My DELL OPTIPLEX 755 boots up but no display. Indicator 1, 3 & 4 lights up green what could be the problem?
Your video subsystem has failed. Code LEDs 1,3,4 indicate system activity preceding video initialization. If you are using an add in card, check to make sure that it is seated properly. If it still does not work after reseating then the card may have gone bad. Also check that the adapter cables are properly plugged in. Try connecting to the on-board video and see if you get any display (you will have to remove the add-in card). If you are using the on-board video then you have a failure on the board and would need to replace the motherboard. Good Luck.
What does an orange (not blinking) battery light mean on Acer Aspire laptop. Is 'green' not the right color?
I just bought an Acer Aspire One that was said to have been one of the display version in the shope. The LED status indicator lights orange for the battery status. I was expecting this to be green since my previous laptop battary status (Dell) was shown in green and only turned orange when there was problem. The light is stable and not flickering, but I'm still wondering if the orange may be an indication of problem, in case I need to return in time.
My PC case doesn't have (or maybe missing) message/power/sleep LED connector?
The PC will still work. Power LED is just an indicator. Normally, solid green LED is power ON, blinking LED is suspend/sleep mode, and off LED means power off. This LED is very helpful when you troubleshoot PC. The mother board manual should have diagram for power LED pins. Normally close to power switch and reset pins.
What do the LED's on the Razer BlackWidow mean?
I recently bought this great keyboard, but i dont know what the lights on top mean. i checked the manual but it doesnt explain. There is a C, a 1, and a S Then under a G and a M. I know when the C is on, it means caps lock, and the G means gaming mode, and M is for macro recording. What do the 1 and S mean? My 1 is constantly lit up, and i dont know how to light up the S?