This is what the boot looks like, maybe this will help.
System Bootstrap, Version 7.1(1)
Copyright (c) 1994-2001 by cisco Systems, Inc.
*** Mistral Interrupt on line 2 ***
IO bus interrupt due to illegal addr, no ack, etc
PC = 0xbfc1234c, Cause = 0x1000, Status Reg = 0x30419003
ROM Monitor Can Not Recover From Exception
A Board Reset Is Issuedþ
System Bootstrap, Version 7.1(1)
Copyright (c) 1994-2001 by cisco Systems, Inc.
c6k_sup2 processor with 524288 Kbytes of main memory
Autoboot executing command: "boot bootflash:"
boot: cannot determine first file name on device "bootflash:"
System Bootstrap, Version 7.1(1)
Copyright (c) 1994-2001 by cisco Systems, Inc.
c6k_sup2 processor with 524288 Kbytes of main memory
rommon 1 >