HP dv9000 Power Up.... NOT!!!

phlyx · 04-28-2008, 12:31 PM

A family friend was having problems with their fairly new HP Pavillion
dv9000 (P/N EZ458UA#ABA with Windows XP Media Center Ed 2005) and
asked if I'd take a look at it. Regardless of running on battery, or
from AC supply, or AC supply with battery removed, when you push the
power button all the blue display lights blip on for a fraction of a
second and then turn off and the laptop does nothing at all. No drives
spin up. Nothing on the display. Nothing. If you let go of the button
and re-press it, it does the same thing again.

The unit has no external damage and they stated this problem just
started out of the blue.

Any reset or something or is this pretty much power supply being
toast? And in case it is the power supply, how hard is it to replace it (this thing is out of warrantee I believe)?

Any and all help greatly appreciated.

**TriggerFinger** · 04-28-2008, 12:42 PM

hi phlyx,

Welcome to the forum

so in short (hmm, sounds like it has a short indeed

), it immediately shuts off when you power it ON, am i correct?

i am assuming now that you are using the original AC adapter and not any other AC adapter.

phlyx · 04-29-2008, 06:27 AM

Quote:

Originally Posted by TriggerFinger

Welcome to the forum

Glad to be on board (and even more glad if I can get this thing fixed

)

Quote:

Originally Posted by TriggerFinger

so in short (hmm, sounds like it has a short indeed

), it immediately shuts off when you power it ON, am i correct? i am assuming now that you are using the original AC adapter and not any other AC adapter.

When the unit is plugged in (with the original AC power supply and cords), there is a blue light on at the plug input and I believe one on at the front of the case. When I depress (and hold) the power button, all the blue indiciator lights above the keyboard near the display flash on for part of a second and turn off and the unit just sits and does nothing. I even tried holding the power button down for a long time and the only result I got was a sore finger

Any hints?

**TriggerFinger** · 04-29-2008, 09:39 AM

i suggest you strip it down to just RAM. i mean, remove all external devices and remove the HDD, CDdrive, WiFi card, modem card if accessible. leave the RAM in place or if you can use a spare RAM stick the better.

if you get a power ON, connect each of the removed devices one at a time starting with the original RAM, then the modem, then WiFi card, etc.. while powering the laptop ON each time you plug in a device.

if symptoms persist after stripping it down, replace the RAM if not yet done and power ON again. otherwise consider a motherboard replacement.

phlyx · 05-05-2008, 10:03 AM

Did everything you stated except removing the DVD drive and it still does the same thing. Push the power button, a flash of blue lights above the keyboard and then off and no activity at all.

Motherboard? And if so, how hard is it to swap it out?

**TriggerFinger** · 05-05-2008, 10:22 AM

replace the RAM if you have not done so yet.

phlyx · 05-06-2008, 06:17 AM

Quote:

Originally Posted by TriggerFinger

replace the RAM if you have not done so yet.

Don't have RAM to replace existing with but even removing the RAM didn't change the response. I thought booting without RAM would get me an error or beeping or something but only does the same thing. A flash of the display lights and then nothing.

**TriggerFinger** · 05-06-2008, 10:31 AM

Quote:

Originally Posted by phlyx

Don't have RAM to replace existing with but even removing the RAM didn't change the response. I thought booting without RAM would get me an error or beeping or something but only does the same thing. A flash of the display lights and then nothing.

booting without RAM will give you some beeps but no screen, will attempt to boot but shuts down immediately.

phlyx · 05-07-2008, 06:55 AM

Quote:

Originally Posted by TriggerFinger

booting without RAM will give you some beeps but no screen, will attempt to boot but shuts down immediately.

No difference in how it boots with or without RAM. No beeps either. And removed the DVD drive and still no difference.

**TriggerFinger** · 05-07-2008, 10:52 AM

hi phlyx,

if you get nothing (not even a beep at start up), it could be the motherboard. replacing it is not so difficult if you have the HP DV9000 service manual to guide you.

Joe2Shoe · 01-22-2009, 08:07 PM

I have a dv9000z and just replaced the Heatsink/Fan Assembly because the CPU cooling fan was roaring.
I had to remove the motherboard to remove the Fan.
You have to take the laptop completely apart. It took me 4 hours to take it apart. And another 4 hours to put it back together again.
Download the Service Manual from HP's site and follow the directions for removing/replacing the motherboard.
It takes lots of patience. Just be careful and take it slow. Double-check everything as you are putting it back together.
Good luck.
Joe2Shoe.

cyberwip · 05-15-2009, 10:55 PM

I had same problem and it IS the motherboard.

