GPU cooling? What do you do to keep the GPU cool?

GPU cool

This section will try to answer the most often asked questions I get.

GPU cooling? What do you do to keep the GPU cool?

I have been asked this question in the past few days quite a few times. I read what was posted by Precision Division on their eBay ads stating the BIOS files do not fix the issue, and how they modify the fan.

You have to be aware of what causes your system to fail, and what needs to be done to fix it. You have to do four main things such as update the BIOS and video drivers, exit the heat, reapply thermal paste, and change the handling.

As a repair outlet I can only do so much during the repair. Thermal compound helps greatly. Updating the BIOS and video drivers do much more for a system than hardware mods can alone. Handling has to be changed though.

I can modify the fan easily enough by clipping one wire. I suggest purchasing a laptop cooler because when it breaks and the fans die on that system it is easier to change than the weaker CPU fan that is internally in the system. As many already know, the heatsink on a DV6000, DV9000, F500, and F700 are L-shaped. Heat travels through the L-shaped heatsink to exit the system. With a weak fan exiting heat, the heat spreads through the system making the fan work harder to exit the heat. This heat remelts solder, heats your components, wears the bearings in your fan, and weakens your battery cells. Laptop cooling mats do more to move heat than the CPU fan can do on its own.

Thermal compound is key to thermal recovery. The compound absorbs the heat and causes the transfer to happen quicker. In conjunction with a chill mat, this is key to moving heat so it does not spread through the system.

BIOS and video drivers are important because they both handle how the video and system work to displace heat. The Nvidia drivers add support for games and DirectX applications, but also do more important things like bug fixes. Bug fixes can be simple problems as what the new drivers do as of 2009 which is cause the GPU to run at 10 to 20 percent power when idle. I cannot do that to as system, and neither can any other repair outlet unless they install the drivers. The BIOS update runs the fan at 5v for the complete time the system is on, but it also does another important duty: It runs the CPU at a lower GHz when it is idle the same as the video driver. This cannot be changed in the BIOS without a BIOS update.

Finally, handling is probably the single most important task. As a user you have to know your system, know the reason for the failure, and change your handling. I get calls to ask about reballing and re-stenciling with leaded solder. That will not help with anything. Heat causes solder to weaken and crack so you have to handle that issue. So handling as a user is key to continued working of a new or repaired system. As a user you have to take simple no nonsense precautions to extend the life.

Here are just a few:

Do not let your system sit on a cloth surface.

Do not block the vents.

Do not hibernate or Stand-By your system.

Turn your system off when you are not using it.

 

GPU cooling? What do you do to keep the GPU cool?

james@doubleclickittofixit.com or call 706-307-9689.

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My laptop turns on, but I see no video?

My laptop turns on, but I see no video?

This issue can be pinpointed to two separate items very quickly.

If your laptop will display a video on an external monitor, then you have a hardware issue with either your inverter or your backlight.

You can change the CCFL, which is referred to as the backlight, by disassembling your LCD screen and clipping the AC contact wires that are white and pink. New CCFL bulbs have to be soldered in after clipping. I get asked if inline butt splices will be crimped in and applied instead of soldering. With each system having different clearances, I see that as highly unlikely.

To change an inverter bar, you simply match model numbers and unplug a molex connector.

If it will not display externally, then your issue is geared more towards a BGA onboard issue. HP DV2000, DV6000, DV9000, TX1000, Dell D620, D630, D630, D820, D830 systems with Nvidia chipsets have the known BGA issues that I can fix.

Most systems need a double or triple chipset reflow.

If you are experiencing this issue and need an answer to why it happens or more detailed information on the issue:

Do you add copper shims or pennies?

What if my need is not listed?

As an electronics technician, laptops and desktops are not the only items I work on. If you have a specific need that is not listed above, please feel free to email me at

My desktop turns on, and I see no video?

This section will try to answer the most often asked questions I get.

Follow the links below for an indepth answer to each question.

My desktop turns on. I see no video?

I run into this more and more these days. Generally, you have two issues. First being your video cable. You can check that simply by seeing if it is connected, and if so connecting it to another system.

If your monitor works fine, then your next issue is the video chipset. More and more I find the newer HP, Dell, and Acer desktop systems use the same Nvidia chipsets as the laptop systems for the HP DV and TX series.

I also find that the add-on video cards, both ATI and Nvidia, have poor circulation fans if any at all, and the chipsets on those need to be reflowed also.

I also find the system may have a capacitor issue. It would display the same signs as a reflow.

To check, just take your cover off, and look at the capacitors. If they are bulging, leaking, or domed, you have a capacitor issue.

Systems that have this issue on a regular basis are Dell SX, GX, OptiPlex, and Dimension systems. I am seeing newer OptiPlex 740, which are AMD based systems, and OptiPlex 745, which are Intel based systems, with capacitor issues.

