Is it possible to replace the nec v20 processor with an nec v30 processor?
Or do i need a special motherboard for this that accepts V30 processor?
~ At least it can do black and white~
Nope. It can't be done.
The V30 uses the same pinout as an 8086.
The V20 uses the same pinout as an 8088.
If you want to use a V30, you will first need an 8086 motherboard.
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Ok thank you, then i know enough.
I have an new Question..
I am using an V20 processor now. And it seems to be fast enough if i read Anonymous Cowards site:
https://sites.google.com/site/misterzeropage/
It can run on 4.77mhz or 12mhz in turbo.. On the above site says that 12mhz can be give some conflicts with scsi cards. (because cpu speed is the same as bus speed)
If i put an co-processor in, would the basic turbo processor 12mhz speed the same as the speed of the co-processor @10mhz?? And does the comparing with AT speed goes higher with co-processor installed?
~ At least it can do black and white~
I strongly advise against using an FPU with your 12MHz chip. The relationship between the 8086/8 and 8087 is apparently quite a bit different than with later x86 designs. As it turns out, the 8087 runs more in parallel than as a coprocessor. Even when the 8087 is not in use, it puts out impressive amounts of heat. At 10MHz the FPU is already running at the edge of it's design limits. If you push it 12MHz, in the worst case you might cause it to overheat and crash. It will take the 8088 CPU down with it. In the best case, it will work but give faulty results.
It would be much better if you just replaced your 36MHz crystal with a 30MHz one to run the system at 10MHz.
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
