So I tried my other bench PSU which is 30V 5A and it seems to like this one more. There are compatible (voltage and current) ones but they don't have the weird power connector to fit the laptop Yeah the problem there is that power supply (the original type) are very expensive if I can even find one at all. I actually see the CC LED on the PSU flick very briefly and the PSU makes a relay click sound. I see the current go up to 2.93A, I get a picture on screen for a second, then I hear a funny little noise from the laptop (like a ping or blip) and it switches off, the current goes back to 0A. I tried disconnecting the battery and starting the laptop and then it does draw power from the mains. Now it seems the problems with the GTX960, which is probably related to missing Power Plans in Windows 10, is very likely related to this issue with the power supply and the fact it will only run from battery, which also does not charge fully. It then starts drawing 1.7A from the PSU again (for about 20 mins) but the interesting thing is that while it is running from battery it is drawing zero amps from the PSU like it isn't connected to the mains at all. After about 20 mins, or less if I am running some benchmark, the laptop reports the battery is low and shuts down. I can power up the laptop, with my PSU still attached and it will run for about 20 mins until the battery goes flat again (the battery is about 22% charged to start with). When I got the laptop the battery was completely flat so I connected to my PSU, set to 19V and I could see it was drawing 1.7A and the battery was charging but after 20-30 mins the current goes to zero and it won't charge any more. The original PSU is 19V 6.3A so that's close enough.

I have the laptop connected to my bench power supply because the owner can't find the original one. In the end it appears to be related to another problem I spotted - which is the following:

The GTX960m is visible in Windows and Speccy.Īt first I though this was some driver issue and opened a thread on bleeping computer. It has a built in GTX960 GPU but it does not appear to use it - it only gives 7 FPS in furmark I have this laptop here and it isn't working as expected.

Speccy power supply volt