I just upgrade my old pc and i put 3 modules of 256mb 133mhz sdram in a motherboard ecs p6bat-ap bios version 5.6,but the bios recognize only the half memory.Is there any patched bios that it can make the bios recognize the whole memory?Before i had 3 modules of 128mb 2 with 4 chips and 1 with 8 chips and recognized the whole memory.Please advice.
Kingston,that i use know is 8 chips memory.Ihave already tried with one chip .Same.Bios recognized as 128 and no 256.I think that the motherboard needs bios upgrade but i do not know if there is any newer version for this motherboard.
there are two chipsets that are very easy to mix up: VIA Apollo Pro (VT82C691 sometimes called VT82C693) and VIA Apollo Pro (VT82C693A). both have the same PCI IDs (1106:0691) and they are pretty much the same.
from the datasheets
Mixed 1M / 2M / 4M / 8M / 16MxN DRAMs
Mixed 1M / 2M / 4M / 8M / 16M / 32MxN DRAMs
seems one of your boards is equipped with the VT82C691 and the other with a VT82C693A. nothing wrong with the modules. this is a chipset limitation. there's no software fix for this.
Thanks for all your answers.Could you you please provide me with the name and model of a motherboard that can fit these specific modules (prefarable slot1) and the type of processor that i have to buy with?I will apreciate any answer.Thank you.