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ThinkPad T400

2008–2009 · laptop

Specifications

Cpu: Intel Core 2 Duo P8400 2.26 GHz to T9600 2.8 GHz
Ram: max: 8 GB DDR3-800/1066 (2×4 GB); Lenovo's official spec listed 4 GB, the GM45 chipset handles 8 GB fine · base: 1 GB DDR3-800/1066
Ports: USB 2.0 ×3 · FireWire 400 · VGA · Gigabit Ethernet · ExpressCard/34 · Docking connector
Battery: Removable 6-cell Li-Ion (~56 Wh), 9-cell extended available
Display: 14.1" 1280×800, optional 1440×900
Storage: base: 120 GB SATA HDD · options: 160 GB SATA HDD · 250 GB SATA HDD · 320 GB SATA HDD · SATA SSD (community favorite)
Weight: 2.3 kg
Os Support: latest: Windows 10 (unofficial, widely used); Linux fully supported · shipped: Windows XP Professional / Vista Business

RAM

8 GB DDR3-800/1066 (2×4 GB) · Two SO-DIMM slots under the bottom panel. Officially rated for 4 GB, but the GM45 chipset addresses 8 GB without issue.

~$25

EASY

storage

2.5" SATA II SSD · Standard 2.5" SATA bay, plus an UltraBay slot that accepts a second hard drive caddy in place of the optical drive.

~$30

EASY

other

coreboot / libreboot · Supported by libreboot, giving a fully free BIOS replacement. First flash typically needs an external programmer.

MODERATE

battery

6-cell or 9-cell Li-Ion replacement pack · Tool-free release latch on the bottom.

EASY