Dell Dimension E521 Will not turn on. Very little response from computer / monitor.

Rufnacous

Honorable
Feb 4, 2014
2
0
10,510
The amber light flashes once, any devices such as headphones with LEDs flash once too and the network cable light is always on. Add-ons are as follows new graphics card and extra hard drives; both portable - all these have caused no problem for at least a year.
Edit: Also - I use Vista Home Premium, I don't know how relevant this is but I thought it may help.
 

Rufnacous

Honorable
Feb 4, 2014
2
0
10,510


I had a bit more of a look into it and the power supply was broke. I bought a new one now, but thanks for trying. :)