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Re: Dimension E520 Windows 7 will not boot

Disconnect the "music" keyboard and any other USB devices and hubs except the regular mouse and keyboard.  When you power on the PC, press F12 and then run a complete diagnostic and see if anything turns up (this assumes you still have the Dell diagnostic partition).  Look closely at all of the USB ports for any bent or shorted pins as this was a reported problem on a Dimension E510 that would not boot. 

A long shot, the MIDI keyboard or controller could have caused the initial problem.  I have a Roland PCR500 MIDI keyboard but it has an updated Win 7 64 bit driver.


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Dell forum member since 2002

Dell Inspiron 15 - 5577 Laptop

Home Built Desktop PC with ASUS ROG Z170, i7 6700K CPU

Windows 10 64 bit Pro and Windows 10 Insider Program Beta Versions. SSD drives. Cakewalk by BandLab and Studio One 4.1 Recordng Studio Software.

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