For future readers... The following is quoted from Xbit Labs News Archives, month of May 2001...
"The todayís market offers 256MB PC133 SDRAM modules built from 256Mbit chips, which are incompatible with the boards on some older chipsets. These modules are built with 8 chips (in case of no ECC support) and 9 chips (in case ECC is supported).
To the chipsets, which are unable to work with these 256MB memory modules belong:
VIA Apollo Pro133 and older VIA chipsets;
Intel BX, LX, EX and i810.
These modules are supported without any trouble by:
VIA Apollo Pro133A and newer solutions;
All AMD chipsets from AMD, VIA, SiS and ALi. However, we should point out here that ASUS K7V (VIA KX133 based) is said to be unable to work with these modules;
Intel 810E and Intel 810E2 and the entire Intel 815 family.
Thatís why be careful when buying more memory for your PC. The best thing you can do, is to read carefully your mainboard userís manual before buying a new module. Or you should stick to the 16-chip modules (128Mbit chips), which work everywhere for sure."