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ACPI BIOS reading illegal address

post #1 of 4
Thread Starter 
I built a new computer for a friend and he's having a problem with it that I can't figure out. When he plays WoW (World of Warcraft), the computer locks up on him. It does it at random times. At first I thought it was a heating issue being that it's so graphic intense, but I've ran software like SiSoft Sandra and Everest and the temps are around 65-68 c at peak. It idles at 52c or so. He every so oftens get a blue screen when it freezes saying something about memory error but i haven't been able to see it for myself. I did however look into the event viewer and found errors. The description is as follows: AMLI: ACPI BIOS is attempting to read from an illegal IO address (0x21), which lies in the 0x20 - 0x21 protected address range. This could lead to system instability. The data reads as follows:
0000: 00 00 00 00 04 00 52 00
0008: 00 00 00 00 04 00 05 c0
0010: 00 00 00 00 00 00 00 00
0018: 00 00 00 00 00 00 00 00
0020: 00 00 00 00 00 00 00 00

I'm seeing alot of these errors, but not sure if they are coinciding with the lockups on his game. The entire system runs super fast and stable except with this game for some reason. The system is as follows:

DualCore AMD Athlon 64 X2 4400+ (2200mhz 11x200) Toledo S939
2 x 1GB OCZ4001024ELDCTE-K
ATI Radeon x800 XL PCI-E 16
Sapphire Pure Innovation PI-A9RX480 (Radeon Xpress 200P chipset)
and the rest is the normal stuff.

I'd really appreciate any help given and feel free to reply if you need more information or shoot me an email at nascar46l@yahoo.com
post #2 of 4
WOW... temps are HIGH!
50ish is considered the max under full load!!!
You may have a seating issue with the FHS and I hope you have good int the bottom out the top case air flow.
    
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X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
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MS KU462 Natural SS DA750 MS 5 button 
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post #3 of 4
Well, you could disable ACPI in BIOS.

Or try setting PnP OS to no.

You on most recent BIOS?
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post #4 of 4
Thread Starter 
When I disable ACPI the computer never makes it to the Windows XP logo before rebooting. It doesn't give me a yes or no for PnP OS, only gives me option to assign it manually and only from IRQ's 3-15
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