Random BSODs when not plugged into external monitor

[dport512]

I've been getting BSODs a few times a day when I'm not plugged into an external monitor. Sometimes I'll get an artifacted screen or just a random restart. I thought it might be an overheating issue so I took apart my computer and cleaned all the dust out. While it helped temperatures a little, it didn't solve any of the restarting problems. The max temperature range has been similar (around 64-67~ degrees C under load) but the min and average has been a little better. (47 and low to mid 50s respectively)

The main filenames that have come up in the BSODs have been

• ntoskrnl.exe
• intelppm.sys

Things I've done

• My problems started on 8, so I did a fresh reinstall of Windows, updated to 8.1 and reinstalled all the newest drivers
• I kept having problems so I uninstalled the newest processor driver from Intel and used the one that HP suggested. If anything the BSODs have been more frequent.
• I've done the standard diagnostic tests in the HP PC Hardware Diagnostics (UEFI) tool without any errors although twice after my computer has been having rebooting fits it has frozen up before I even got to the tests.
• I've done Intel's Processor Diagnosis Tool a few times and have passed everything at load level 8. It says my temperature is 35 degrees C below maximum.

Things I haven't done

• Memtest for any extended length of time
• Anything y'all can come up with

I've attached the output the SF Diagnostic Tool is giving me.

Thanks for the help. Any ideas are really appreciated.

edit:
and if it's not a driver issue, I'm hoping it's a memory one. Since the Intel HD 3000 would share system RAM, if the system RAM was faulty that could be a reason why my computer 1) freezes outside of windows on occasion, 2)artifacts w/ a frozen system, 3) BSODs.

I'm not sure why it would change when I plug a monitor in through HDMI though. I don't know if or how the HD3000 would handle an external monitor any differently.

 

[lifetec]

To start with.

In your dumpfiles bsod were a probably caused by hardware and memory exception.

So testing your memory with memtest Memory Diagnostics would be a good idea.

 

[dport512]

To start with.

In your dumpfiles bsod were a probably caused by hardware and memory exception.

So testing your memory with memtest Memory Diagnostics would be a good idea.

Thanks! I'll start on that.

 

[Surgikill]

Check your RAM. If it shows any errors at all with memtest call up hp and have them overnight a replacement stick. I had the same problem and chased my tail because sometimes memtest would throw an error and sometimes it wouldn't. I guarantee bad RAM, they probably had a bad batch come in from ADATA.