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09-29-2009 04:55 AM
I have the same problem using a 90W replacement/travel adapter.
It came to my attention that the power output on the 3 outlet points isn't correct,
i measured 2 times ~19v and on the middle pin ~7v
The original 120W adapter deliveres ~19v on all 3 connect points
02-22-2010 08:51 PM
I know this is old, but I had the same problem and a search led me to this thread. I ran some diagnostic tools and was told my battery has failed. I may have two separate problems, but more than likely they're related. It may have seemed like it was your power cord that caused the problems, but more than likely it was the battery.
02-23-2010 09:53 AM
I'll tell you what...
I'm on my sixth or seventh power supply now. Thankfully my company bought an extended warantee on this laptop and I can easily get replacement power supplies. While speaking to my recource manager, I have found that I am not the only one having problems. She's had to fulfill a lot of power cord replacement requests for this HP model. It's a shame since I really love the laptop, but there's not much I can do about it.
12-07-2010 05:10 AM
I am having exactly the same problem at the moment. The local dealer has either no idea or is doing his usual "it'll take a couple of days & cost a couple of hundred" effort.
My power supply stopped working all together, so I'm using one from an old Compaq This doesn't seem to be charging the battery much (10%) even though it's the same voltage and watts (18/90)
whenever I unplug the lead and run it on the battery, everything's fine. But as soon as the lead's plugged back in; slow city.
Any ideas would be welcomed.
03-08-2011 09:25 AM
I have not had this problem yet. I have an 8510p. I did damage my power supply by setting something on the DC cable from the power supply. I assumed this would just be a two conductor cable, with maybe shielding. Much to my surprise there is only one small (24 AWG) center conductor. There are two full braded copper shields. These are all separated by insulation, but my suspicion is that this cable probably has a very large minimum bend radius, and very easily damaged, which may be the reason for going through so many power supplies and causing these problems. One might try taking better care of the DC cable side.
06-13-2013 11:32 AM
Your post has been moved to Notebook Hardware.