MMX CPUs require split voltage supply. They just won't work in a standard Socket 5 motherboard hence why Pentium Overdrive MMX CPUs exist (they have the proper VRM are part of the chip).
DOS on Mac
- Thread starter V.Yakob
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But this Socket 7, and the manual doesn't anything extra, it's written simply
P133
P166 MXX
P200 MMX
I didn't see any other reservations about it.
P133
P166 MXX
P200 MMX
I didn't see any other reservations about it.
I came across a great topics (1, 2) here about the expansion card for Q950.
After ordering on January 12, I received it yesterday and it is already installed and working today.
Due to the fact that the boards are very small, the minimum order is 5 pieces.
Now DOS card on Q950 looks much better.
Thank you @alxlab for sharing your project.
After ordering on January 12, I received it yesterday and it is already installed and working today.
Due to the fact that the boards are very small, the minimum order is 5 pieces.
Now DOS card on Q950 looks much better.
Thank you @alxlab for sharing your project.
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I have a few Pentium MMX chips kicking around, if I ever get my hands on a Quadra 950, I'd like to try this as well!
Honestly not sure what I'd even use it for, but it would be a cool thing to have.
Honestly not sure what I'd even use it for, but it would be a cool thing to have.
Replaced the processor with a Reply DOS on Mac (PDS) card, which is installed in Quadra 950.
I was hoping that Intel's heating would be not much less than Cyrix's, but... This Intel is also hot as an iron, apparently I will have to put a small cooler to reduce the heating.
I took the idea here. This video also contains the results of benchmarks.
I was hoping that Intel's heating would be not much less than Cyrix's, but... This Intel is also hot as an iron, apparently I will have to put a small cooler to reduce the heating.
I took the idea here. This video also contains the results of benchmarks.
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The Overdrive chips have an onboard regulator to step down the 5V supplied by the socket to 3.3V for the DX4 CPU. It isn't the most efficient solution.
@NJRoadfan, Yes, you're right, there's a built-in voltage regulator here, so magic smoke didn't come out.
I know that it is possible to install more efficient processors, such as Cyrix i586, but this will require an adapter.
I haven't seen such adapters on the local ads site, so I decided on this option. Maybe in the future I will conduct tests with an adapter and i586.
Maybe we can install some more processors, but I don't know about it.
I know that it is possible to install more efficient processors, such as Cyrix i586, but this will require an adapter.
I haven't seen such adapters on the local ads site, so I decided on this option. Maybe in the future I will conduct tests with an adapter and i586.
Maybe we can install some more processors, but I don't know about it.