Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a HP Pavillion dv5224ea Laptop with Windows 7 on it. Recently I discovered a Error in Event Viewer:

The driver detected a controller error on \Device\Ide\IdePort1.

(more details):

- System 

  - Provider 

   [ Name]  atapi 

  - EventID 11 

   [ Qualifiers]  49156 

   Level 2 

   Task 0 

   Keywords 0x80000000000000 

  - TimeCreated 

   [ SystemTime]  2010-03-07T12:43:07.090197600Z 

   EventRecordID 30198 

   Channel System 

   Computer Alistair-Win7 


- EventData 



Binary data:

In Words

0000: 00100000 00000001 00000000 C004000B 
0008: 00000002 C0000185 00000000 00000000 
0010: 00000000 00000000 00000000 00000000 
0018: 00000000 00001004   

In Bytes

0000: 00 00 10 00 01 00 00 00   ........
0008: 00 00 00 00 0B 00 04 C0   .......À
0010: 02 00 00 00 85 01 00 C0   ......À
0018: 00 00 00 00 00 00 00 00   ........
0020: 00 00 00 00 00 00 00 00   ........
0028: 00 00 00 00 00 00 00 00   ........
0030: 00 00 00 00 04 10 00 00   ........

Event Viewer is recording A LOT of these errors (sometimes 13, one after the other!). Do I need to worry? What does this error mean? What device could "\Device\Ide\IdePort1" be? What is a ATAPI Error? Do I need to re-install Windows? I generally find the occurs when I try to backup my machine (using Windows Backup) or when using a program that uses Volume Shadow Copy. I have run "sfc", no problems. There are no Device Errors in Device Manager. I have also run "vssadmin list writers", no problems. Whats going on??? Would it be a good idea to re-install Windows 7?

share|improve this question
Try running 'chkdsk c: /f' to see if there are any issues. – MrStatic Mar 8 '10 at 6:23
I have run chkdsk c: /f /r /b, no problems... – Kryten Mar 8 '10 at 6:29
Windows logs everything, so if the machine is working I wouldn't worry about it. If the machine is hanging, my guess is that you're having an issue with either a disk drive or an optical drive, most likely. Could be a loose cable or a failing drive or maybe you need to reinstall drivers. Do you have any idea what kind of device you actually have installed on IDE port 1? – goblinbox Mar 8 '10 at 6:30
No, I have no idea. Anyway I can find out? – Kryten Mar 8 '10 at 6:37
I think you should go to the laptop manufacturer's forums and ask there. The only way I know how to know for sure, other than that, would be to open it up and look. – goblinbox Mar 8 '10 at 10:10

First off, this seems to be an error for the second SATA port since numbering starts at 0 for computers and it specifies 'atapi' which is what SATA is based off of.

I suggest looking under the device manager to see what device is hooked onto port 1, and if it is the cd drive, don't worry about it. If it is a harddrive, keep semi-frequent backups.

share|improve this answer

Maybe you should check SMART logs/information of your HDD. Just google for "smart monitoring tools windows".

If they're fine, then reinstalling Windows should help. If they aren't, maybe it's a better idea to replace HDD preventively.

Edit: also it may be caused by loose SATA connector.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.