Power issue? Please help.

[Cocofly]

The keyboard has lit up like a xmas tree when it’s connected to my laptop. It’s a natural reaction to hit the s/lock key whenever my pc works.

[phillpower2]

Something else off the checklist then.

Last couple of things before we have to wait on a new CMOS battery.

When I switch it on it lights up inside, one of the fans on the back was happily spinning but nothing else happened.

No mention of whether or not the CPU cooling fan spins up, can you advise us on that.

Final check, have you tried the keyboard in all available USB ports on the computer, only the black USB 2.0 type ports are enabled by default on all custom MBs and the newer blue and red 3.0 and 3.1 ports need to have drivers installed before they will work.

[Cocofly]

All 5 fans inside spin up. including the CPU fan (only noticed this once I’d taken the panels off). The keyboard was in one of the blue USB ports when it was working, I’ve tried all 4 blue on the back, 2 on top and the 2 black ones on top. All with the same result, a big fat zilch.

[phillpower2]

[COLOR=rgb(226, 80, 65)]The following checks require the computer case to be opened so take the following safety precautions 1st, disconnect the power cord from the wall socket, press the case power button for twenty seconds or so to get rid of any residual charge in the system, take anti static precautions before touching anything inside, you can do this by touching a bare metal part of the case or PSU, remove the CMOS battery and leave it out for ten minutes or so.

Remove each stick of RAM and blow out the memory slots.

Insert the first stick of RAM in memory slot A2 which is the second slot away from the CPU, put the CMOS battery back in, reconnect the power cord, video port to screen cable and the keyboard.

Power up the computer and see how it goes.

The keyboard as said must be in one of the black USB 2.0 ports, this in case of either missing drivers or the USB 3.0 ports having been disabled in the BIOS due to the CMOS battery having expired.[/COLOR]

[Cocofly]

Am I connecting the monitor to the gpu or the motherboard?

[phillpower2]

The add on GPU has purposely been left out of the equation.

[Cocofly]

Ram taken out, cleaned and back in A2 where it always was, CMOS removed for 15 minutes. Keyboard in USB2.0, monitor connected to motherboard port, power back on.

Still the same, 2 soft beeps, nothing to keyboard or monitor.

[phillpower2]

Follow the standard safety checks then remove the RAM from the MB altogether, connect the video cable, power cord and the keyboard then press the power on button, if you get three beeps with the RAM removed it suggests that the RAM and the memory slot are ok and that the problem lays elsewhere.

[Cocofly]

3 repeating beeps, one long 2 short

[phillpower2]

As per my reply #23, suggests that the RAM and the memory slot are ok and that the problem lays elsewhere.

Only two things outstanding now, the new CMOS battery and trying a wired PS/2 type keyboard.

[Cocofly]

Ok, thanks so much for your help. I know it must get a bit frustrating helping out idiots.

I’ll post again once I get a new COMS and get hold of a wired PS/2 keyboard.

[phillpower2]

You are welcome and not at all, I never give up on a thread as long as the OP is still around.

Long shot, but while waiting on the CMOS battery and/or keyboard to be available you could do some additional testing, trying the RAM in the other slots and leaving the present CMOS battery out over night and then putting it back in as a couple of examples.

NB: Not been suspecting the PSU for this as it is one of the best range that Corsair have made, the proof being that even if seven years old it stlil has three years of warranty left on it.

[Cocofly]

Thanks. I’ll try the other RAM slots over the next couple of days. Unfortunately I’m in quarantine for 10 days, so can’t just pop to the store :giggle:. Hopefully I’ll have the items in a couple of days.

Again, I am extremely grateful for your help.

[phillpower2]

No problem (y)

[Cocofly]

I have tried all 4 RAM slots with the same results, nothing. I have also tried a PS/2 keyboard. The lights flickered for a split second then went off.

Still waiting for a new CMOS battery.