I have a WD1600ys SATA drive on ASUS M2N4-SLI board running XP-Pro. I get an occasional warning in event viewer.ID #51. Sometimes one per day up to 25 in a one minute period.
DetailsProduct:Windows Operating SystemID:51Source:DiskVersion:5.2Symbolic Name:IO_WARNING_PAGING_FAILUREMessage:An error was detected on device %1 during a paging operation. ExplanationAn input/output (I/O) request to a memory-mapped file failed and the operation was retried.
User ActionIf these events are logged regularly on a primary system drive, replace the device. Otherwise, no user action is required.

I spoke with a tech rep. He told me that this was an enterprise drive and should be on a raid controller. It's now on Serial ATA controller. If this's correct, how will I change to raid controller? Do a repair install and F6 the new driver in? Disable the sata controller and hope it finds the drive and boots?
BTW 4 or 5 forums have called BS on this. Any Ideas. I have read MS KB's till my eyes are bleeding. TIA bb

Hi busterb,

Welcome to PCHF.

Did you read this one: http://www.microsoft.com/technet/sup...Disk&LCID=1033

Are there any other symptoms or error messages such as "Delayed Write Failed".

What have you tried to do so far to resolve the problem?

How much RAM do you have in your PC?

Can you tell me the file size of c:\pagefile.sys?

There seems to be many possible causes to this problem, including faulty hardware. I'm not sure about what the tech you spoke to of here is talking about the drive needing to be on a RAID controller? However, I have an identical motherboard to you, I know that all the SATA connections on board are capable of RAID, it just needs to be enabled in BIOS.

I have some other things we can try:
- Go to Start, Run, and type in Regedit.
- In the left hand pane, navigate to the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager\Memory Management\PrefetchParameters
- In the right hand pane, double click on "EnablePrefetcher" and set it to 1.
- Close down Regedit.
- Go to My Computer, Control Panel, System, Hardware tab and click on Device Manager.
- Locate your disk drive here, right click and go to Properties.
- In the Policies tab, untick "Enable write caching to disk".
- Close Device Manager and Reboot. See if your problem goes away.

neat trick, mm.....have to add that one to my tool belt......

Thanks madmonkey. I've not really tried anything, because I'm unsure about this. Most forums. no reply. Been 41/2 yrs since I built one. Technology has out run me again.
My stats are wrong for my computer. Where can I change? Didn't see in my cp.
Yes I read that KB, didn't see any help for me.
2046 MBs V M
2 gig Corsair
WD1600ys hdd.
Raid is enabled
I haven't tried the prefetch fix yet, but will. Can't hurt
Here they call it a myth. Myth - "Adding the /Prefetch:1 Switch to the startup path of a program's shortcut will decrease the program's startup time." But we're not trying to fix startup time.

Thanks again bb

65

I feel kinda unnecessary now. Hardware witzard just popped up. Raid class controller not installed right. Time for repair and F-6, I presume? Check 1st post and see if I have that right, please. Thanks bb

You'll soon know when you make it into setup and it doesn't detect a disk. Then you will need to download the drivers you from the ASUS web site: http://www.asus.com.tw/support/download/download.aspx (VIA RAID), which will come with a makedisk utility. Double click on it to run it, and it will extract all the drivers you need onto floppy.

MM. The myth fix seems to have fixed the warning # 51. None showing at this time. Fingers crossed. I let ya know in a day or 2. Thanks bb