IBM ThinkPad R51 1830‑DG4 Specifications
This ThinkPad model is based on the ThinkPad R51 1830‑BRG.
CPU and Memory
| Processor Manufacturer | Intel | 
| Processor Class | Pentium M (Banias) | 
| Processor Speed | 1.7 GHz | 
| Cache Size | 1 MB | 
| Installed Memory | 512 MB (1 card, 1 slot remaining free) | 
| Maximum Memory | 2 GB (2 cards à 1 GB) | 
| Memory Technology | PC2700 DDR SDRAM (333 MHz) | 
Storage
| Hard Disk Model | Hitachi IC25N080ATMR04 | 
| Hard Disk Capacity | 80 GB | 
| Hard Disk Speed | 4200 rpm | 
| Included Drives | Matsushita DVD‑RAM UJ‑811 (DVD Multi-Burner) | 
| Reads | CD-ROM, CD-R(W), DVD-ROM, DVD±R(W), DVD-RAM | 
| Writes | CD-R(W), DVD-R(W), DVD-RAM | 
Display and Graphics
| Display Size | 15 in | 
| Display Type | FlexView IPS LCD (Samsung LTN150P1‑L02) | 
| Display Resolution | 1400×1050 pixels (SXGA+) | 
| Graphics Processor | ATI Mobility Radeon 9000 | 
| Graphics Memory | 32 MB DDR SDRAM | 
| Max. External Resolution | 1600×1200 pixels | 
Battery
| Battery Life | up to 4 hours | 
| Battery Type | 6 cell Li‑Ion battery | 
| Battery Capacity | 4.4 Ah | 
| Battery Manufacturer | Sanyo or Sony | 
Communications and Networking
Software
| Shipped Operating System | Microsoft Windows XP Professional | 
| Preinstalled | Yes | 
Connectors
| Audio Out | 2 x build-in stereo speakers: 2×1 W 1 x audio line-out/headphones: mini-phone stereo 3.5 mm
 | 
| Audio In | 1 x build-in microphone 1 x external microphone: mini-phone mono 3.5 mm
 | 
| FireWire | 1 x IEEE 1394a (FireWire 400): 4 pin FireWire plug | 
| Modem | 1 x phone line: RJ-11 | 
| Network | 1 x Ethernet 10Base-T/100Base-TX/1000Base-T: RJ-45 | 
| Parallel Port | 1 x IEEE 1284 (EPP/ECP): 25 pin D-Sub (DB-25) | 
| PC Card | 1 x CardBus slot Type III | 
| USB | 2 x Hi-Speed USB (USB 2.0): 4 pin USB Type A | 
| Video | 1 x VGA: 15 pin HD D-Sub (HD-15) 1 x S-Video: 4 pin mini Din
 | 
| Docking Port | Yes | 
General Product Info
| Input Devices | Keyboard, UltraNav | 
| Sound Card | Intel ICH4-M AC'97 (rev. 01) | 
| Security | Security chip | 
| Weight (approximate) | 3.0 kg (6.6 lb) | 
| Dimensions (W×D×H) | 332 mm × 269 mm × 37–40 mm (13.1 in × 10.6 in × 1.46–1.58 in) | 
| Manufacturer Part No. | 13N5378 JS | 
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