Windows lags once a week or so

[QUOTE=Macboatmaster;1997141]

Edit2: Sometimes this lag has happened after turning up the brightness using the keyboard hotkeys.[/QUOTE
I do not know if personal circumstances have prevented you replying before, but there is no chance of fixing it or even diagnosing the problem, if you cannot reply to suggestions and then follow the next suggested action, on some manner of frequency other than 10 April to 17 August.

If you wish to try further it will be my pleasure to try and assist

Im very sorry for the really late reply, but I try to minimize the time I spent on my laptop as I have a 8 and 30 min job in front of the pc. Now im on holidays and I spent a little bit more time on the laptop. And the problem rarely happened. Now I must stay on battery to reduce the lag.

I think its not a software related problem becouse the laptop works fine on battery. I guess the problem might be the charger.
Its been plugged in for few hours but it just says "Plugged in" it dosen't say "Plugged in and charging".


Ran an on-board diagnostic test and got the following results

Code:

"Error message: Battery - The battery cannot provide sufficient power"

and

Code:

"The AC power adapter wattage cannot be determined.The battery may not charge.
The system will adjust the performance to match the power available."

I removed the plug from the laptop to check to voltage at first. The voltage was fine 19.5V. Probably not enough power due to bad capacitors. The ac adapter is 90w and original, but the power connector which goes to the laptop is replaced.

I plugged the laptop back and now its charging and running at full speed. Is there anything I can do other than replacing the charger?


Thanks

Last update for this thread.

Finally got a replacement cable for the charger from Aliexpress for about 1.5$. (1.2M 7.4 x 5.0 mm)

Middle pin is the one that charges the battery. If there is no voltage in the middle pin, like in my case, then replace the charger cable. Blue wire= middle pin has a intermittent contact, thats why I got the lags once in a while.

Thank you for the support! Cheers!

lolville said:

Last update for this thread.

Finally got a replacement cable for the charger from Aliexpress for about 1.5$. (1.2M 7.4 x 5.0 mm)
Middle pin is the one that charges the battery....

Not quite, it's a bit more complicated than that. For a Dell charger the center pin is actually a data connection using the 1-wire protocol. If this pin is not making contact, or its wire is broken somewhere in the lead, then the Dell laptop cannot confirm the capabilities of the charger and will refuse to charge from it.

There are two other connections in the Dell plug for the power, an outer and an inner sleeve. If these are OK then an unrecognised charger will still power the laptop, but not charge it.

Genuine Dell laptop power supplies use the 1-Wire protocol to send data via the third wire to the laptop computer about power, current and voltage ratings. The laptop will then refuse charging if the adapter does not meet requirements.[3]

1-Wire - Wikipedia

W10 Tweaker said:

Well, that's a most fascinating fact and likely explains much of my charging grief on an old Dell Studio laptop. Now I'm interested to investigate further.

Have you ever managed to crack open a Dell charger brick leaving few enough pieces to allow re-assembly?

No, fortunately I've not needed to.

I found out about all this when I bought a 2nd hand Dell Lattitude and it came with an HP charger rather than a Dell. HP use the same three wire plug and voltages as Dell, but the center pin ID data was not recognised by the Dell. Googling discovered what the center pin was for, and a call to the seller got a Dell charger posted to me.

All my genuine Dell chargers are fully functional. But there is a 'How To' guide here:

Hacking Dell Laptop Charger Identification | Hackaday