Hi, I have a problem with my Acer Aspire 5732Z laptop.
Upon boot up, I get a blue screen saying there is an error with my computer, and the following file name appears: DRIVER_IRQL_NOT_LESS_OR_EQUAL
It seems you have an IRQ conflict. You install a driver and it wants to use an IRQ which is already assigned to a different device. That's why you can start in safe mode because the drivers for your added devices are not loaded.
The computing phrase "interrupt request" (or IRQ) is used to refer to either the act of interrupting the bus lines used to signal an interrupt, or the interrupt input lines on a Programmable Interrupt Controller (PIC). The interrupt request level (IRQL) is the priority of an interrupt request.
In computing, an IRQ conflict is a once common hardware error, received when two devices were trying to use the same interrupt request (or IRQ) to signal an interrupt to the Programmable Interrupt Controller (PIC).
The PIC expects interrupt requests from only one device per line, thus more than one device sending IRQ signals along the same line will generally cause an IRQ conflict that can freeze a computer.
To view your current IRQ assignments you can open Device Manager. Click on START, click on CONTROL PANEL. Click on Performance and Maintenance. Click on System. Click on the Hardware tab. Click the DEVICE MANAGER button. Once you have Device Manager open, select VIEW from the tool-bar menu, and then click Resources by Type. Double click on Interrupt Request (IRQ). If you are experiencing problems with a newly installed/configured piece of hardware and the drivers are installed correctly, then check to see if it has its own IRQ channel.
To change an IRQ setting follow these steps:
-Right click on the device in the list (see above), and then select properties.
-Click the Resources tab.
-Remove the tick from the Use automatic settings option.
-Select a non-conflicting configuration from the pull down box.
Dec 18, 2010 |
Acer PC Laptops