-120.

My view on the issue is that nothing above 100mhz existed when many socket 5 boards were manufactured and 120mhz was expected but forward looking so its lack of support isn’t a real issue, p133 just didn’t exist yet.

Back in the day the only reason to buy a real Intel Pentium overdrive was because you had an early socket 5 board that lacked multipliers, honestly can’t think of any other reason someone would use the Pentium 125 or Pentium 180 overdrives other than having an old board that was missing the needed jumpers.