Lenovo ThinkPad R50e Series Hardware Maintenance Manual page 48

Product overview
Feature
Optional memory
Bus architecture
Graphic memory
chip
CMOS RAM
Hard disk drive
Integrated wireless
LAN feature (for
some models)
Mini PCI adapter
Fixed optical device
Display
I/O port
Internal modem
(continued)
44
R50e (MT1834, 1842)
Description
v 128 MB DDR SDRAM SO-DIMM
(PC2700) card
v 256 MB DDR SDRAM SO-DIMM
(PC2700) card
v 512 MB DDR SDRAM SO-DIMM
(PC2700)
v 1 GB DDR SDRAM SO-DIMM (PC2700)
(maximum of 2048 MB)
v 400 MHz PSB (Processor System Bus)
v 266 MHz DDR (Double Data Rate)
SDRAM (Synchronous DRAM) (PC2700)
v HUB link
v PCI bus
v LPC bus
v Intel 855GM
(total video memory: UMA, 64 MB)
v 242 bytes
v 20.0 GB, 4200 rpm, 12.7 mm high, IDE
interface
v 30.0 GB, 4200 rpm, 12.7 mm high, IDE
interface
v 40.0 GB, 4200 rpm, 12.7 mm high, IDE
interface
v 60.0 GB, 4200 rpm, 12.7 mm high, IDE
interface
v 802.11b/g
v Intel PRO Wireless 2200BG Mini-PCI
Adapter
v CD-ROM drive, 12.7 mm high
v DVD drive, 12.7 mm high
v DVD/CD-RW combo drive, 12.7 mm
high
v 14.1-inch, 16M colors, XGA (1024 × 768
resolution) TFT color LCD
v 15.0-inch, 16M colors, XGA (1024 × 768
resolution) TFT color LCD
v External monitor connector
v Stereo headphone jack
v Monaural microphone jack
v Parallel connector
v RJ11 connector
v RJ45 connector
v Universal serial bus (USB) 2.0 connector
× 2 (compatible with USB 1.1 and 2.0)
v 56.6 Kbps