XP just won't shut down! And it reboots randomly. Sometimes it keeps happening for 
the whole week, sometimes it runs like a dream. I didn't know what to do till I saw 
the messages posted on this forum. Though I've tried most of them, this error still 
occurs. Its driving me crazy - just hope anyone can help me with this:

Event Type:	Error
Event Source:	ACPI
Event Category:	None
Event ID:	4
Description:
AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which 
lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. 
Please contact your system vendor for technical assistance.
Data:
0000: 00 00 00 00 04 00 52 00   ......R.
0008: 00 00 00 00 04 00 05 c0   .......À
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   ........

[Reply or follow-up to this message]

Have a read...www.jsifaq.com/SUBJ/tip4500/rh4563.htm....


On Sunday, February 23, 2003 at 6:03 am, Greebo wrote:

>XP just won't shut down! And it reboots randomly. Sometimes it keeps happening for 
>the whole week, sometimes it runs like a dream. I didn't know what to do till I 
saw 
>the messages posted on this forum. Though I've tried most of them, this error still 
>occurs. Its driving me crazy - just hope anyone can help me with this:
>
>Event Type:	Error
>Event Source:	ACPI
>Event Category:	None
>Event ID:	4
>Description:
>AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which 
>lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. 
>Please contact your system vendor for technical assistance.
>Data:
>0000: 00 00 00 00 04 00 52 00   ......R.
>0008: 00 00 00 00 04 00 05 c0   .......À
>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   ........

[Reply or follow-up to this message]

I've alraedy updated my BIOS, but to no avail.. :(

Just tried sending the error report to Microsoft - their analysis points at MSI PC 
Alert 3! Will try to get that updated as well.. hope it finally works..

[Reply or follow-up to this message]

I have encountered this very same phenomenon and I thought it to be a combination of the ASUS / VIA / NVidia chipsets, but I've since changed the block size of the root partition from 4K to 16K. Now you might think this has nothing to do with it but I've not encountered the problem and it's been a week. Prior to this change, it was about 1/24hrs. Just a thought....


On Sunday, February 23, 2003 at 6:03 am, Greebo wrote:

>XP just won't shut down! And it reboots randomly. Sometimes it keeps happening for 
>the whole week, sometimes it runs like a dream. I didn't know what to do till I 
saw 
>the messages posted on this forum. Though I've tried most of them, this error still 
>occurs. Its driving me crazy - just hope anyone can help me with this:
>
>Event Type:	Error
>Event Source:	ACPI
>Event Category:	None
>Event ID:	4
>Description:
>AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which 
>lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. 
>Please contact your system vendor for technical assistance.
>Data:
>0000: 00 00 00 00 04 00 52 00   ......R.
>0008: 00 00 00 00 04 00 05 c0   .......À
>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   ........

[Reply or follow-up to this message]

Hi there, I read your msg re XP rebooting itself on a random basis with much interest. You state that you chgd the block size of the root partition from 4k to 16k. Can you pls tell me how i do this, i'm willing to try anything as i have the same prob & it's driving me nuts.


On Monday, June 9, 2003 at 6:40 pm, Carter wrote:
>I have encountered this very same phenomenon and I thought it to be a combination
>of the ASUS / VIA / NVidia chipsets, but I've since changed the block size of the
>root partition from 4K to 16K. Now you might think this has nothing to do with it
>but I've not encountered the problem and it's been a week. Prior to this change,
>it was about 1/24hrs.
>
>Just a thought....
>
>

[Reply or follow-up to this message]

Actually, it seemed to resolve the issue for about a week there, but alas, it's now back. I'm not sure what software I installed and all the troubleshooting seems to point to a combination of hardware, VIA chipset, NVidia video drivers and possiby the Avance Audio drivers. Not sure because initially, I rebuilt my system and used the ASUS specific drivers for my video card (GeForce V9280) and that seemed to have favorable results. However, the problem came back in about 4 days. To change the block size, I simply used Partition magic. I only changed the block size of the root partition because that's where I keep my pagefile and it's static at 2.5 x my physical amount of DDR RAM. I've also attempted to rebuild the pagefile by setting the size to 0, rebooting then resetting the size to 1024. No dice man. I have no idea now and I really thought that the block size had it licked when I didn't have the problem for 7 days. All I get now is a system error, ID 1003. Everyone says it's hardware but the verifier.exe says it's all good. So, I have no idea, now I'm thinking to install 98 or 2000 and check for the problem therein. Good luck, Carter


