[PATCH] Nvidia nForce MCP61, livecd fails to boot

svn 71965,
motherboard model: GIGABYTE M61PME-S2P

AtapiSendCommand: CMD_ACTION_EXEC
AtapiSendCommand: Cdb f77d5230 Command 0x12 to TargetId 0 lun 0
AtapiSendCommand: Entered with status 0x50
AtapiSendCommand: Entry Status (0x50)
AtapiSendCommand: F:0x0, CntHL:0x0:0x24.
AtapiSendCommand: Poll for int. to send packet. Status (0x50)
AtapiSendCommand: status (0x58)
AtapiSendCommand: no CoD raised, abort cmd
AtapiSendCommand: iReason 0 (5000)
AtapiSendCommand: status (0x58)
AtapiSendCommand: DRQ+CoD never asserted
AtapiSendCommand: Err on cmd: (0x0)