Looks like their crowbar circuitry is failing.
You can tell it's a short by listening to the adapter as you plug it in and noticing a distinct increase in pitch.

This is a replacement motherboard HP gave me because the first one was defective. I hope they'll do it again.

I would kind of like my laptop at hope more than in for service.

TheLaptopXpert · 11-22-2009, 10:54 AM

HOW TO FIX YOUR DV6000/DV9000/DV2000

All the Problems described in the previous posts are Graphics Related..
Faulty Nvidia Chip..Both Intel And AMD Based Motherboards..Though More Common on the AMD..

The symptoms of the Laptop Powering on and Shutting Off Repeatedly..Or.. Powering On and Having No Video...Or... Power Strip Lights Up, Beeps,Shuts Down...Or..No Power At All...Or.. Intermittant Loss Of Wireless/Video Goes In And Out/Touchpad Slows and Freezes..

To Fix this issue, You will need to Reflow The Graphics Chip.

I will Explain In Full Detail As To The Correct Method Below....

HP DV6000/DV2000/DV9000 Compaq v2000 Video Chip Reflow Instructions

First Step Is Complete Disassembly Of All Parts And Components..
Remove RAM, Remove CPU, Of Course Remove Heatsink and Fan assembly.

Next Step is Insulating the Motherboard... You need to Protect The CPU area, The RAM area, Cover any plastic Plug ports.

Try to leave 1/4 inch area around the edge of the chip free of insulation.

To Insulate the Board.. I use thick pieces of Tin/Aluminum, you can fold up some aluminum foil (tin foil) About 4 folds thickness....

Now that you have your Motherboard Insulated... Make Sure There's Nothing Flamable Or Burnable Below the Motherboard... it will get quite hot underneath.

You will need a Heat Gun.. You can get one of these at your Local Home Improvement Store, they cost about $15 - $30.. You Will Use ONLY the LOW Heat Setting... I REPEAT..... USE ONLY THE LOW HEAT SETTING ....

Next You Will Need Some Coins.. Yes Coins..
8 Quarters and 2 Nickels... Put the 2 Nickels On the Bottom and Stack Quarters On Top...
Place The Stack Of 2 Nickels And 8 Quarters On Top Of The Graphics Chip...

The Reason for using the Coins: Using the coins serves a few purposes...
1) It Helps Transfers the heat Into The Chip More Evenly/Slowly
2) It Helps Hold The Heat Longer/Then Helps To Cool Slower
3) It Gives The Correct Amount Of Weight That Is Needed To Press The Chip

A Thing To Look Out For...

Hewlett Packard is nutorious for using the RED epoxy around the edge of the Graphics chip.. this epoxy is used to help secure the chip to the motherboard...
This is a process that is Hand Done at the Factory.. And Some Boards Will Have Only A Little Amount of this, Some Will Have Alot of it...And Some are Only Done On The Corner Edges....

If There Is Alot of This On Your Chip, You Might End Up Needing To Carefully (REAL CAREFULLY) Remove as much of this epoxy as able to....You can use a Razor Blade To Lightly Scrape This Off... DO NOT MISS AND SCRATCH THE MOTHERBOARD!!! Go SLOW...

Now Comes The Heating Of The Chip...

Start With The Heat Gun About 6 Inches Away From The Top Of The Quarter Stack..You want to be holding the gun at a 45% angle.. Aim the heat at the Edge of the chip, You Will Start Rotating Around the Chip- around the outer edge of the chip...then use tighter circles concentrating on the quarter stack, then after about 30-40 seconds, slowly move closer to the chip...
Never Move the Heat Gun Closer than the Top Of Your Coin Stack...Then Pull It Back And Slowly Repeat.. The Chip Needs To Get Hot Enough To Re-Melt The Solder Balls On The Underside Of The Graphics Chip Back Down To The Contact Pads On the Motherboard.. and this takes Quite Alot of heating to Do.... You Must Not OVERHEAT the CHip... It Is Best To Underheat it and have to Redo.. than to overheat.. It will cause the solder to break down and even crack/split.. causing failure forever...
This process will take about 3 minutes total.. Once you shut off the Heat Gun.. Leave The Stack of Coins On The Chip And Let Sit For Another 5 minutes..

Now Remove The Coins(carefull they might still be hot)
Remove All Insulation.. Reinstall RAM, CPU, Heatsink and FAN Assembly (and Of Course Thermal Pads or Paste.. Note:. If Paste Is Used.. It Must Be Silver Paste...