On Sunday, June 15, 2003 at 12:11 pm, David Dunn wrote:
>Hi there,
>
>I read your msg re XP rebooting itself on a random basis with much interest. You
>state that you chgd the block size of the root partition from 4k to 16k. Can you
>pls tell me how i do this, i'm willing to try anything as i have the same prob &
>it's driving me nuts.
>
>

[Reply or follow-up to this message]

Yes. Since Microsoft put the video and printer drivers at Kernel privilege on the NT4 ( because this way runs faster :-(((( ), strange things begin to happend. That kind of programming just sucks...


On Sunday, June 15, 2003 at 7:01 pm, Carter wrote:
>Actually, it seemed to resolve the issue for about a week there, but alas, it's now
>back. I'm not sure what software I installed and all the troubleshooting seems to
>point to a combination of hardware, VIA chipset, NVidia video drivers and possiby
>the Avance Audio drivers. Not sure because initially, I rebuilt my system and used
>the ASUS specific drivers for my video card (GeForce V9280) and that seemed to have
>favorable results. However, the problem came back in about 4 days. To change the
>block size, I simply used Partition magic. I only changed the block size of the
>root partition because that's where I keep my pagefile and it's static at 2.5 x my
>physical amount of DDR RAM. I've also attempted to rebuild the pagefile by setting
>the size to 0, rebooting then resetting the size to 1024. No dice man.
>
>I have no idea now and I really thought that the block size had it licked when I
>didn't have the problem for 7 days. All I get now is a system error, ID 1003. Everyone
>says it's hardware but the verifier.exe says it's all good. So, I have no idea,
>now I'm thinking to install 98 or 2000 and check for the problem therein.
>
>Good luck,
>
>Carter
>
>

[Reply or follow-up to this message]

I have had the same problem for quite some time. Now keep in mind that the ONLY message is a generic system message in the Event log (1003). It's non-specific. Usually means to check the hardware I see by general concensus. I finally decided to look at the memory modules. There was absolutely NO indication prior this whim that would make me think to examine the memory. I have an Asus A7V8X powered by the VIA KT400 chipset, 2 x 256 MB DDR PC2700 with an AMD Athlon XP 2000+ CPU. The modules are as follows: Samsung K4H280838D-TCB3 Infineon HYB25D256800BT-6 Both run and LONG post fine when inserted by themselves. However, if the Samsung is inserted into BANK0 and the Infineon into BANK1, the machine will LONG post fine but ends up crashing eventually. If the order is reversed, the machine will show the initial post screen but will not test the memory. There is no error provided but the memory count does not even begin. I was able to find specs (highly detailed) for the Infineon DDR but NOT for the Samsung. Apparently when you venture to Samsung's site, they don't make memory modules. I searched the web and was unable to obatain anything OFFICIAL regarding this particular memory module from Samsung. However, I'm thinking that the Infineon is slower than the Samsung thus the Samsung must be inserted first. This is what happens when you order memory online and can't define what you want by manufacturer just by type, you get mismatched items. I'm hoping to return the Infineon in exchange for another Samsung or send back both for a matched set. Thought this might help others in similar situations. Good luck, Carter


On Sunday, June 15, 2003 at 12:11 pm, David Dunn wrote:
>Hi there,
>
>I read your msg re XP rebooting itself on a random basis with much interest. You
>state that you chgd the block size of the root partition from 4k to 16k. Can you
>pls tell me how i do this, i'm willing to try anything as i have the same prob &
>it's driving me nuts.
>
>

[Reply or follow-up to this message]

I have the same problem. I am running an AMD Athlon Processor IS EVERYBODY else running an AMD that runs into this problem?? I am assuming so...please respond.


