Driver IRQL less than or equal error

[agniparva]

I have Windows XP home edition SP2 / 2GB RAM / 6800GT / D865GBF motherboard / Intel 2.8GHz CPU

I have Airtel Broadband connection using USB modem which uses driver called gaausb.sys

Recently I started getting this blue screen error stating "Driver IRQL less than or equal" and mentioning gaausb.sys at the bottom.

I ran memory test and apparently there are error bits.

Is there a way to solve this problem ?

By the way, this problem only happens when I log in to windows.

[bottle]

have you tried updating the modem drivers ? is there anything specific (or any pattern) that triggers the bsod ?

what are you using to test the memory ? recommended s'ware is memtest86, try adjusting the memory timings in the bios to suit your ram and run memtest again or else it could be time to get a replacement

[agniparva]

I am using memtest-86 v3.2 by Chris Brady.

BSOD - what triggers it, I have no clue. Today, when I booted my system, it sailed through without any problem.

But it seems to be triggered by the modem driver gaausb.sys

how to identify the chipset of the modem. I am using xentrix x7005q USB modem.

[UNICORN]

Déjà Vu!

Check this thread
Blue Screen of Death -- HELLPPP!!! URGENT

[agniparva]

I finally got rid of BSOD. Just swapped the USB Modem for an ethernet modem. Connected it through my Netgear Wirelss Router. Voila! No more BSOD.

[Michael25]

BSoD is normally caused by bad drivers or system devices. follow these steps to remove unused drivers to see if its an unused driver is causng the problem:

• Go to System Properties dialog by pressing [Windows]+[Break],
• Select the Advanced tab and click the Environment Variables button.
• Click the New button below the System Variables panel.
• In the New System Variable dialog box, type devmgr_show_nonpresent_devices in the Variable Name text box and 1 in the Variable Value text box.
• Click OK to return to the System Properties dialog box and then click OK again.
• Select the Hardware tab and click the Device Manager button.
• In Device Manager, go to View | Show Hidden Devices.
• Expand the various branches in the device tree and look for the washed out icons, which indicate unused device drivers.
• To remove an unused device driver, right-click the icon and select Uninstall.