What if my need is not listed?

As an electronics technician, laptops and desktops are not the only items I work on. If you have a specific need that is not listed above, please feel free to email me at

Copper shim question – Do you add copper shims or pennies?

This section will try to answer the most often asked questions I get.

Copper shim question – Do you add copper shims or pennies?

Your issue with the onboard BGA chipset is heat related. HP DV2000, DV6000, DV9000, TX1000, Dell D620, D630, D630, D820, D830 systems with Nvidia chipsets have the known BGA issues that I can fix by reflowing them.

Now, the question above is asked to me constantly. I personally do not use copper shims.

Copper shims and pennies before 1981 do not fix your issue, but do more to hamper it.

You will have three things that can happen. These are an electrical arc, an overload, or a soldering issue.

Your chipsets on your laptop 9 out of 10 times are fine if that have not been worked with in anyway and can be reflowed properly. The chipsets have capacitors located on the top and these capacitors are actually made of ferrite. When you apply Artic Silver and the copper shim in direct contact with your chipset you have stress fractures or arcing. Heat will cause the chipset to move up and down, by design, and will cause the copper to flex causing the capacitor to complete a circuit arcing between the chipset, the shim, and the heatsink which has copper in it. Placing a plastic spacer does not help any since the heat will melt, deform, or damage the chipset in its own right.

Now your chipset may get an overload and burn it out internally with no outer signs. Usually on a DV6000 system you will see a three capacitor cluster on the motherboard overload, and burn the planing of the motherboard. Overloading will cause the chipset to pull more power in the board causing stress on other chipsets such as the MAX8774, Max8724E, and MAX8734A.

The simplest issue is that your chipset will heat and the shim causes the solder to glob or puddle on the underside of the chipset. There is a reason the CPU is 5mm and the GPU is 3mm with no need to place a copper shim in to damage that design no matter how poor it may be now or before.

For more details on helping your system not overheat please check this question:

Copper shim issues and how to fix it

What if my need is not listed?

As an electronics technician, laptops and desktops are not the only items I work on. If you have a specific need that is not isted above, please feel free to email me at james@doubleclickittofixit.com or call 706-307-9689.

copper shim

 

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Ryan Hardee DV4-1220US System Reflow Repair on CND9042Z86

James Howell
DoubleClickItToFixIt.com
7472 Nashville Street
Ringgold, GA 30736
706-307-9689

http://www.doubleclickittofixit.com

Ryan,

This email will serve as an update on the status and repair of your systems sent in.

Currently I have listed the following machines sent in for repair by you:

HP DV4-1220US with the serialization of CND9042Z86

As agreed your system is billed at $125.00 per system.

Now, with the HP DV4-1220US with the serialization of CND9042Z86 has been reflowed. The system board was labeled HP SPS 511858-001. The system reflowed on both the AMD Radeon IGP 0840 chipset.

After the reflow of the chipset, we noticed your system was not working correctly. We ran our diagnostics software on the system and found it came back with the following error. Your processor was found to be failed and damaged. The processor was exchanged, and found the new processor caused the system to display a repaired system.

Please keep in mind you need to reapply thermal compound such as Artic Silver 5. You also need to update the video drivers from Nvidia.com and the BIOS from HP if one is to be applied. Please advise your end user to purchase a cooling pad to help insure the removal of heat from the system.

If you need more help in explaining these areas to your end user, please visit http://www.doubleclickittofixit.com/tips.html

Pictures of the repair can be viewed at http://www.doubleclickittofixit.com/img

The system repair can be found here along with the explanation of how we repair systems in our shop and what we do to process the repair. The HP DV4-1220US video displays our system, repair processes, and what settings we use with our IR system to reflow your system.

Reflow and reball of PS3, Xbox 360, and laptop system boards after being fluxed and heat gun/hot air gun attempted.

Here is a new video that I produced displaying a few systems, mainly PS3 and Xbox 360, that were worked on previously by a few home users. The system boards were fluxed, hot air heated, heatsink damaged, and more issues. This video displays greatly why hot air videos on Youtube and tutorials are damaging to a system board. Now, I receive a number of emails saying “But what if I use aluminum foil wrapped around my board then ….” My answer to them is always check out this video because I was told some of these boards were wrapped in foil and heated with a shrink wrap hot air gun from Lowes.

Are reflow services all you perform and will a reflow fix a blinking jack on a… Compaq CQ50?

Are reflow services all you perform and will a reflow fix a blinking jack on a… Compaq CQ50?

I get asked this question fairly often, and the answer is no. We do not simply repair systems like the Compaq CQ50 that are affected by the Nvidia chipset issue; as a side note, the issue is not just related to Nvidia chipsets since it also affects Intel GPU based systems along with ATI GPU based systems also.

