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.

Obaid Hasan HP DV7-1264NR System Repair on Unknown

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

http://www.doubleclickittofixit.com

Obaid,

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 DV7-1264NR with the serialization of Unknown

Now, with the HP DV7-1264NR with the serialization of Unknown has been evaluated, repaired, and is ready for return. The system is labeled HP Spare 506124-001. The system required a reflow on the ATI Northbridge 0904 and Southbridge 0904 chipsets.

No power adapter was found within the box. The motherboard alone was received.

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/category/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.

Below is a video detailing the reflow step by step:

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

Steven E. Orr HP DV7-1130US System Repair on CND84038L6

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

http://www.doubleclickittofixit.com

Steven,

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 DV7-1130US with the serialization of CND84038L6

Now, with the HP DV7-1130US with the serialization of CND84038L6 has been repaired and is ready for return. The system is labeled HP Spare 486541-001. The system required a reflow on the ATI Radeon RX781 chipset. The system also displayed damaged memory in both sticks of Samsung DDR2 2GB. After replacing this RAM with a shop supplied 1GB RAM stick for testing your system displayed a booting system. The paperwork requested a virus cleaning, but the system displayed a Windows password. The password was removed to begin a virus cleaning which displayed a number of virus, malware, and Trojans within the system.

No power adapter was found within the box. Your paperwork also stated no adapter was shipped.

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/helpful-hints/

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

Your system was shipped with a prepaid Fedex label for return shipping. Since that shipping label is to be used, you will need to mail and check or money order in the below amount to finalize the transaction, and post your system at completely paid off. The services requested were a reflow in the amount of $125.00 and a virus scanning in the amount of $50.00. Since your system required extra diagnostics, the memory is billed at $65.00 per 2GB RAM stick up to 4GB as previously located within your system. Also the virus cleaning was requested, but no password was supplied so the password removal is billed at $50.00 also. Your total check should be for the amount of $355.00. You have 30 days to make this payment from the time this email is sent. Payment can be delivered to our new office at the above address.

If you have a laptop that requires a reflow, and you would like to receive a service purchasing options are listed below.










Jerry in Dalton, GA Gateway W340UI Repair Service on Unknown

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

http://www.doubleclickittofixit.com

Jerry,

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:

Gateway W340UI with the serialization of Unknown

Now, with the Gateway W340UI with the serialization of Unknown has been repaired and is ready for return. The system required a reflow on the ATI Radeon Xpress 200M and ATI IXP 400-SB400 chipsets. The chipset for the ATI Radeon is labeled RS480M.

No power adapter was found within the box. Your paperwork also stated no adapter was shipped.

You also need to update the video drivers from ATI.com and the BIOS from Gateway 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