I received my DELL XPS9000 desktop exactly one month ago. In the first week, the hard drive failed. So Dell sent a technician replaced the hard drive.

Last week, the card reader will not read SD card. I found there is an "Unknow Device" under Universal Serial Bus Controllers of computer Device Manager. I got following result after runing DELL self-diagnostic - "Test Results:Device Initialization Error, Error Code 5D00:0009, Msg: UUTUSBTM - DEVICE_INITIALIZATION_FAILURE User must reattach unit on ROOT HUB port 3 and re-start test".

Contacted DELL XPS tech support. The agent couldn't resolve the problem after installing several drivers. So he will schedule to send a technician to replace the card reader.

It seems that I am not alone with this issue. I am wondering if there is system design flaw with this lovely computer.