The TM 4000M is based on an Intel 486 DX4 processor running at 75 or 100 Mhz depending on the model. It comes with 4MB of on-board memory, expandable to 20MB. It features a 8"1/4 (75 Mhz model) or 9"1/2 (100 Mhz model) active matrix LCD screen driven by a Cirrus Logic 6440 chipset and a trackpoint mouse which emulates a PS/2 mouse. It is worth noting that the two mouse buttons are conveniently placed side by side, making it easy to press both buttons with one finger when 3-button mouse emulation is needed (for XFree86). It also includes a built-in Adaptec AHA1510 SCSI controller, and a built-in sound card based on the MediaVision Jazz16 chipset that features a single speaker and a built-in microphone in addition to line in, line out, MIDI/joystick, and microphone connectors.
The 2 x type II or 1 x type III PCMCIA bus is controlled by a CirrusLogic PD6720 chipset.
Others goodies include a joystick/MIDI port, a mini-DIN plug that can be used to connect an external PS/2 keyboard or mouse (but not both at the same time).
Despite marketing claims, it seems that the TM4000M is not compliant with the industry-standard Advanced Power Management specifications as defined by Intel and Microsoft. APM issues are covered in a separate section.
My machine came with the following factory settings:
| Adapter | I/O Port | IRQ | DMA |
|---|---|---|---|
| Sound (8 bit) | 0x220 | 5 | 1 |
| Sound (16 bits) | - | - | 7 |
| MPU-401 MIDI | 0x330 | 9 | - |
| SCSI Adapter | 0x340 | 11 | - |
HTML document last updated 18 February 1999