Having problems with your HP Compaq dc7100 Ultra-slim PC Desktop ?

When trying to power on the red led light at the front of the unit is constantly flashing and will not power on, any ideas?


Answers :

According to the Compaq Service Reference Manual (http://www.manualshark.org/m/hewlett-packard-hp-compaq-dc7100-convertible-minitower-pc-hp-compaq-dx6100-and-dc7100-series-personal-computer-service-reference-card-28379/) There are several codes listed but not for a steady red LED. Try first unplugging the unit, press and hold the power button for 5 seconds to clear any residual charge in the machine. Then plug it back in, turn the power on and note the error codes. Compare the codes with those of the document link I have posted. Both the keyboard and chassis LED's will display error conditions accompanied by a series of beeps from the units speaker. It sounds as though you have a hardware failure, but until you can verify the error codes with the HP/Compaq service manual, I can't say for sure.
Possibly a BIOS problem related to hardware or configuration that is stored in the BIOS. You can fix this two ways. Either reset the CMOS manually (Google it) or an easier way is to remove the battery from the motherboard and leave out for 30 seconds or so, then put it back. That will reset the CMOS and your BIOS. I recommend only doing this powered off and power unplugged. This should fix your problem. The only other theory is you swapped RAM or changed the hardware in some way and is now in conflict with the BIOS, but a BIOS reset might also fix that as well.
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