Keyboard Failure Dell Inspiron 580

January 23, 2012 at 14:09:24
Specs: Windows 7, hgf
Hello again,
I've got a customer with what sounds like a memory issue. I want to run Memtest86+ on it, but there is an issue. On bootup, I get "keyboard failure" and I can't enter the BIOS to change the boot device priority so that I can load Memtest86+ from a flash drive or cd. The keyboard works fine once I'm into Windows, but I can't use it before Windows loads.
Things tried:
Reset CMOS.
Unplugged all other usb devices, including card reader internally.
Checked device manager, looks clean.

Thanks for any help.


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#1
January 23, 2012 at 14:31:46
Couple of other things I forgot to mention... I also tried sfc /scannow, and there are no PS/2 ports on the motherboard. USB only.

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#2
January 23, 2012 at 15:00:10
Have you tried a different keyboard?

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#3
January 23, 2012 at 16:22:16
Nope. I'll have to find one.

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#4
January 24, 2012 at 06:42:20
As it turns out, I may be barking up the wrong tree anyway. I don't know how reliable MemTest by HCI Design (a Windows-based RAM tester) is, but it came up with 0 memory errors over the course of about an hour of running (over 100% coverage). I'm willing to concede that I'm not going to be able to run MemTest86+ as long as MemTest by HCI Design is reliable. I'll make a different post about this customer's main problem (computer shuts off randomly while running programs or trying to print). Thanks for the tips guys and gals.

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#5
January 24, 2012 at 10:18:44
If you can't get the USB keyboard to function in the pre-Windows environment that is because the BIOS is not set to Enable legacy USB support.

Usually the solution is to boot using a PS/2 keyboard. In this case what you need is the original Dell keyboard. I don't know what is different about them but the original OEM USB keyboards can work in that environment.


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#6
January 24, 2012 at 14:36:33
Switching to a different keyboard did the trick.

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