First post, by PC@LIVE
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- Oldbie
I return to a discussion of some time ago, on coprocessors for the 386DX CPU.
Currently I have two MB with AMD 386DX-40 CPU, one without L2 cache and with Intel 387 16-33MHz coprocessor (but which goes synchronous ie at 40MHz), the other has 128KB of L2 cache and is without coprocessor.
I thought any 387 at 40MHz would be fine, but it may not be, some give problems or fail to go to 40MHz.
So excluding the intel, which still works even if overclocked, the Cyrix ones remain, but of these there are several models, and this perhaps could be a problem.
However, among those at 40MHz I think the Cyrix 387+ is right, there would be the fastmath but I don't know if it is for the DLC (the 486 to upgrade the 386), I would avoid the Cx87DLC instead because in my opinion it only goes in couple with the 486DLC.
Obviously I exclude the Weitek because if I am not mistaken there are not at 40MHz, and therefore it is not certain that they can go into overclok like Intel.
AMD 286-16 287-10 4MB HD 45MB VGA 256KB
AMD 386DX-40 Intel 387 8MB HD 81MB VGA 256KB
Cyrix 486DLC-40 IIT387-40 8MB VGA 512KB
AMD 5X86-133 16MB VGA VLB CL5428 2MB and many others
AMD K62+ 550 SOYO 5EMA+ and many others
AST Pentium Pro 200 MHz L2 256KB