I have been gettin ga blue screen of death after running games for a period of time. The music and frame rate would decline noticeably and then either I get a PAGE_FAULT_IN_NON_PAGED_AREA fault or IRQ_NOT_LESS_OR_EQUAL. I have checked for virus and cannot find any with McAfee. This error doesn't happen if I'm just browsing the web, so I think it might be a driver or memory issue. I have included the system dump files. It doesn't happen every time but is pretty frequent, maybe once per 4-5 uses. I don't think it's related, but I've noticed with IE8 I get a lot of "Windows it not responding" error when openly pages that appear to be perfectly valid. I seem to have more problem with McAfee compared to the last antivirus I used (Norton). http://cid-815aea786b1937f6.office.live.com/self.aspx/public/Minidump.rar

Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA - This indicates that invalid system memory has been referenced. Cause Bug check 0x50 usually occurs after the installation of faulty hardware or in the event of failure of installed hardware (usually related to defective RAM, be it main memory, L2 RAM cache, or video RAM). Another common cause is the installation of a faulty system service. Antivirus software can also trigger this error, as can a corrupted NTFS volume. Resolution Resolving a faulty hardware problem: If hardware has been added to the system recently, remove it to see if the error recurs. If existing hardware has failed, remove or replace the faulty component. You should run hardware diagnostics supplied by the system manufacturer. For details on these procedures, see the owner's manual for your computer. STACK_TEXT: nt!KeBugCheckEx nt! ?? ::FNODOBFM::`string'+0x42837 nt!KiPageFault+0x16e nt!AlpcpWalkConnectionList+0x1f nt!AlpcpDisconnectPort+0x401 nt!AlpcpDoPortCleanup+0x19 nt!AlpcpClosePort+0x44 Because the crash happens in a internal NT Kernel call (ALPC - Advanve Local Procedure Call which is not publicly available) you should check the RAM with memtest86+. BiosVersion = 5.28 BiosReleaseDate = 04/09/2010 SystemManufacturer = HP-Pavilion SystemProductName = AU850AA-ABA e9290f Is this the latest BIOS? Was the HYNIX RAM (HMT112U6BFR8C-H9) installed or have you upgraded the RAM? At which timings do you run the RAM? I can only see that it runs at 533MHz (1066MHz). Also the other modules have no manufacture listed. Is this NoName RAM? André"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

I just installed the latest BIOS from HP. Tried memtest86 and it yielded no errors. I don't know what the RAM is. It's just whatever came with the computer when I bought it, but memtest86 says it's Elpida EBJ21? I have never changed any settings for the RAM. I read that anti virus can lead to this error too and I started getting the error after I switched from Norton to McAfee, so I'm going to uninstall McAfee and go back to Norton. All the hardware in the computer has been unchanged since I got the computer (it's a HP elite e9290f) except for a new monitor. The crash doesn't happen all the time. It started happening around 3 months or so ago while playing games, and then it stopped for a while, but now it's back again. It seems to happen more often while the computer is doing intensive work, but even that is intermittent. For example I could run a game 10 times in a row with no problem and then it'd BSOD the next 2 times. Is there anything else you recommend to try looking for?

1 module is HYNIX RAM, I can't read the Name of the other RAM modules. Run CPU-Z [1] and post a screenshot of Memory and SPD (1 picture for each RAM module) tab and upload the pictures. André [1] http://www.cpuid.com/softwares/cpu-z.html"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

I put it in my public folder. They're named memory.jpg and spd(1 through 6).jpg. http://cid-815aea786b1937f6.office.live.com/browse.aspx/public

Remove the 3 1024MB modules and only run the PC with the 3 2GB modules. May the PEGATRON motherboard has some issues with your RAM combination. "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

should the 2GB modules be moved to where the 1GB used to be, or just leave them in the same spot?

Look at the motherboard manual how to install the RAM to use triple channel (if your motherboard supports this)."A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

You may temporary remove Norton and see if it still occurs. Have you upgrade your BIOS and chipset drivers?Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I replaced McAfee with Norton and haven't got the problem yet. I got the newest bios installed and so far the problem hasn't occurred yet. It's not very frequent to begin with so I can't say for sure but so far it's working.

I updated all the drivers/chipset/etc but still get the problem intermittently. It seems like it happens on a per bootup basis. Either I get it immediately after I start running a game, or I don't get it at all no matter how long the computer is running. The recent crashes don't have a message like PAGE_FAULT_IN_NONPAGED_AREA, just says a clock interrupt error occurred and the computer has been shut down to prevent damages, and reboots itself. I also noticed each time I crash I seem to lose all my cookies/settings for IE. Is there a reason why this is happening?

Have you removed the RAM modules as suggested?"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/