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A3000T/030
A3000T/040
Shortly after the release of the desktop A3000 its tower version came out. The first models shipped with 030 processors on their motherboard, later the A3000T/040 was introduced featuring an A3640 processor card.
68030 @ 25 MHz
68040 @ 25-40 MHz
68060 @ 50 MHz
PowerPC 604e @ 150-233 MHz
The A3000T/030 uses a 68030 and 68882 @ 25 MHz, while the A3000T/040 uses a 68040 @ 25 MHz mounted on the A3640 card. The 040 version has the 68030 and 68882 chips removed from its motherboard.
up to 2 MB Chip RAM
up to 16 MB Fast RAM on motherboard
up to 128 MB Fast RAM on processor cards
up to 1.25 GB Fast RAM on Zorro III expansion cards
All A3000Ts have 1 MB Chip RAM
soldered to their motherboard but unlike the desktop A3000 it uses ZIPs instead
of DIPs. Eight ZIP sockets accept another 1 MB using 256k×4 ZIPs.
Fast RAM can be installed via 32 ZIP sockets which accept 16 MB Fast RAM. They
accept either 1M×4 or 256k×4 80 ns ZIPs in groups of eight (one bank) but all
the banks have to have the same sized chips. The RAM chips can be either static
column or page mode ones. Static column ones support burst memory access and so
they perform 10% faster. The A3000Ts shipped with 4 MB Fast RAM installed.
Fat Agnus - ECS display
controller
Amber - display enhancer
Super Denise - ECS graphics coprocessor
Paula - audio and I/O controller
Fat Gary - system address decoder
Fat Buster - DMA arbitrary controller
Ramsey - RAM controller
Super DMAC - SCSI DMA controller
Kickstart ROMs
The A3000T's ECS chip set and display enhancer offers the following screen modes:
Low | High | Super | |||
---|---|---|---|---|---|
PAL, non-interlaced PAL, scan doubled PAL, interlaced PAL, deinterlaced NTSC, non-interlaced NTSC, scan doubled NTSC, interlaced NTSC, deinterlaced |
320×256 320×256 320×512 320×512 320×200 320×200 320×400 320×400 |
640×256 640×256 640×512 640×512 640×200 640×200 640×400 640×400 |
1280×256 - 1280×512 - 1280×200 - 1280×400 - |
50 Hz, 15.75 kHz 50 Hz, 31.5 kHz 50 Hz, 15.75 kHz 50 Hz, 31.5 kHz 60 Hz, 15.75 kHz 60 Hz, 31.5 kHz 60 Hz, 15.75 kHz 60 Hz, 31.5 kHz |
|
Productivity Super72 |
640×480
- 640×960 400×300 - 800×600 |
50 Hz, 31.5 kHz 72 Hz, 24 kHz |
1× processor card slot
5× Zorro III slots
1× video slot
4× inactive ISA slots
The Zorro, ISA and video slots
are all placed on the motherboard. All the ISA and video slots are in line with
a Zorro III slot.
The video slot is similar to the A2000's but has a slightly different bracket.
The four ISA slots have their power and ground pins activated only. In order to
access the slots by the A3000T a BridgeBoard has to be installed. With an
installed BridgeBoard three ISA AT compatible cards can be used in the remaining
slots. Inactive slots can be used for non intelligent cards like TBCs or fan
cards.
The A3000T has the same 200 pin processor card slot as the one later utilized in
the A4000. Processor cards designed for the A4000 can be used almost without
restrictions.
3× 3.5" front bays
1× 5.25" horizontal front bay
2× 5.25" vertical front bays
2× 5.25" rear bays
One of the 3.5" front bays
is occupied with an A3010 880 kB or an A3015 1.76 MB floppy disk drive.
The A3000T shipped with a SCSI hard disk drive installed into one of the rear
bays.
1× serial DB25 male, RS232
1× parallel DB25 female, Centronics
1× video DB23 male, analog RGB
1× VGA DB15 male, analog RGB
2× mouse/game DB9 male
2× stereo audio RCA jack
1× keyboard 5 pin DIN
1× external floppy DB23 female
1× internal floppy 34 pin header
1× external SCSI DB25
1× internal SCSI 50 pin header
The built in SCSI host adapter -
based around the Western Digital 33C93 SCSI controller - supports up to seven
devices connected simultaneously. The controller's configuration is stored in a
NVRAM powered by the same battery which the clock is.
The floppy drive controller supports up to four devices - two attached to the
internal floppy header and two connected to the external floppy port. Both
double and high density disk drives are supported.
Power supply: | 280 W power output monitor power connector 6× standard 4 pin power connectors 2× mini 4 pin floppy drive power connectors |