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Old 486


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Just for fun. I have an old 486sx 25. the mobo is a via486-vc. the cpu is soldered to the board and it has one cpu upgrade socket and i think one overdrive socket. it has jumper settings for 486SX, 487?? and 486DX/2. If i get a DX/2 cpu and stick it in it should work, but does anybody know anything about the other socket? If it is an overdrive socket, do i need a 486DX cpu or do i just need an overdrive socket?

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Guest FxXP
so if i just put a DX cpu in it thats all i have to do?

472077[/snapback]

 

You can't. You mentioned that the CPU was soldered to the board. The math-co upgrade is the only one you can do to the board. However, check to see if the socket is an LIF (low-insertion force). If so, you can pry the processor out and put in a DX-2. The DX-2 is double-clocked to DX.

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Guest FxXP
Or i could just use the 486 motherboard as a frisbie and get a $10 pentium 1 mobo and cpu to play with. Thanks for your help.

472648[/snapback]

 

Believe it or not, the AMD DX4's were faster then the Pentium 75 processor back in the day.

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Hmmmm... seems like yesterday :rolleyes::P

 

Are you sure the 486 is 'soldered' on, and not inserted into an earlier style ZIF socket? (as in the picture below)

 

may09096fb.jpg

 

For reference, the following picture is an actual DX2 OverDrive PR66 ;)

 

may09105js.jpg

 

Oh yeah, FxXP didn't the P75's have some mathmatical error/issue? <_<

Edited by tazwegion

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