well, i electrocuted my last motherboard (a fine atiquated pcchips) and i had to go for something very cheap...ok, i had to basically dig into a pc shops dumpster to get this one. It is a (Intel, possibly) P51430VX-250DM Explorer II Easy Speed yada, yada, etc...

It has a (ONE) DIMM Slot and 4 SIMMS. I had been running with this...a 32meg dimm and 2 8meg simms and one 4 meg simm with a grand total of 48 (WOW!) megs of ram. Of course, this runs fine with my old standby, Win95, but, I find it quite lacking with the newer linux distros. Its even hard to run the old suse 6.2 with (at the moment i can hear the old worn down hard drives scramblimg for more swap space as i write this).

What I did was this: I bought a PC100 64meg ram dimm hoping to get some more system memory for linux. I noticed in the mobo literature that came with this thing, that the bus speeds went like this 50, 55, 60, 66, and 75 (I have an intel mmx 200mhz cpu). Upon reading this, I noticed that the bus speed of 75 is incompatible with these early pentium processors and, in fact, the 200mhz model i have is clocked at 3x 66mhz.

So, I tried this new dimm and only 16mb was read! nothing more. I put my older 32meg stick and it worked fine. Do i need a pc66 ram stick for thios to work? any help would be greatly appreciated.

Hi !!!

Check if your motherboard has support for only pc66 or other frec. in the bios. If it has support change the ram speed to pc100-133 or so, if not you need to use only pc66 sticks (or buy a better motherboard <-- just kidding).

Some motherboards (and mem sticks) does not have problems when combining pc100-133 with pc66 sticks, but some others do. Hope this will help.

the p51430vx-250dm explorer II main board provides 4 SIMM slots and 1 DIMM slot for providing flexibilaity memory size from 8 mb up to 128 mb main memory. please do not plug in two different brands of SIMM on a bank simulataiusly.

(a pic of the layout with discription goes here)

if using DIMM and SIMM together you must install DIMM as the table


DIMM bank 0 Bank1
None single bank or single bank or
double bank SIMM double bank SIMM


SIngle bank Single bank single or double
DIMM

Double Bank none single or double






note

1 when using DIMM together with SIMM it is strongly regcommended that u use bank 1 SIMM 3 and 4 to avoid conflict with DIMM and SIMM

2 please consult vendrs for vendors to see iuf double or single bank SIMM/DIMM