Now You Can Connect The Power Button Strip/ Video Cable And The DC Jack Cable.... And Plug In AC adapter .. You're Now Ready To Test For Solid Power and Video....

04-28-2008, 12:31 PM	#1 (permalink)
phlyx Registered User Join Date: Apr 2008 Posts: 5 OS: XP	HP dv9000 Power Up.... NOT!!! A family friend was having problems with their fairly new HP Pavillion dv9000 (P/N EZ458UA#ABA with Windows XP Media Center Ed 2005) and asked if I'd take a look at it. Regardless of running on battery, or from AC supply, or AC supply with battery removed, when you push the power button all the blue display lights blip on for a fraction of a second and then turn off and the laptop does nothing at all. No drives spin up. Nothing on the display. Nothing. If you let go of the button and re-press it, it does the same thing again. The unit has no external damage and they stated this problem just started out of the blue. Any reset or something or is this pretty much power supply being toast? And in case it is the power supply, how hard is it to replace it (this thing is out of warrantee I believe)? Any and all help greatly appreciated.

04-28-2008, 12:42 PM	#2 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: USA Posts: 11,826 OS: Vista SP1, XP SP3, PCLinuxOS2007	Re: HP dv9000 Power Up.... NOT!!! hi phlyx, Welcome to the forum so in short (hmm, sounds like it has a short indeed ), it immediately shuts off when you power it ON, am i correct? i am assuming now that you are using the original AC adapter and not any other AC adapter. __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Disk Copy HOW TO BURN AN ISO FILE Last edited by TriggerFinger; 04-28-2008 at 12:44 PM.

04-29-2008, 09:39 AM	#4 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: USA Posts: 11,826 OS: Vista SP1, XP SP3, PCLinuxOS2007	Re: HP dv9000 Power Up.... NOT!!! i suggest you strip it down to just RAM. i mean, remove all external devices and remove the HDD, CDdrive, WiFi card, modem card if accessible. leave the RAM in place or if you can use a spare RAM stick the better. if you get a power ON, connect each of the removed devices one at a time starting with the original RAM, then the modem, then WiFi card, etc.. while powering the laptop ON each time you plug in a device. if symptoms persist after stripping it down, replace the RAM if not yet done and power ON again. otherwise consider a motherboard replacement. __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Disk Copy HOW TO BURN AN ISO FILE

05-05-2008, 10:03 AM	#5 (permalink)
phlyx Registered User Join Date: Apr 2008 Posts: 5 OS: XP	Re: HP dv9000 Power Up.... NOT!!! Did everything you stated except removing the DVD drive and it still does the same thing. Push the power button, a flash of blue lights above the keyboard and then off and no activity at all. Motherboard? And if so, how hard is it to swap it out?

05-05-2008, 10:22 AM	#6 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: USA Posts: 11,826 OS: Vista SP1, XP SP3, PCLinuxOS2007	Re: HP dv9000 Power Up.... NOT!!! replace the RAM if you have not done so yet. __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Disk Copy HOW TO BURN AN ISO FILE

05-07-2008, 10:52 AM	#10 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: USA Posts: 11,826 OS: Vista SP1, XP SP3, PCLinuxOS2007	Re: HP dv9000 Power Up.... NOT!!! hi phlyx, if you get nothing (not even a beep at start up), it could be the motherboard. replacing it is not so difficult if you have the HP DV9000 service manual to guide you. __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Disk Copy HOW TO BURN AN ISO FILE

01-22-2009, 08:07 PM	#11 (permalink)
Joe2Shoe Registered User Join Date: Jan 2009 Posts: 22 OS: linux	Re: HP dv9000 Power Up.... NOT!!! I have a dv9000z and just replaced the Heatsink/Fan Assembly because the CPU cooling fan was roaring. I had to remove the motherboard to remove the Fan. You have to take the laptop completely apart. It took me 4 hours to take it apart. And another 4 hours to put it back together again. Download the Service Manual from HP's site and follow the directions for removing/replacing the motherboard. It takes lots of patience. Just be careful and take it slow. Double-check everything as you are putting it back together. Good luck. Joe2Shoe.

05-15-2009, 10:55 PM	#12 (permalink)
cyberwip Registered User Join Date: May 2009 Posts: 2 OS: xp	Re: HP dv9000 Power Up.... NOT!!! I had same problem and it IS the motherboard. Looks like their crowbar circuitry is failing. You can tell it's a short by listening to the adapter as you plug it in and noticing a distinct increase in pitch. This is a replacement motherboard HP gave me because the first one was defective. I hope they'll do it again. I would kind of like my laptop at hope more than in for service.

