Windows 7 crashes after waking up from sleep mode

I have a habit of upgrading to a reliable Windows version (meaning not ME or Vista) only after its first service pack is available. However this time I was a little bit late. I’ve recently upgraded my Windows XP to 7 and applied all the updates. When I saw my first blue screen of death (IRQL_NOT_LESS_OR_EQUAL), I didn’t care much and just rebooted. But it got annoying when these BSOD’s kept coming with different bug check strings: MEMORY_MANAGEMENT, PFN_LIST_CORRUPT, etc.

I analyzed the minidump files created under C:\Windows\Minidump after each crash with BlueScreenView. They were all commonly addressing to ntoskrnl.exe, NT OS Kernel. I found a hotfix for the solution, but before applying I realized that I have the newer version of the file (from SP1) installed. So, back to square one.

I googled for each error string and found lots of possible solutions. People keep saying: do this and do that… but most of them are dead end and need filtering. All I needed to do is to update device drivers. As a result of analyzing these error messages, I updated my GigaByte 7GA-EP45-DS3R mainboard drivers from its website. I haven’t got any BSOD since, I hope I won’t again.

Apart from this, I was wondering why my computer became unresponsive after it woke up from sleep state. Crash time was totally random. My mouse seemed powered off, without any laser light, nothing. I just had to reboot. I tried:

  • Control Panel -> Device Manager -> (All the USB devices, keyboard, mouse etc.) -> Properties -> Power Management -> Uncheck: “Allow this device to wake the computer”
  • Control Panel -> Power Options -> Change (Active) plan settings -> Change advanced power settings -> Sleep -> Allow hybrid sleep -> Off
  • Control Panel -> Power Options -> Change (Active) plan settings -> Change advanced power settings -> USB -> USB selective suspend setting -> Disabled
  • Changing the sleep state from S3 (Sleep to RAM, which I prefer, quite useful) to S1 in BIOS Power Management

Nothing worked. Finally I decided to flash and update my BIOS. In the mainboard website says “Fixed Vista S3 resume sometimes failed” for the latest version. I backed up my old BIOS, downloaded the newer BIOS image (ep45ds3r.f10)  and applied it with the @BIOS utility:











I needed to go over my BIOS configuration after the update because it was the factory default. I reconfigured it with S3 sleep state this time and left the device manager changes above as it is, unchecked. Looks like it worked 🙂 This is apparently a BIOS based ACPI problem. I’m glad that I can use “Sleep to RAM” option now, because I think it is the “real” sleep mode.

The methods may vary depending on your hardware vendor and configuration. But for the two problems above I can suggest : “Update your BIOS and device drivers.” Good luck 🙂

A4Tech X7 mouse scroll wheel problem and solution

Lately I’d been having a problem with my gaming mouse, A4Tech X7 XL-750BF. It had been making weird jumps while using the scrolling wheel. It is a relatively expensive mouse for throwing out and buying a new one, even it is three years old. When I was googling for a solution, I’ve found out that it is a general problem with A4Tech mice. Too little or dried off lubricant from the factory causes malfunction as the time goes by. But there is a cheap and easy solution for it: petroleum jelly a.k.a. pure vaseline. You can easily get it from a pharmacy.

In this post I’ll be telling how I fixed it with pictures. Click them to view full-size. I now have a mouse like the day I bought it and I hope this post helps others 🙂

IMPORTANT: I confidently open up my devices but I must warn you, this voids the warranty. I just shared my experiences and I must also say that I’m not responsible from the damage you can give to your device because of any lack of skill or misapplication or… just anything.

Read moreA4Tech X7 mouse scroll wheel problem and solution

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