I have a problem.
I replaced the Ram chips on the Mitac 7521+.
Originally it had only 128 MB of Ram soldered on the board. I replaced the original Memory modules (Hynix HY57V281620A) with larger ones (Infineon HYB 39S256160CT-7.5) from a new SDRam SOdimm Module that had the same pinout and voltage.
Now while the board runs perfectly (I already have tested the ram modules on board with the Memtest86+ programm and there were no errors) i have a small problem.
The board only detects half of the ram which means i am still stuck with 128 MB onboard ram.
Is there anyone out there who can give me advice on how to modify the bios (its a phoenix bios) to check for 256 instead of 128 MB onboard ram, or can tell me if there is a chip (the small inline configuration chip on the sodimm modules) i need to exchange to get the full ram working?
thank you very much for your help