11-22-2009, 10:54 AM	#13 (permalink)
TheLaptopXpert Registered User Join Date: Nov 2009 Posts: 3 OS: Windows 7	Re: HP dv9000 Power Up.... NOT!!! HOW TO FIX YOUR DV6000/DV9000/DV2000 All the Problems described in the previous posts are Graphics Related.. Faulty Nvidia Chip..Both Intel And AMD Based Motherboards..Though More Common on the AMD.. The symptoms of the Laptop Powering on and Shutting Off Repeatedly..Or.. Powering On and Having No Video...Or... Power Strip Lights Up, Beeps,Shuts Down...Or..No Power At All...Or.. Intermittant Loss Of Wireless/Video Goes In And Out/Touchpad Slows and Freezes.. To Fix this issue, You will need to Reflow The Graphics Chip. I will Explain In Full Detail As To The Correct Method Below.... HP DV6000/DV2000/DV9000 Compaq v2000 Video Chip Reflow Instructions First Step Is Complete Disassembly Of All Parts And Components.. Remove RAM, Remove CPU, Of Course Remove Heatsink and Fan assembly. Next Step is Insulating the Motherboard... You need to Protect The CPU area, The RAM area, Cover any plastic Plug ports. Try to leave 1/4 inch area around the edge of the chip free of insulation. To Insulate the Board.. I use thick pieces of Tin/Aluminum, you can fold up some aluminum foil (tin foil) About 4 folds thickness.... Now that you have your Motherboard Insulated... Make Sure There's Nothing Flamable Or Burnable Below the Motherboard... it will get quite hot underneath. You will need a Heat Gun.. You can get one of these at your Local Home Improvement Store, they cost about $15 - $30.. You Will Use ONLY the LOW Heat Setting... I REPEAT..... USE ONLY THE LOW HEAT SETTING .... Next You Will Need Some Coins.. Yes Coins.. 8 Quarters and 2 Nickels... Put the 2 Nickels On the Bottom and Stack Quarters On Top... Place The Stack Of 2 Nickels And 8 Quarters On Top Of The Graphics Chip... The Reason for using the Coins: Using the coins serves a few purposes... 1) It Helps Transfers the heat Into The Chip More Evenly/Slowly 2) It Helps Hold The Heat Longer/Then Helps To Cool Slower 3) It Gives The Correct Amount Of Weight That Is Needed To Press The Chip A Thing To Look Out For... Hewlett Packard is nutorious for using the RED epoxy around the edge of the Graphics chip.. this epoxy is used to help secure the chip to the motherboard... This is a process that is Hand Done at the Factory.. And Some Boards Will Have Only A Little Amount of this, Some Will Have Alot of it...And Some are Only Done On The Corner Edges.... If There Is Alot of This On Your Chip, You Might End Up Needing To Carefully (REAL CAREFULLY) Remove as much of this epoxy as able to....You can use a Razor Blade To Lightly Scrape This Off... DO NOT MISS AND SCRATCH THE MOTHERBOARD!!! Go SLOW... Now Comes The Heating Of The Chip... Start With The Heat Gun About 6 Inches Away From The Top Of The Quarter Stack..You want to be holding the gun at a 45% angle.. Aim the heat at the Edge of the chip, You Will Start Rotating Around the Chip- around the outer edge of the chip...then use tighter circles concentrating on the quarter stack, then after about 30-40 seconds, slowly move closer to the chip... Never Move the Heat Gun Closer than the Top Of Your Coin Stack...Then Pull It Back And Slowly Repeat.. The Chip Needs To Get Hot Enough To Re-Melt The Solder Balls On The Underside Of The Graphics Chip Back Down To The Contact Pads On the Motherboard.. and this takes Quite Alot of heating to Do.... You Must Not OVERHEAT the CHip... It Is Best To Underheat it and have to Redo.. than to overheat.. It will cause the solder to break down and even crack/split.. causing failure forever... This process will take about 3 minutes total.. Once you shut off the Heat Gun.. Leave The Stack of Coins On The Chip And Let Sit For Another 5 minutes.. Now Remove The Coins(carefull they might still be hot) Remove All Insulation.. Reinstall RAM, CPU, Heatsink and FAN Assembly (and Of Course Thermal Pads or Paste.. Note:. If Paste Is Used.. It Must Be Silver Paste... Now You Can Connect The Power Button Strip/ Video Cable And The DC Jack Cable.... And Plug In AC adapter .. You're Now Ready To Test For Solid Power and Video....