Lenovo ThinkPad T400
laptop/lenovo/t400 (platform)
| Property | Description |
|---|---|
| Manufacturer | Lenovo |
| Model | ThinkPad T400 |
| Year | 2008 |
| Max CPU | Intel Core 2 Duo T9900 With some modification, a Core 2 Extreme QX9300 (quad-core) can be installed in place of
the stock (dual-core) Core 2 Duo. |
| Max RAM | 8GB 2x4GB DDR3-1066 SODIMM |
| Image | credit to chw.net (http://img63.xooimage.com/files/5/8/9/t400_01-24d34c5.jpg) |
| Software: User-Facing Environment | Free |
| Software: Operating System | Free |
| Software: Bootloader/Recovery | Free |
| Firmware: Persistent Privileged Code (e.g. x86 SMM) | Free (Coreboot) |
| Firmware: Late Boot/Payload | Free (SeaBIOS, etc.) |
| Firmware: Platform Initialization | Free (Coreboot) |
| Firmware: Memory Initialization | Free (Coreboot) |
| Firmware: Early Boot (incl. RoT) | Free (Coreboot) |
| Firmware: Boot ROM | None x86 CPUs don't have true "software" boot ROMs in mask ROM (such as those in many ARM SoCs).
Most x86 platforms map the firmware in SPI flash directly into address space at the reset vector, where it can be executed in-place. Prior to this, some early
initialization may be performed by the ROM microcode, or by coprocessors (such as the ME/PSP) if present. |
| Firmware Signing | None |
| CPU Microcode | Proprietary All current x86 CPUs use proprietary microcode, stored in mask ROM in the CPU itself.
Additional updates to this microcode can be temporarily loaded by firmware and/or the OS. |
| Management Coprocessor: Firmware | Proprietary, fully removable (ME Gen1) On ME versions 5 and below (prior to Nehalem), the ME can be entirely disabled with flash descriptor configuration, and its firmware
can safely be entirely removed from the flash image. |
| Communications Coprocessor: Internal Firmware | WLAN proprietary, but card is removable |
| Communications Coprocessor: Host-Loaded Firmware | Unnecessary with some cards (e.g. ath9k) |
| Security Coprocessor: Firmware | Proprietary, but use of it is optional (TPM) |
| Embedded Controller: Firmware | Proprietary |
| Hardware: Board Electrical Schematic | Proprietary, but often available online |
| Hardware: Board PCB Design | Proprietary, but boardview often available |
| Hardware: CPU Instruction Set | Proprietary (x86_64) |
| Hardware: CPU/SoC Implementation | Proprietary (Intel Penryn) |
| Hardware: CPU/SoC Synthesis Toolchain | Proprietary |
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