One SIMM not being recognized by BIOS

[markadams1]

Help please!

I'm adding new memory to an existing motherboard, going from 40MB (16+16+4+4) to 160MB (64+64+16+16), all in SIMMS. The manual shows this as a valid SIMM sequence.

However, the BIOS is only recognizing 96MB (one the 64MB SIMMs is being ignored).
Problem still occurs with only the two 64MB SIMMs alone; only 64MB gets recognized; order does not make a difference.

Board: Gigabyte GA-586T2
Chip: AMD K6 (200MHz)
BIOS: upgraded to the latest version (v22) straight from Gigabyte
New DRAM: 64MB, EDO, 60 ns, 72-pin, 16X32

Any ideas would be appreciated.
Thanks.

[piyopiyo13]

Is it the same RAM module that's always not being detected? Or is it whatever is in that particular DIMM slot is not detected?

[Peter M]

I bet it's not ignoring a single SIMM but rather using the two 64MB ones as 32MB each. Might be a BIOS or chipset limitation. What chipset does that thing use?

regards, Peter