|"The other processor I had in mind was a Mobile Athlon XP-M - Low Power 25W µPGA P/N: AXMS2100GXS4B"|
You need to re-read jackbomb's response & check the link he supplied:
"The Mobile Athlon XP processors up to the 1600+ also work well as upgrade processors provided the following critieria are met:
-Must be a 25W mobile processors. The 35W and higher processors generate too much heat to be reliable.
-Must be a 100/200Mhz FSB (Front Side Bus) processor."
The processor you mentioned is a 2100+. It may work, it may not.
"The 160gb hard drive was listed by Drive Solutions as a direct replacement for the PCG-FX215"
Unless there was a BIOS update that enabled 48-bit addressing, the 160GB HDD will not work properly. 28-bit adressing only supports up to 137GB...the closet drive to that size is 120GB. If you use the 160GB HDD, your data will become corrupted.
"Is there anything I can do to change the video memory settings or am I just S.O.L.?"
You're SOL. The ATI RAGE Mobility is extremely outdated & there's nothing you can do to make it any better.
I think your wasting you money on this project. Return the lasptop to it's stock condition, throw Win98SE on it & sell it for $75.