Comments on: HP laptop go-slow caused by power supply

By: MMM

MMM — Sun, 12 Feb 2012 05:28:38 +0000

Another problem with HP laptops is the battery. I just bought an used DV3000 that the previous owner was selling because it was running incredibly slow. Thankfully he included two batteries: the original one, which was spent, and the replacement one. After two days of tinkering, I finally discovered that the replacement battery, which was a cheap copy, was causing the issue. The laptop ran just fine without the battery, or with the original one installed, even if it was bad. I always try to save as much as possible in replacement parts, but in this case I’ll have to go with genuine, sigh…

By: Vivek Thomas

Vivek Thomas — Sat, 11 Feb 2012 06:42:37 +0000

Most of the time, its the connector and the tip of that cord which are causing the problem, so just order a replacement connector from eBay for like $4 and you’ll have your adapter in perfect working condition.

http://www.ebay.com/itm/260921667223

By: jay

jay — Fri, 10 Feb 2012 11:33:56 +0000

hi i have hp nx6320 laptop i purchece new battary and adapter but laptop can’t charge properly plz give me the solution

By: shaan

shaan — Thu, 26 Jan 2012 12:32:03 +0000

i have a laptop hp dv6 paviilion it is working fast when power cable is connected when i use battary backup of my laptop it is going slow anyone help me how to fix this issue

By: memin

memin — Wed, 25 Jan 2012 02:03:59 +0000

This post was awesome, it fixed the slow CPU motion. Thanks!!!

By: jlex1208

jlex1208 — Mon, 23 Jan 2012 22:53:40 +0000

I’m having the exact same symptoms, but my problem appears to be the building and not the adapter. I have an HP 6390p and when I plug the adapter in, the system speed comes to a crawl. I bought a new HP OEM (not knock-off) adapter and the same thing happens. However, unlike the problem that most have experienced, when I bring my laptop home and use it with the adapter plugged in; it works just fine. In fact, both the old and new adapters work just fine at my home and the both cause my laptop to come to a crawl at my office. Therefore, I am guessing that I have the same voltage problem, but my problem is the building and not the adapters. My first question to the community is what can I do about it? Is there a product the will raise the voltage or do I need to go through the building owner to test and and raise the level to a ‘normal’ operating level? Also in this same office, I have 4 desktops, 2 small laser printers, and an HP ML370 G6 server, plus a switch and firewall. None of these machines are having the same issue, but I’m assuming none of these have the technology that is in the ‘Smart Adapter’. My second question is that even though these other machines are not showing problems, will low voltage cause problems for these machines over the course of their expected lifespan. That is, will it burn them out faster?

By: Adrian

Adrian — Sat, 07 Jan 2012 14:30:31 +0000

Hy guys , i have a problem…. i have the same problems that u guys are talking here about, My HP Compaq 6910p goes of AC its working fine , still it isnt working on 2100 Mhz , just 1600 Mhz. I have a Core2Duo 2100Mhz; If i Plug in the AC ADAPTER the computer is goin at 1600 Mhz. I have replaced the thermal past from the processor and still same problem… Sincer this problems , it has never run at 2100 Mhz. What can i do ?

By: bbcy

bbcy — Thu, 29 Dec 2011 14:54:00 +0000

Hi,

I’m admin at a large company and one of my users had the same issue as described here. Haven’t found a solution or even a reason for this but maybe it’s still useful for someone to read this:
I can confirm it’s the power supply, I tested it with half a dozen laptops (HP 6930p with and without docking station). It’s not with the wall plug (as said in HP forums). It’s not a software issue (not Windows, Virus, etc), don’t waste your time searching for this. The CPU itself seems to be the issue, though I checked with CPU-Z and it constantly showed ~2,4GHz (always “High performance” power plan) which it wouldn’t do if throttling would kick in. But I still think it may be some kind of CPU throttle as stated by André Torres, probably CPU-Z doesn’t work properly on my specific system (we have a very customized Windows here) or it’s not the multiplicator but something else.
Note that after everything I read this is an HP-only issue (Compaq of course as well), no other laptop behaves like this even with bad power supply.

Hope this helps others not to waste time searching for defective components or reinstalling Windows

By: Alex Petit-Frere

Alex Petit-Frere — Tue, 20 Dec 2011 04:43:27 +0000

I have a Gateway M-6340u and I have been experiencing the problem of my laptop running slower when the AC adapter is plugged in as oppose to when it is not plugged in also. Some issues include my mouse on my laptop not working, my browsing becomes much slower and some of my pages never end up loading. As soon as I unplug the adapter, everything goes back to being normal. This has been happening recently But this only occurs while I am on a WiFi network because when I use an Ethernet cable using that connection instead while it is plugged in, It runs smoothly. I don’t know if the problem is with the AC adapter or the battery. I was considering buying a AC adapter but I don’t know if that would solve the problem.

By: viant

viant — Thu, 15 Dec 2011 12:20:04 +0000

Hi,

Good to see that someone has the same problem.
But you didn’t tell how to solve the problem.
Was changing a power supply help solving the problem?
Did the power supply cause the problem? or the battery? or something else??