I built a P1 system (P100 mhz) with an Intel Advanced Endeavor motherboard, using 2x 32mb EDO memory sticks, 60ns, same brand. (32MB Hyundai HYM532814 BM-60 )
The board boots but only one module is detected and the bios, Dos and Win98 show 32MB total sysem RAM. I have identified which stick is dead by testing on two other P1 motherboards.

Now Pentium 1 systems need a pair of 32bit simms for the 64bit memory bus, so I though i'd need to buy another stick to get a working pair but.......the system is still booting and working?

I'm wondering how this system can boot with 1 dead stick and one working stick. I have run memtest 4.3.7 for a few hours and it has multiple passes with no errors. Ram speed is 84MB/s which is very fast and full speed for a P100, I thought maybe I would get half this speed as only 1 stick is working and the 64bit memory bus would be slowed down to 32bit accesses.

I don't need to order another 32mb edo module now but i'd like to understand how the above is possible.