Optiplex 780 SFF no POST
- 
 
- 
 Is your issue absolutely identical? What do the beep codes tell you? 
- 
 What is the warranty situation? Expired, I am guessing? 
- 
 @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video. 
- 
 @reid-cooper expired 
- 
 @danno said in Optiplex 780 SFF no POST: @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video. Sounds like the memory or memory controller might be burned out. Do you have another machine with any memory that can be swapped in to test? 
- 
 @danno said in Optiplex 780 SFF no POST: @reid-cooper expired That's too bad, was worth checking, though. 
- 
 Not sure which generation you have, but here is a link to all the light codes and beep codes: 
- 
 @danno said in Optiplex 780 SFF no POST: @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video. What are the beeps that you do get when the memory is removed? 
- 
  I'm guessing the graphics card is integrated on an SFF. 
- 
 @rojoloco Yes, it is integrated. I don't have a pci express to test, but I am not sure if it will post anyway with the video error. 
- 
 Reseat the minimum amount of memory, see what it does. 
- 
 @reid-cooper 122 
- 
 
- 
 @scottalanmiller Tried that. Also cleared cmos. No change. Still black screen, high fan speed, solid green power light, and indicator 2 and 4 lit. 
- 
 Do you have anything plugged into that box that could be removed? Any extra cards, USB or anything like that? If so, remove them. If not, likely the mobo is dead. 
- 
 @reid-cooper Nothing else plugged in. 
- 
 I think that likely the desktop is just dead, then. unless you can acquire a replacement motherboard, of course. 
- 
 @reid-cooper I tend to agree. I will look for something. 
- 
 Probably worth retiring that box. How old is it? 


