iMac dmesg

hi mem tramps at 0xffe00000
PAE enabled
standard timeslicing quantum is 10000 us
vm_page_bootstrap: 254581 free pages
mig_table_max_displ = 71
Enabling XMM register save/restore and SSE/SSE2 opcodes
83 prelinked modules
ACPI CA 20051117 [debug level=0 layer=0]
AppleACPICPU: ProcessorApicId=0 LocalApicId=0 Enabled
AppleACPICPU: ProcessorApicId=1 LocalApicId=1 Enabled
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California. All rights reserved.

using 2613 buffer headers and 2613 cluster IO buffer headers
Enabling XMM register save/restore and SSE/SSE2 opcodes
IOAPIC: Version 0x20 Vectors 0:23
Started CPU 01
ACPI: System State [S0 S3 S4 S5] (S3)
Security auditing service present
BSM auditing present
disabled
rooting via boot-uuid from /chosen: 30976105-460C-4B94-B147-3EC4709F4856
Waiting on IOProviderClassIOResourcesIOResourceMatchboot-uuid-media
FireWire (OHCI) Lucent ID 5811 PCI now active, GUID 001451fffeb88896; max speed s400.
Got boot device = IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/SATA@1F,2/AppleAHCI/AppleAHCIPort@2/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice/IOBlockStorageDriver/WDC WD2500JS-40NG
B2 Media/IOGUIDPartitionScheme/Merged_Untitled@2
BSD root: disk0s2, major 14, minor 2
CSRHIDTransitionDriver::probe:
CSRHIDTransitionDriver::start before command
CSRHIDTransitionDriver::stop
IOBluetoothHCIController::start Idle Timer Stopped
Jettisoning kernel linker.
Resetting IOCatalogue.
Matching service count = 0
Matching service count = 0
Matching service count = 0
Matching service count = 0
Matching service count = 0
Previous Shutdown Cause: 0
IPv6 packet filtering initialized, default to accept, logging disabled
yukonosx: Ethernet address 00:16:cb:85:c7:01
AirPortPCI_MM: Ethernet address 00:14:51:e6:7e:ae
[HCIController][setupHardware] AFH Is Supported
AppleYukon - en0 link active, 100-Mbit, full duplex, symmetric flow control enabled
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
(52: SystemStarter)tfp: failed on 0:
ATY,Wormy: vram [80000000:08000000]
ATY,Wormy: vram [80000000:08000000]
(49: coreservicesd)tfp: failed on 0:
(49: coreservicesd)tfp: failed on 0:
IOBluetoothHCIController::terminateWL .. done
USBF:   5940.663        IOUSBPipe[0x27aa740]:ClosePipe for address 2, ep 1 had a retain count > 1.  Leaking a pipe
CSRHIDTransitionDriver::probe:
CSRHIDTransitionDriver::start before command
USBF:   5942.442        IOUSBDevice[0x2bdee00]::GetFullConfigurationDescriptor - Error (e00002ed) getting first 9 bytes of config descriptor
CSRHIDTransitionDriver::stop
IOBluetoothHCIController::start Idle Timer Stopped
[HCIController][setupHardware] AFH Is Supported

MacOS X 10.4.6

Just updated to MacOS X 10.4.6 – solved AirPort speed problems.