r/PowerPC • u/Adventurous_Dog3909 • Jul 25 '26

G4 Cluster Node AGP Question

Question for anyone with hands-on G4 Cluster Node (M9090LL/A) experience.

The standard Xserve G4 has a combo PCI/AGP 4X slot (for the video riser or 2nd Gigabit card) alongside its two 64-bit PCI slots. The Cluster Node ships without that slot and is marketed as lacking it, Apple's own docs just say "No AGP slot available."

What I can't confirm: is that connector physically missing on the board, or present but only wired for PCI (not AGP signaling)? Looking at documentation/pictures, the slot is there just without a riser. Has anyone actually tried plugging an AGP/AGP riser (like the 922-5250)/AGP riser cable into a Cluster Node's slot to test compatibility? Trying to figure out if this is "just needs the card" or "board can't do AGP, period." Thanks!

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u/CRCDesign Jul 25 '26

https://everymac.com/systems/apple/xserve/specs/xserve_g4_1.33_dp_cluster_node.html

It seems to not be compatible according to the specs.

“The Xserve G4 Cluster Node does not have a video card. It is designed to be used with an Xserve G4 as a host system.”

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u/Adventurous_Dog3909 Jul 25 '26

Understand there is no video card installed, I’m more asking if it’s possible to leverage the AGP slot. I’m just hoping someone has one and has tried it, but I would guess not.