I have built a new box and it consistantly gets a BSOD. The event seems to be at random intervals.
The parts used were:
Foxconn 648/661 socket 478
Cel 2.4, 512 RAM, Samsung 52X CDROM
Seagate 40, XP Pro Sp1

I have done some debugging but do not know how to decifer the latest results see below:

> *************************************************************************** ****
> *
> *
> * Bugcheck Analysis
> *
> *
> *
> *************************************************************************** ****
>
> IRQL_NOT_LESS_OR_EQUAL (a)
> An attempt was made to access a pageable (or completely invalid) address
> at an
> interrupt request level (IRQL) that is too high. This is usually
> caused by drivers using improper addresses.
> If a kernel debugger is available get the stack backtrace.
> Arguments:
> Arg1: 808b537c, memory referenced
> Arg2: 00000002, IRQL
> Arg3: 00000000, value 0 = read operation, 1 = write operation
> Arg4: 804e60a4, address which referenced memory
>
> Debugging Details:
> ------------------
>
>
> READ_ADDRESS: 808b537c
>
> CURRENT_IRQL: 2
>
> FAULTING_IP:
> nt!KiDeliverApc+16a
> 804e60a4 8b4f1c mov ecx,[edi+0x1c]
>
> DEFAULT_BUCKET_ID: INTEL_CPU_MICROCODE_ZERO
>
> BUGCHECK_STR: 0xA
>
> LAST_CONTROL_TRANSFER: from 804de855 to 804e60a4
>
> TRAP_FRAME: f3519ca4 -- (.trap fffffffff3519ca4)
> ErrCode = 00000000
> eax=808b536c ebx=848b5364 ecx=848b536c edx=f3519d24 esi=848b5330
> edi=808b5360
> eip=804e60a4 esp=f3519d18 ebp=f3519d4c iopl=0 nv up ei pl nz na pe
> nc
> cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000
> efl=00010202
> nt!KiDeliverApc+0x16a:
> 804e60a4 8b4f1c mov ecx,[edi+0x1c]
> ds:0023:808b537c=????????
> Resetting default scope
>
> STACK_TEXT:
> f3519d4c 804de855 00000001 00000000 f3519d64 nt!KiDeliverApc+0x16a
> f3519d4c 7c90eb94 00000001 00000000 f3519d64 nt!KiServiceExit+0x58
> WARNING: Stack unwind information not available. Following frames may be
> wrong.
> 01e7fd54 71a6104f 00000328 0000032c 00000002
> Unknown_Module_7c900000+0xeb94
> 01e7fdd4 71abf6cf 0000032c 01e7fe44 00000001 mswsock!WSPRecvFrom+0x1f0
> 01e7fe18 71ad303e 0000032c 01e7fe44 00000001 WS2_32!WSARecvFrom+0x7d
> 01e7fe4c 00cdaf1f 0000032c 00000000 00000100 WSOCK32!recvfrom+0x39
> 01e7fe74 00cdac60 01e7fe90 0000274d 0000274d SSNETLIB+0xaf1f
> 01e7ffb4 7c80b50b 00ce1c60 00000000 00000000 SSNETLIB+0xac60
> 01e7ffec 00000000 00cdaa70 00ce1c60 00000000 kernel32!BaseThreadStart+0x37
>
>
> FOLLOWUP_IP:
> nt!KiDeliverApc+16a
> 804e60a4 8b4f1c mov ecx,[edi+0x1c]
>
> SYMBOL_STACK_INDEX: 0
>
> FOLLOWUP_NAME: MachineOwner
>
> SYMBOL_NAME: nt!KiDeliverApc+16a
>
> MODULE_NAME: nt
>
> IMAGE_NAME: ntoskrnl.exe
>
> DEBUG_FLR_IMAGE_TIMESTAMP: 42250ff9
>
> STACK_COMMAND: .trap fffffffff3519ca4 ; kb
>
> FAILURE_BUCKET_ID: 0xA_nt!KiDeliverApc+16a
>
> BUCKET_ID: 0xA_nt!KiDeliverApc+16a
>
> Followup: MachineOwner
>
This from a full memory dump which is too large to attach