Mediator PCI 3/4000T
 connects to: Zorro III
Mediator PCI 3/4000T
Mediator PCI 3/4000T installed in A4000T
Image of Zorro III riser
- 150 x 150, 9K
Zorro II: None
Zorro III: None * See text
ISA: None
PCI: 6 (Active, 2.1 compliant, 33Mhz), 1 slot reserved for bridgeboard
Video Slots: None * See text
Other: None

A PCI busboard which is designed for use with the A4000T (Genuine) and A3000T (Genuine), however it is compatible with most towered A1200s already fitted with another Zorro III busboard, or A4000s housed in the E/BOX 4000. This busboard is designed to attach to your motherboard or busboard and make use of it's existing Zorro III slots. It allows you to use up to four of your Zorro III slots, (only 1 full length card can be used, the rest must be half length) and one video slot. A bridgeboard called the Mediator PCI 4000 is connected to both a Zorro III slot, and a PCI slot on the card. It is possible to use more full length Zorro III cards if required, however you must fit a mini riser card in each slot where this is required. These are not supplied with the busboard but must be purchased separately.

PCI Features

  • 33MHz PCI clock (66MHz with the as yet unreleased SharkPPC)
  • PCI transfers up to 132MB/sec (33Mhz), 264MB/sec (66Mhz)
  • 4GB PCI memory space, accessed through a 512MB window in Zorro III address space
  • Busmastering/DMA in all PCI slots
  • Can use the SDRAM/SGRAM of a PCI graphics card as a DMA buffer
  • Address and data parity control support
  • Interrupt controller (4 lines to each PCI card)

At the time of writing, the following cards/chipsets are supported:

Graphics Cards Voodoo3 2000
Voodoo3 2000
Voodoo 3 3000
Voodoo 4 4500
Voodoo 5 5500
ViRGE 86C325 chipset
ViRGE/DX 86C375 chipset
Network Cards Compex RL2000
Holtek HT80232
Holtek HT80229
NetVin NV5000SC
Realtek RTL 8029 chipset
SureCom NE34
VIA 86C926 chipset
Winbond 89C940F chipset
Realtek RTL8139B chipset
Realtek RTL 8139C chipset
Realtek RTL 8139D chipset
TV / Capture Cards Brooktree BT 848A chipset
Brooktree BT 849A chipset
Brooktree BT 878A chipset
Fusion 878A chipset
Fusion 879A chipset
Sound Cards CT 5880 chipset
ES 1370 chipset
ES 1371 chipset
ES 1373 chipset
EV 1938 chipset
Mixers EMU10K1 chipset
EMU10K2 chipset
ForteMedia 801 chipset
USB Cards Spider
Spider II
MPEG-2 / DVD Decoders EM 8300 chipset
EM 8400 chipset

For a more specific list, please see Elbox

Copyright Notice
Parts of this page are © Elbox and are used with permission for inclusion in "The Big Book of Amiga Hardware"

Page contributors: Orjan Lindgren
Updated: 1/22/2005 . Added: 12/22/2004