Intel VX Chipset Upgrade

[PrinceXizor]

I have an old VX Chipset motherboard (can't find any info on the actual mb, its from an NEC Ready 9702).

The chipset p/n is SB82437VX.

It looks like the motherboard has dual voltage planes (i.e. one jumper for "processor voltage" and another for "core voltage") and jumpers (i.e. clock dividers) for 200Mhz (currently has a P-166 in it).

Anyone have any info on this specific motherboard? redbeard1 already gave me a nice link to a site for upgrading VX chipsets. Very nice.

Also, how do I tell the memory on my 72-pin SIMMS for this thing? It has 2 Simms already (with 8 chips). Don't know if these are 16MB or 32MB (highly unlikely that they are 64MB, since these were pretty rare in their heyday).

Thanks for the help. I have a bunch of part numbers written down from this beast. If you need more info, either post it here, or send me a pm. Thanks!

P-X

 

[Auric]

Another reason they would not likely be 64MB is that the VX was technically limited to taking full advantage of more than 64MB total. Easiest way to find out is to use software like CPU-Z or such or there are others that will read the full SPD like Sandra. That class of CPU was not locked and the mobo jumpers can prolly configger the P166 for 200MHz. An ATA100 controller card and modern HDD will really pep up that system.

 

[PrinceXizor]

Thanks...there's ways to sneak in a K6-2 chip in here as well...anyone whose done this before or more important, has any specific info on the NEC 9702 motherboard that they used with the P-166 would be great. Can't seem to find a relevant part number on the board.

P-X

 

[redbeard1]

Old 72 pin simms pretty much followed a pattern that you could guess with to determine the ram size. 4 meg and 16 meg chips were single sided with 8 or 9 chips depending on whether or not they were parity. 8 meg and 32 meg were double sided, with 16 or 18 chips. I suppose there are exceptions to anything, but this was pretty consistent.

64 meg sticks were somewhat rare, and boards that could use them were even more rare.

My hope would be that you have two 16 meg sticks.

 

[PrinceXizor]

Thanks for the info Redbeard1!

They are singlesided with 8 chips.

I do have memory specs for this board (about the only thing I could find)

72-pin
60ns
non-parity
EDO

4 slots, maximum 32 MB per slot = 128MB; but as has already been pointed out, only 64MB cacheable.

Sticks I have are labeled MC-424000F32B-60; 9639VP0416.

P-X