Welcome to the forum!
Could you please post the 7-character model number of your R31?
Theoretically, 1GB should be the max for P3M units, but some Celeron machines have one slot already populated, that's why I'm asking for the model number.
Good luck and let us know.
Cheers,
George
A31p (2653-???) P4M 2.0/2GB/250GB, 15" UXGA IPS, XPP/Mint ...the best ThinkPad ever...
T43pSFL (2668-BY8) PM 2.2/2GB/32GB SLC SSD + 500GB in UltraBay, SATA-modded, 15" LED-AFFS UXGA mod, Win 7...my best friend...
R60F (0657-???) C2D 2.0/3GB/128GB SSD/ 15" SXGA+ IPS, Win 7...a FrankenPad toy for my twin boys...
T410 (2537-RB7) Core i5 2.4/8GB/128GB SSD/14" WXGA+ TFT, Win 7/Mint...just grabbed by my only daughter...
X60T (6363-C7U) C2D 1.5/3GB/120 GB SSD/12" SXGA+ AFFS, Win 7....my travel companion...
...plus an iPad 2...and a ToughBook...or two...
I build FrankenPads....scary FrankenPads...
S = SATA-mod (on T43/p units only)
F = FrankenPad
L = LED-mod utilizing an UXGA AFFS LED screen
Please DO NOT PM me with requests for individual support, but post your questions and concerns in the appropriate section of the forum where other users can benefit from them as well. Thank you.
Most of my ThinkPad collection is now for sale: R60, R61, T42, T43p, T60, T61, T61p, X61, Z61m Titanium...PM if interested.