As an example we received a local drop off service for a Compaq CQ50-139WM laptop system that displayed a flashing DC jack and no power to the system.

The DC power jack blinked in a uniform fashion to indicate an error code, but error codes are not detailed by HP or Compaq for blinking DC power jacks, to our knowledge for the Compaq CQ50 or any system. The Compaq CQ50 was delivered due to the belief it required a reflow service for the chipsets since the laptop is a common system to be affected here recently with a chipset failure, but upon further inspection this system is an Intel based laptop (506519-001) with an Intel based processor (SLB6M) and Intel based GPU chipsets (SLB8Q and SLB95) which are rarely affected by reflow issues.

Usually we test the memory to verify that the memory is not dropping the voltage since the DDR2 slots are reversed in the Compaq CQ50 line of laptops, but a blinking DC power jack does not indicate a short, no power, but indicates a reset from a power rail failure, a blinking DC power jack.

Currently, we have a system with an Intel motherboard from a Compaq CQ50 laptop, a blinking or pulsing DC power jack, and memory that is not found to be failed.

Our only option is disassembly of the laptop to verify the issue from the circuit level diagnostics using our Fluke based testing equipment. We use a simple Fluke 117 RMS digital multimeter to test most motherboards in our shop. The multimeter can give you the best diagnostics for the laptop from our tests.

Compaq CQ50

One hour later, our Compaq CQ50 laptop is disassembled and is lying ready for the troubleshooting we perform. For our testing, we only use HP branded OEM power supplies. The difficulty with using a non-branded power supply from China or a Targus adapter from Walmart is that the power supplies are variable rate and variable wattage which could lead to issues with diagnostics. A variable rate power supply may not supply the correct or higher level of Amps while still supplying the correct wattage which could lead to a false positive while diagnosing your system on the bench.

Compaq CQ50

Before we even test the laptop again with power we test the power rail which is located by the DC power jack. We test the mosFET labeled U1 with a signifier of 4407 on the chip which is a known mosFET to fail in both HP DV6000 and HP DV9000 Intel based and AMD based laptop systems regularly. The chip reads 0.000 which shows our test equipment is working properly to begin. The way we test this chip is across the VCC and the Ground legs to measure the reading.

Compaq CQ50

Now we plug the DC power jack in to signify that the power supply is good and blinking. We achieve this test outright by plugging the adapter in.

Compaq CQ50

Then we move to testing the laptop system with the power adapter plugged in to the DC power jack with our Fluke 117 multimeter. The multimeter gives different readings from the same position telling us the mosFET may be damaged internally. The mosFET is a P-channel mosFET. The gates within the chip are switching on and off giving us the variable up and down ratings.

Compaq CQ50

To be absolutely sure, we have to do a thermoelectric test by using our infrared thermometer. By using our thermometer we can get a reading of the chip and if anything internally is failing within the chip. The chip specifics state the chip to be in tolerances requires a 25C rating or a 77F rating. With this we test our infrared thermometer to check the office and get a rating of 76F for our room temperature in our office.

Compaq CQ50

Then the chip after being plugged in to get a reading from the multimeter showed a rating of 86.5F

Compaq CQ50

After attaching the power adapter to the DC power jack and gathering a rating we had a reading well outside the range for failure specifying this chip is the issue with the laptop.

Compaq CQ50

Below is a video of our test displaying our findings with narration and explanation for those wanting to test or get a better understanding of the steps we took to test the unit.

Compaq CQ50 DC jack issue

Compaq CQ50

Robert Peeples HP DV6423OM System Repair on CNF723042B

James Howell
DoubleClickItToFixIt.com
7472 Nashville Street
Ringgold, GA 30736
706-307-9689

http://www.doubleclickittofixit.com

Robert,

This email will serve as an update on the status and repair of your systems sent in.

Currently I have listed the following machines sent in for repair by you:

HP DV6423OM with the serialization of CNF723042B

Now, with the HP DV6423OM with the serialization of CNF723042B has been evaluated, repaired, and is ready for return. The system is labeled HP Spare 443775-001. The system required a reflow on the Nvidia GeForce GO6150 (NF-G6150-N-A2) and Nvidia NF-430-N-A3 chipsets.

No power adapter was found within the box. A note requesting a power supply was left within the box.

No hard drive was found within your system or box. In this case, you will need to follow the directions below to finalize a successful repair.

You also need to update the video drivers from Nvidia.com and the BIOS from HP if one is to be applied once the system is repaired.. Please advise your end user to purchase a cooling pad to help insure the removal of heat from the system.

If you need more help in explaining these areas to your end user, please visit http://www.doubleclickittofixit.com/helpful-hints/

Pictures of the repair can be viewed at http://www.doubleclickittofixit.com/img

Your system was shipped without a prepaid Fedex label or account for return shipping. The system will be shipped back using Fedex COD. A check was cashed covering the repair charges.

