Question about HP Pavilion dv2000t Notebook
Power light is on. Wick light is on. Caps lock light is blinking. But the computer does not get past the black screen
Posted by Anonymous on
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Posted on Jan 02, 2017
Compaq and Hp are having issues with several models, My wife just got hers repaired free out of warranty. Go to copaqs website, look up your model and see if it is one they are offering free one time repairs on. Wife's computer was doing same thing, they replaced the motherboard. Took about 2 weeks round trip . Good luck
Posted on Feb 02, 2009
It may be a hardware error. Call HP and see about your warranty.
A lot of HP's new laptops have hardware defects, which could happen at any time from the day you buy it. Have it sent in and have it repaired for free.
Posted on Jan 24, 2010
Try hooking the laptop to a desktop monitor. This will verify what is failing. If all works, then you have a bad LCD screen. If you get the same problem, you have a motherboard problem which is probably not worth fixing.
Posted on Sep 08, 2010
SOURCE: my compaq presario cq40 is
Please get and test your Display chipset this causes that problem as you walkthrough the steps of how BIOS works. It stops from the execution of the program written to test the functionality of the output which is your DISPLAY or LCD screen or PRN.
This might cost you around RM200 bucks.
Posted on Aug 26, 2011
When the Caps Lock flashes, it is then being used in a diagnostic mode. 5 times flashing means a problem with the System Board.
I don't doubt it.
Two common problems, all based on one issue.
1) Problem One;
The Processor, and the GPU are the two hardware components that produce the most heat.
[ GPU = Graphics Processing Unit. Slang? Graphics chipset,
Chip and Chipset are slang terms for I.C.
It could be something as simple as foam has melted, and melted down onto the motherboard, near the Processor socket. Removal puts the laptop back into service again.
It could be much more complicated, and follow an issue that has beleaguered the HP Pavilion dv2000 series, dv6000 series, and dv9000 series.
The cooling system for the GPU is inefficient. Allows the GPU to overheat.
Constant overheating partially melts the solder connections of the GPU to the motherboard.
The graphics chipset (GPU) is mounted to the motherboard with a BGA surface mount.
Ball Grid Array,
To explain the BGA surface mount;
Compare to an older Intel Pentium 4 processor, and it's Socket 478 processor socket,
The processor has contact pins on the bottom. (478 of 'em) These line up with matching socket holes in the Socket 478 processor socket. (478)
With a BGA surface mount there are no contact pins, nor socket holes.
Solder Balls take the place of the contact pins, and Copper Pads take the place of the socket holes.
The graphics chipset's Solder Balls, are lined up with the matching Copper Pads on the motherboard.
Heat is then applied at a specific temperature, and length of time.
This procedure melts the Solder Balls, and solders the graphics chipset to the Copper Pads.
With constant overheating the solder connections that were created, start to melt. This creates a poor connection.
The professional method to repair this problem, is to use a BGA Rework Machine, to Properly re-solder the connections.
Due to the location of repair shops that have a BGA Rework Machine, and the C-O-S-T, many are attempting to perform the procedure with a non-professional method.
A thin metal shield is cutout in the middle, for the graphics chipset. This shield is set over the graphics chipset, and lays on the motherboard. Heat is then kept just to the graphics chipset, and the other components on the motherboard are protected.
Heat is applied with a propane torch, or a hot air gun, (Not hair dryer), in a circular (Spiral), pattern to the graphics chipset. With a more proper method used, the tip of a thermometer that can read this heat range, is laid on the chipset, and is used to keep the chipset at a specific temperature.
(Too much heat will burn up the chipset. Too little will not properly remelt the solder connections. A Cold Solder joint, or joints, will result)
The heat from the heating instrument, (Propane Torch/Hot Air Gun), is rotated around in a spiral pattern on the chipset. Constant moving around to distribute the heat evenly.
(You do not want a 'hot spot')
When the specific heat range is met, the heating instrument is slowly moved away from the chipset.
Move up an inch or so, keep spiraling. Then move up another inch or so, and keep spiraling the heat source. Slowly move up in increments while spiraling. S-L-O-W-L-Y back away. Method is used so that the chipset slowly cools down. Otherwise a cold solder joint, or joints, could result.
(Right back to where you started)
This link is to a video that shows one style of the procedure. It is not an advertisement for the video, just linked for the procedure information,
For additional questions please post in a Comment.
Posted on Nov 12, 2011
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