Hardware Maintenance Manual
Page 57
... M processor 550 (2.0 GHz), 1-MB L2 cache v Intel Celeron M processor 560 (2.13 GHz), 1-MB L2 cache v Intel Celeron M processor 570 (2.26 GHz), 1-MB L2 cache v Intel Celeron Dual Core processor T1400 (1.73 GHz), 512-KB L2 cache v Intel Celeron Dual Core processor T1500 (1.86 GHz), 512-KB L2 cache...SO-DIMM (PC2-5300) card × 1 (maximum of 4.0 GB) Note: Due to the limitation of the current 32-bit PC architecture, actual usable memory size is limited to 3 GB even though the physical installable memory size is 4 GB in ThinkPad R61, R61e, and R61i (15.4-inch widescreen) computers. Table 7.
... M processor 550 (2.0 GHz), 1-MB L2 cache v Intel Celeron M processor 560 (2.13 GHz), 1-MB L2 cache v Intel Celeron M processor 570 (2.26 GHz), 1-MB L2 cache v Intel Celeron Dual Core processor T1400 (1.73 GHz), 512-KB L2 cache v Intel Celeron Dual Core processor T1500 (1.86 GHz), 512-KB L2 cache...SO-DIMM (PC2-5300) card × 1 (maximum of 4.0 GB) Note: Due to the limitation of the current 32-bit PC architecture, actual usable memory size is limited to 3 GB even though the physical installable memory size is 4 GB in ThinkPad R61, R61e, and R61i (15.4-inch widescreen) computers. Table 7.