Andrew, Here's the result. I've only got one 150 card installed at the moment and it looks like the OS detects it. Why then would it not pop up on screen?
00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [e0] HyperTransport: MSI Mapping
00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0
00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: 66MHz, fast devsel, IRQ 3
I/O ports at fc00 [size=32]
I/O ports at 4c00 [size=64]
I/O ports at 4c40 [size=64]
Capabilities: [44] Power Management version 2
00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) (prog-if 10 [OHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
Memory at feb00000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port
Capabilities: [80] Power Management version 2
00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7585
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 17
I/O ports at f000 [size=256]
I/O ports at ec00 [size=256]
Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2) (prog-if 8a [Master SecP PriP])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0
[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled] [size=8]
[virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled] [size=1]
[virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8]
[virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1]
I/O ports at e000 [size=16]
Capabilities: [44] Power Management version 2
00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) (prog-if 85 [Master SecO PriO])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 17
I/O ports at 09f0 [size=8]
I/O ports at 0bf0 [size=4]
I/O ports at 0970 [size=8]
I/O ports at 0b70 [size=4]
I/O ports at cc00 [size=16]
Memory at fe02b000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) (prog-if 85 [Master SecO PriO])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 18
I/O ports at 09e0 [size=8]
I/O ports at 0be0 [size=4]
I/O ports at 0960 [size=8]
I/O ports at 0b60 [size=4]
I/O ports at b800 [size=16]
Memory at fe02a000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000a000-0000afff
Memory behind bridge: fc800000-fd7fffff
Prefetchable memory behind bridge: f4000000-f7ffffff
00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7125
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 19
Memory at fe029000 (32-bit, non-prefetchable) [size=4K]
I/O ports at b400 [size=8]
Capabilities: [44] Power Management version 2
00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00009000-00009fff
Memory behind bridge: fdf00000-fdffffff
Prefetchable memory behind bridge: 00000000fde00000-00000000fdefffff
Capabilities: [40] Power Management version 2
Capabilities: [48] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
Capabilities: [58] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 00008000-00008fff
Memory behind bridge: fdd00000-fddfffff
Prefetchable memory behind bridge: 00000000fdc00000-00000000fdcfffff
Capabilities: [40] Power Management version 2
Capabilities: [48] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
Capabilities: [58] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 00007000-00007fff
Memory behind bridge: fdb00000-fdbfffff
Prefetchable memory behind bridge: 00000000fda00000-00000000fdafffff
Capabilities: [40] Power Management version 2
Capabilities: [48] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
Capabilities: [58] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 00006000-00006fff
Memory behind bridge: f9000000-fbffffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Capabilities: [40] Power Management version 2
Capabilities: [48] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
Capabilities: [58] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
Flags: fast devsel
Capabilities: [80] HyperTransport: Host or Secondary Interface
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
Flags: fast devsel
01:06.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 46) (prog-if 10 [OHCI])
Subsystem: VIA Technologies, Inc. IEEE 1394 Host Controller
Flags: bus master, stepping, medium devsel, latency 64, IRQ 20
Memory at fd7ff000 (32-bit, non-prefetchable) [size=2K]
I/O ports at ac00 [size=128]
Capabilities: [50] Power Management version 2
01:07.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc. WinTV PVR 150
Flags: bus master, medium devsel, latency 128, IRQ 23
Memory at f4000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
01:08.0 RAID bus controller: 3ware Inc 7xxx/8xxx-series PATA/SATA-RAID (rev 01)
Subsystem: 3ware Inc 7xxx/8xxx-series PATA/SATA-RAID
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22
I/O ports at a800 [size=16]
Memory at fd7fe000 (32-bit, non-prefetchable) [size=16]
Memory at fc800000 (32-bit, non-prefetchable) [size=8M]
[virtual] Expansion ROM at fd000000 [disabled] [size=64K]
Capabilities: [40] Power Management version 1
01:09.0 Ethernet controller: Marvell Technology Group Ltd. Belkin F5D5005 Gigabit Desktop Network PCI Card (rev 12)
Subsystem: Belkin Unknown device 5005
Flags: bus master, 66MHz, medium devsel, latency 23, IRQ 21
Memory at fd7f8000 (32-bit, non-prefetchable) [size=16K]
I/O ports at a400 [size=256]
Capabilities: [48] Power Management version 2
Capabilities: [50] Vital Product Data
05:00.0 VGA compatible controller: nVidia Corporation NV44 [GeForce 6200 LE] (rev a1) (prog-if 00 [VGA])
Subsystem: Unknown device 19f1:2104
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f9000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at fa000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at fb000000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [78] Express Endpoint IRQ 0