I'll definitely do this when I'm home. The thing that's driving me up the walls is that EveryMac says that the PCI G5s have "
Three open full-length 33 MHz, 64-bit PCI slots." and the
Wiki entry for PCI-X says "The slot is physically a 3.3 V PCI slot, with exactly the same size, location and pin assignments. The electrical specifications are compatible, but stricter. However, while most conventional PCI slots are the 85 mm long 32-bit version, most PCI-X devices use the 130 mm long 64-bit slot, to the point that 64-bit PCI connectors and PCI-X support are seen as synonymous."
Which is to say, Apple may have shipped PCI and PCI-X G5 Power Macs that looked physically identical. Especially since the 2.0 ghz Dual Processor model got both a PCI and PCI-X release. I'm getting a headache.