On Sunday, February 23, 2003 at 6:03 am, Greebo wrote:

>XP just won't shut down! And it reboots randomly. Sometimes it keeps happening for 
>the whole week, sometimes it runs like a dream. I didn't know what to do till I 
saw 
>the messages posted on this forum. Though I've tried most of them, this error still 
>occurs. Its driving me crazy - just hope anyone can help me with this:
>
>Event Type:	Error
>Event Source:	ACPI
>Event Category:	None
>Event ID:	4
>Description:
>AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which 
>lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. 
>Please contact your system vendor for technical assistance.
>Data:
>0000: 00 00 00 00 04 00 52 00   ......R.
>0008: 00 00 00 00 04 00 05 c0   .......À
>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   ........

[Reply or follow-up to this message]

Nope. Same error different CPU breeding...

Currently running Intel STL2 server board, Dual Intel 1Ghz PIII and getting the same 
errors but with slightly less system instability than previous people have posted...i'm 
just tired of the damn thing showing up in my event logs.

Keep in mind this is a stock server board, a fresh bios revision update with a system 
built to intel spec using components that would conflict ...just XP not playing nicely 
with the ACPI bios...

I seem to remember seeing a solution somewhere not too long ago with something to 
do with hitting a specific function key (like F6 or F8...) during the initial install 
setup of XP to specify how ACPI and XP interact...

If i ever figure it out i'll post the solution...






On Tuesday, October 7, 2003 at 11:20 am, Joseph Stacy wrote:
>I have the same problem. I am running an AMD Athlon Processor IS EVERYBODY else 
running 
>an AMD that runs into this problem?? I am assuming so...please respond.
>
>

[Reply or follow-up to this message]

Try setting PnP OS to "No" in BIOS. See http://support.microsoft.com/?kbid=321779.


On Tuesday, October 7, 2003 at 11:20 am, Joseph Stacy wrote:
>I have the same problem. I am running an AMD Athlon Processor IS EVERYBODY else running
>an AMD that runs into this problem?? I am assuming so...please respond.
>
>

[Reply or follow-up to this message]

Does everyone have a keyboard with remote power on features on it? Or keyboard 1-key touch e-mail/internet launch buttons? If so, this is where your problem may be caused. Put in a regular keyboard, reboot and see if it persists. Turning the PNP in the bios to 'no' is a temporary solution. -Jim


On Monday, October 13, 2003 at 11:53 am, c wrote:
>Try setting PnP OS to "No" in BIOS. See http://support.microsoft.com/?kbid=321779.
>
>

[Reply or follow-up to this message]

If you have an AMD-based system (Athlon, Duron, Thunderbird, etc.) then your problem may be due to incompatibility between some Socket-A mainboards (BIOS) and Windows XP. I was experiencing frequent spontaneous reboots and crashes after installing Windows XP and found the same error message you describe. My solution (permanent, so far, going on 4 months) was to simply disable ACPI in Device Manager. I also disabled PnP in the BIOS so that BIOS now assigns IRQs, etc., instead of Windows. (It seems to do a better job.)

[Reply or follow-up to this message]

I am using a PC-Chips M787CL with onboard VIA cpu. I have the same problem , IF I inserted the USB wireless adaptor b4 I boot up the system. If I don't insert it b4 boot up, it runs smoothly.

[Reply or follow-up to this message]

Could you please explain how to disable ACPI in device manager? Thanks =)


On Wednesday, October 29, 2003 at 12:09 am, Cinder wrote:
>If you have an AMD-based system (Athlon, Duron, Thunderbird, etc.) then your problem
>may be due to incompatibility between some Socket-A mainboards (BIOS) and Windows
>XP.
>
>I was experiencing frequent spontaneous reboots and crashes after installing Windows
>XP and found the same error message you describe. My solution (permanent, so far,
>going on 4 months) was to simply disable ACPI in Device Manager.
>I also disabled PnP in the BIOS so that BIOS now assigns IRQs, etc., instead of Windows.
>(It seems to do a better job.)
>

