I couldn't find a 742M at http://www.pcchips.com.tw/PCCWebSite/pcc_index.aspx?MenuID=0&LanID=2
Could you find that board?
Or is that a HP 742M from http://h10025.www1.hp.com/ewfrf/wc/product?product=83540&lc=en&cc=us&dlc=en&lang=en&cc=us
This computer works fine running WIN98SE.
Memory slots 1 and 2 each have 64MB.
Memory slot 3 was empty.
Dial-up modem works fine.
Ethernet connection to XP Home for file transfer works fine.
Video works fine.
Sound works fine.
CD-ROM and CD-RW work fine.
I had a 64MB memory card from an old Compaq Presario I put in slot 3.
It was not recognized in the BIOS or WIN98SE, only slots 1 and 2.
I moved the compatible memory to slot 1 and moved slot 1 to slot 3.
Only the DIMM in 1 and 2 were recognized.
MSCONFIG in ADVANCED was always unchecked.(orig shaded 120 MB)
The motherboard is PCCHIPS 742M.(American Mega Trends Bios)
I think this is really a Compaq Presario in a larger unmarked chasis.
The motherboard pictures look like a variation of EXCEL 2000.
I'm stumped searching over the internet for clues.
I don't think there's if there is anything in the BIOS that s/b changed, but I don't know.T This confiq with a hint of slot 1 combo info is something I don't understand or not relevant.