Marc Eli HP DV6305US System Repair on CNF7190KT8

James Howell
DoubleClickItToFixIt.com
7472 Nashville Street
Ringgold, GA 30736
706-307-9689

http://www.doubleclickittofixit.com

Marc,

This email will serve as an update on the status and repair of your systems sent in.

Currently I have listed the following machines sent in for repair by you:

HP DV6305US with the serialization of CNF7190KT8

Now, with the HP DV6305US with the serialization of CNF7190KT8 has been evaluated, repaired, and is ready for return. The system is labeled HP Spare 443775-001. The system required a reflow on the Nvidia GeForce GO6150 (NF-G6150-N-A2) and Nvidia NF-430-N-A3 chipsets.

A power adapter was left with your system.

A hard drive was found within your system or box. You will not need to follow the directions below to finalize a successful repair.

You also need to update the video drivers from Nvidia.com and the BIOS from HP if one is to be applied once the system is repaired.. Please advise your end user to purchase a cooling pad to help insure the removal of heat from the system.

If you need more help in explaining these areas to your end user, please visit http://www.doubleclickittofixit.com/helpful-hints/

Pictures of the repair can be viewed at http://www.doubleclickittofixit.com/img

Your system was shipped without a prepaid Fedex label or account for return shipping. Payment will be made upon pickup from the store location.

Arthur Richardson HP DV9040US System Repair on CNF6414RLK

James Howell
DoubleClickItToFixIt.com
7472 Nashville Street
Ringgold, GA 30736
706-307-9689

http://www.doubleclickittofixit.com

Arthur,

This email will serve as an update on the status and repair of your systems sent in.

Currently I have listed the following machines sent in for repair by you:

HP DV9040US with the serialization of CNF6414RLK

Now, with the HP DV9040US with the serialization of CNF6414RLK has been reflowed. The system is labeled HP Spare 444002-001. The system required a reflow on the Nvidia GeForce GO7600 (NF-GO7600-N-A2), Intel SLA5Y, and Intel SLA5B chipsets.

A power adapter was found within the box with this system.

You also need to update the video drivers from Nvidia.com, ATI.com, and the BIOS from HP if one is to be applied. Please advise your end user to purchase a cooling pad to help insure the removal of heat from the system.

If you need more help in explaining these areas to your end user, please visit http://www.doubleclickittofixit.com/helpful-hints/

Pictures of the repair can be viewed at http://www.doubleclickittofixit.com/img if any are to be viewed.

Your system was shipped with a prepaid Fedex label or account for return shipping. A check for $125.00 was also enclosed with your shipment.

UPDATE: ANOTHER eBAY SELLER WITH A COPPER SHIM REPAIR FAILURE!!!!!

I have stated time and time again to my users why I do not use copper shims. This is a prime, grade A example of what can, will, and does happen with copper shims.

This laptop came in from an owner whom brought their laptop to me from Dalton, Georgia. A copper shim was placed on his system from a laptop repair center from the United States that he used off of eBay. I am not naming names of the offending company, but I will post the pictures.

DO NOT USE COPPER SHIMS! As the pictures display, this copper shim damaged the system. In previous examples the system displayed a damaged and cracked chipset. This system displayed a overloaded capacitor issue. This happens when the power coming in the system is modified due to the chipset not failing due to the copper shim. In short, the copper shim does not let the chipset overhead or fail then the power just amps up and causes a system failure.

This failure occured within the MosFET area labeled AO4407 and a three capacitor cluster. This failure is unrepairable due to the planing within the layers in the motherboard.

If you need your laptop fixed, check this link: http://doubleclickittofixit.com/pricing/laptop-bga-reflow/

Cornelio in Dalton, GA HP DV6629WM System Repair on CNF747218LBDV6629WM

James Howell
DoubleClickItToFixIt.com
7472 Nashville Street
Ringgold, GA 30736
706-307-9689

http://www.doubleclickittofixit.com

Cornelio,

This email will serve as an update on the status and repair of your systems sent in.

Currently I have listed the following machines sent in for repair by you:

HP DV6629WM with the serialization of CNF747218LB

Now, with the HP DV6500 with the serialization of CNF747218LB has been reflowed and is ready for return. The system is labeled HP Spare 449903-001. The system required a reflow on the Nvidia GeForce MCP67M-A2 chipset.

A power adapter was found with this system.

You also need to update the video drivers from Nvidia.com, ATI.com, and the BIOS from HP if one is to be applied. Please advise your end user to purchase a cooling pad to help insure the removal of heat from the system.

If you need more help in explaining these areas to your end user, please visit http://www.doubleclickittofixit.com/helpful-hints/

Pictures of the repair can be viewed at http://www.doubleclickittofixit.com/img if any are to be viewed.

Payment will be recovered at the time of delivery in person.