[Reply or follow-up to this message]

Source: ACPI Catagory: None Event ID: 4 Description: AMLI: ACPI BIOS is attemting to read from an illegal IO port address (0x71) which lies in the 0x70-0x71 protected address range. Everything I researched and read on this error,, said I needed to update my BIOS. And believe me a lot of people are getting this error,which is a shame because they are all Flashing Their Bios and may not even need to. Anyway I sent this error to PerfectDisk and they replyed and ask one question:Do you have StyleXP installed on this machine?" MY reply was YES I DO. I was waiting for there reply and desided to uninstall StyleXP and give the Offline Defrag a shot,,and guess what? YEP,,, it worked like a charm. Can you believe this,,I reformated and did a clean install{Which is OK cause it was needed anyway" but I was about to start looking for a BIOS Flash Update. Now see how a little program can screw everything up. Man oh man

[Reply or follow-up to this message]

Hi I have same problem of computer freezing. I will be obliged if you let me know How did you solve your problem. Thanks


On Sunday, February 23, 2003 at 6:15 am, triplate wrote:
>Have a read...www.jsifaq.com/SUBJ/tip4500/rh4563.htm....
>
>

[Reply or follow-up to this message]

Hi. I know this thread is old but I wanted to add my discovery to the list of fixes. I had found the acpi error event ID4 & 5 on two different AMD Duron based systems. In both cases I reformated the disk to FAT32 and the freezes/crashes disappeared. No idea why it worked - but it did! Andy


On Saturday, August 14, 2004 at 11:02 am, steve wrote:
>Hi
>I have same problem of computer freezing. I will be obliged if you let me know How
>did you solve your problem. Thanks
>
>
>

[Reply or follow-up to this message]

Microsoft suggests that you install an ACPI driver during an install or an in place upgrade of winXP. This article from Microsoft explains the procedure you would follow. http://support.microsoft.com/default.aspx?scid=kb;en-us;299340

[Reply or follow-up to this message]

Someone wrote: " My solution (permanent, so far, going on 4 months) was to simply disable ACPI in Device Manager. " I also tried to do that. In the Control Panel, Systems Properties, Device Manager, ACPI is the first item on the list when you expand the computer icon. It is called Advanced Configuration and Power Interface (ACPI) PC. But alas, there are no options to disable or uninstall it. So what's the secret? How did you disable your ACPI?


On Friday, December 26, 2003 at 3:32 am, sphyr^ wrote:
>Could you please explain how to disable ACPI in device manager? Thanks =)
>
>

[Reply or follow-up to this message]

I have the same problem. It was coupled by an "imminent disk failure". I opened the computer up after it had failed and checked the temperatures. The video card and hard drive had very high temps even after cooling. Perhaps heat problems can be a factor?


On Sunday, February 23, 2003 at 6:03 am, Greebo wrote:
>
>XP just won't shut down! And it reboots randomly. Sometimes it keeps happening for
>the whole week, sometimes it runs like a dream. I didn't know what to do till I saw
>the messages posted on this forum. Though I've tried most of them, this error still
>occurs. Its driving me crazy - just hope anyone can help me with this:
>
>Event Type: Error
>Event Source: ACPI
>Event Category: None
>Event ID: 4
>Description:
>AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which
>lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability.
>Please contact your system vendor for technical assistance.
>Data:
>0000: 00 00 00 00 04 00 52 00 ......R.
>0008: 00 00 00 00 04 00 05 c0 .......À
>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 ........

[Reply or follow-up to this message]

Yes. Overheating is becoming more of a problem than it used to be. Modern CPUs, motherboard chipsets and Video cards can get frighteningly hot, especially if their cooling fans are not working properly. Overheating can cause all sorts of strange faults to appear, as well as shortening the life of the machine in general. My ex-wife once called me over to look at her new PC that was playing up - it was inside a closed cupboard (because it "looked untidy") and you could have fried an egg on the top of the case! Cheers. Spexx.

[Reply or follow-up to this message]

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