Bluescreen Issue

neptun2211 · 2015-04-07T08:03:15.000Z

Hello,

I have some problem with one computer in my company, every day the computer gets a bluescreen. Its says “Driver_IRDL_NOT_LESS_OR_EQUAL iastor.sys” The computer runs windows 7.

Anyone know what the issue can be?

pbp · 2015-04-07T08:47:11.000Z

iastor.sys = Intel Rapid Storage Technology (RAID) driver

Make & model of computer not mentioned. Update driver from computer OEM vendor and ought be good.

neptun2211 · 2015-04-07T08:59:28.000Z

Okay,

The computer is builded by the user, so i do not know the parts inside it!

Maybe i can try the newest driver from here : http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Chipsets&ProductLine=Chipset+Software&ProductProduct=Intel®+Rapid+Storage+Technology+(Intel®+RST)

joewilliams · 2015-04-07T09:02:28.000Z

Have a look inside. Are the hard drives connected to the motherboard, or a card?

Find the model number (normally printed on the board somewhere), and find the drivers for it.

neptun2211 · 2015-04-07T09:05:36.000Z

The model number on motherboard or the drive

joewilliams · 2015-04-07T09:10:05.000Z

The motherboard, if that’s what the drives are plugged into.

neptun2211 · 2015-04-07T09:11:54.000Z

okay, I will check it

v-s · 2015-04-07T09:20:14.000Z

Get motherboard model number, go to motherboard manufacturer’s site, update all drivers listed for Windows 7 newer than what’s in there now.

Go to Intel’s site, download and run Intel Driver Update Utility. You’re looking for an updated Intel Rapid Storage Technology Driver. You can always download an update to the version you need manually as well.

Reseat the RAM and run Memtest86 or Memtest86+ for several hours. If errors are found, remove chips and test 1 at a time.

When does the error occur: Immediately upon booting, randomly or overnight, or when some specific program is run or specific operation is performed (like a file copy).

You can also try chkdsk c: /x /r

Then have it reboot and check for bad sectors on the HDD and repair problems.

v-s · 2015-04-07T09:32:31.000Z

It’s actually IRQL instead of IRDL, and I really hate that error. Usually when I’ve encountered it, it’s been because of an older problematic driver or problems with 1 or more sticks of RAM.

If the user built the computer, they probably didn’t do proper research on QVL for motherboard components RAM and CPU, and may have not purchased 100% guaranteed compatible components.

jagowu · 2015-04-07T10:30:29.000Z

Driver_IRQL_NOT_LESS_OR_EQUAL is usually bad memory. If you run the built in Windows Memory diags i’m sure it will tell you one stick is bad. It will not tell you which stick so you would need to keep running the memory test until you found the bad stick.

neptun2211 · 2015-04-07T11:52:17.000Z

Okay, The mothermoard is Gigabyte Z97X-UD5H-BK. I will try to test the memory, but where can i find th built in windows mamory or is it better to use memtest86

jagowu · 2015-04-07T16:15:57.000Z

At the desktop click start and type Windows Memory Diags. It will show up and run it.

If you do not want to start it from the desktop then you can do the following:

Power on the PC and the BIOS will appear. It might count memory (depends on your bios boot settings) or you might see the Gigabyte logo.

The second that screen goes away press F9 (same is if you were pressing F8 for safe mode).

A Windows Boot Menu should show. Press Tab key to navigate to the bottom of the page that will highlight the Memory diags tab. Begin Test.

I have used this about 6 times. Each time when windows was acting up the windows memory diags detected a problem with the installed memory. However it did not tell me which stick so I ran the test with each stick till I found the culprit.

neptun2211 · 2015-04-07T17:30:04.000Z

Okay, thanks. I will try it!

neptun2211 · 2015-04-08T10:13:36.000Z

I have a questions, on the computer is it two SSD and in BIOS the raid is disenable. Can this make the issue?

neptun2211 · 2015-04-11T08:53:00.000Z

Need feedback please =)

v-s · 2015-04-11T20:12:19.000Z

You already marked Best Answer, but are you still having this BlueScreen issue? Or was the question about RAID just a follow-up you wanted to inquire about?

If you are still having problems and haven’t been able to narrow down the cause of the BlueScreen using previous recommended methods in this thread, you shouldn’t really put a Best Answer yet, but you can Helpful Posts.

As soon as a Best Answer is selected, many people assume the problem is fixed and no longer follow the thread.

Not having RAID enabled in a computer won’t lead to any problems, unless incorrect drivers or bad hardware are used for the specific configuration that you are using.

If you have 2 SSD, for testing purposes if you still are having the error after updating your storage drivers, video drivers, motherboard drivers and motherboard bios, and after testing each stick of RAM individually using memtest86/memtest86+, then make sure you are using the newest firmware for the SSD drives.

If the manufacturer of the computer put in one or both of the drives, then contact their support to see if they have any SSD firmware updates available for both of your SSD drives.
If you put in one or both of the SSD drives, then you will need to go to the manufacturer’s site or contact their support to get any newer firmware that may be available for the SSD drives.

Many SSD manufacturers will release updated firmware for their drives to fix issues with some systems.

Please be specific as to whether you are still having this issue or not.

neptun2211 · 2015-04-12T05:21:44.000Z

Hello,

Oka, I understand that. It was only a question about the raid.

I have updated all drivers and I have used the windows memory diag. But it was no errer on ram.

I removed the oldest 60 gig ssd, I maybe think the ssd is the issu.

To info the computer runs great after that.

v-s · 2015-04-12T07:34:00.000Z

If it has no bluescreen errors after removing the oldest 60 GB SSD, then there is something related to the SSD or how it was connected that is the root cause of the issue.

A firmware update on the SSD may help, or may not, but never hurts to check with the manufacturer.

Honestly, I’ve never used Windows memory diag, only memtest, so I don’t know exactly how well it works in comparison.

Good to hear your issue is resolved though with the removal of the 60 GB SSD.

Do be sure to include such information the next time you have a question. Indicating you had 2x SSD drives, someone could have helped narrow down the issue sooner.

Technical issues required technical information. Specific error messages as well as specific components that are in the system are necessary for proper troubleshooting of a problem.

I would recommend reading Asking Better Questions for future reference.

neptun2211 · 2015-04-12T08:22:21.000Z

Thanks, I will read the post.

I hope the issue is fixed.