Windows 7: BSOD irql not less or equal, memory management and more

I am at my wits end!

i have had my custom built computer for almost 2 years now used to have an ASUS P5N32-E SLI Plus AiLifestyle nForce 650i SLI/570 SLI Socket 775 8 channel audio ATX Motherboard and thought that it was causing my blue screens due to the chipset on the board being quite frankly rubbish.

I have just recently got the Asus P5Q Deluxe P45 Socket 775 8 Channel Audio ATX Motherboard to replace it i am still using the same ram as in my old rig where i was getting the problems Corsair 2GB (2x1GB) DDR2 800MHz/PC2-6400 XMS2 Memory Non-ECC Unbuffered CL4 Lifetime Warranty and the same harddrive Seagate ST3500320AS 500GB Hard Drive SATA II 7200rpm *32MB Cache* - OEM and the same psu Coolermaster 1000W RealPower Modular PSU - 4x 6pin and 2x 8pin PCI-E, 8x SATA.

I continue to get BSOD's saying irql_not_less_or_equal or PFN-list_corrupt or memory_management.

a lot of wesites are saying that it is a problem with my ram. however i am unable to test the ram as the syxel routers i use are not compatible with windows 7 and i use my laptop to post this message now. i have also tried to install and run the memtest programs but it wont install onto my computer!




The most recent error i got was today at apporximate 1200 hours when it said pfn_list_corrupt. i was installing gears of war and it had almost finished doing it, was just unzipping some stuff and it would have worked.

if any of you gus want me to post the dump thing the computer does you will have to advise me as i dont have a clue how to do it.

these are the specs of my computer

Asus P5Q Deluxe P45 Socket 775 8 Channel Audio ATX Motherboard

Seagate ST3500320AS 500GB Hard Drive SATA II 7200rpm *32MB Cache* - OEM

Coolermaster 1000W RealPower Modular PSU - 4x 6pin and 2x 8pin PCI-E, 8x SATA

Intel Core 2 Quad Q6600 G0 Stepping (2.4GHz 1066MHz) Socket 775 L2 8MB Cache (2x4MB (4MB per core pair) Retail Boxed Processor

Corsair 2GB (2x1GB) DDR2 800MHz/PC2-6400 XMS2 Memory Non-ECC Unbuffered CL4 Lifetime Warranty

Microsoft Windows 7 Home Premium - Licence and media - 1 PC - OEM - DVD - 64-bit - English

ZOTAC Geforce GTX275 AMP 896MB GDDR3 Dual DVI HDTV Out PhysX and Cuda ready PCI-E Graphics Card

I have such a powerful PSU because i used to run SLI 8800GT's and i did intend to overclock the system. but considering the system wont even run at normal standard i think it's a tad ambitious at this point in time.

It is normally when i am doing stuff on my computer, esspecially when installing/playing a game that it will blue screen. Please help as i have spent a lot of time and effort on this machine and i am ready to just chuck the damn thing out the window.

i have just managed to find the error that was displayed after i logged back on. i was unable to find any others as the pc didnt archive them! i hope this helps

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 2057

Additional information about the problem:
BCCode: 4e
BCP1: 0000000000000099
BCP2: 0000000000092084
BCP3: 0000000000000002
BCP4: 000000000009B2B6
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\021610-27253-01.dmp
C:\Users\Karandras\AppData\Local\Temp\WER-34320-0.sysdata.xml

Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt
I have also run windows memory test but it seems to have frozen at 7% so im stuffed for other ideas. all i remember the test saying was that hardware problems were detected.

I was having that issue the other day. I got both the IRQ and Memory_Management BSODs. It turned out to be a bad stick of RAM. If you can't test your RAM by removing sticks, then it could be really hard to figure out what stick is bad. Have you tried Memtest86?

yeh ive tried memtest, it wont run on my comp, unless burning it ot disk was the wrong thing but i thought it was how it worked.

So the question is...are you able to open your comp and remove Ram sticks? If so, I would pull out all the sticks but one, and then run some memory intensive apps for a bit. If it doesn't blue screen, open up your comp and pop in another stick. Repeat until you blue screen. Odds are, the last stick that you put in before you blue screened is the one that is bad.

Keep in mind though, you may have more than one bad stick.

Ok cheers ill try that and then report back, i can open up my comp, although it is my friend who normally fiddles with the innards of it. he is taking it today so he is gonna re-install windows, test the memory and do other stuff with it. Ive heard it could be a problem with the HDD also.