Them 9 pins are needed to allow connection via a second card which is a Matrox Parhelia PCI-X 256MB,.via this connector the two cards become one unit so you can use 4 to 6 displays over a pair of Parhelia 256MB's
here is where I found out:
Joined graphics card mode enables an additional Matrox DualHead** or TripleHead† graphics solution to work in tandem in one system to drive up to four displays
http://www.matrox.com/graphics/en/pr…lia/parhelia256
And I think this has to do with it:
Optional upgrades
* Matrox ASM (Advanced Synchronization Module) for synchronization with video input or other Matrox graphics cards
These are the cards you can use the ASM method to connect with:
Matrox QID Pro [A Parhelia PCI-X 256MB variant]
http://www.matrox.com/graphics/en/pr…_series/qidpro/
[Blockierte Grafik: http://www.matrox.com/graphics/media…ries/qidpro.jpg]
Matrox Parhelia DL256
http://www.matrox.com/graphics/en/pr…rheliadl256pci/
[Blockierte Grafik: http://www.matrox.com/graphics/media…rheliadl256.jpg]
Matrox Parhelia HR256
http://www.matrox.com/graphics/en/pr…/parheliahr256/
[Blockierte Grafik: http://www.matrox.com/graphics/media…rheliahr256.jpg]
Matrox Parhelia Precision SDT
http://www.matrox.com/graphics/en/pr…iaprecisionsdt/
[Blockierte Grafik: http://www.matrox.com/graphics/media…arhelia/sdt.jpg]
And last but not least, these two
Matrox Parhelia PCI 256MB
http://www.matrox.com/graphics/en/pr…/?productTabs=1
[Blockierte Grafik: http://www.matrox.com/graphics/media…heliapci256.jpg]
Matrox Parhelia Precision SGT
http://www.matrox.com/graphics/en/pr…iaprecisionsgt/
[Blockierte Grafik: http://www.matrox.com/graphics/media…arhelia/sgt.jpg]
These cards do have this as hintful info as well
As extra info thiis does explain the multi card support:
Supported multi-card configurations
* Parhelia Precision SDT
* Parhelia Precision SDT + Parhelia PCI 256MB
* Parhelia Precision SDT + Parhelia DL256 PCI
* Parhelia Precision SDT + Parhelia 256MB (AGP)
Optional upgrades
* Matrox ASM (Advanced Synchronization Module) for synchronization with video input or other Matrox graphics cards
@ rockys82
Welcome to the club man! grats with your Parhelia AGP 256MB, run the Reefdemo I sent you with them drivers, it really brings the parhelia to life in 1Billion Color mode + FAA x16 & AF enabled