I press the power button. The caps lock, number lock, and scroll lock lights hold for about 6 seconds, while the hard drive light flashes randomly. Then the hdd light stops and the bluetooth light comes on and stays. The power light is on the whole time. System hangs from there. I've tried this on only battery power and only wall power. I've removed bottom ram and tried, but I've heard there may be a stick under the keyboard. I've also tried this with no hard drive, and tried to boot to a dell windows 7 disc. Before this problem started, while using the laptop, it would occasionally get a black screen, flash sporadically, then stabilize, and windows would tell me the video driver has recovered.
Your D620 probably has the Nvidia Graphics (Video) card that was a manufacturing defect well documented all over the internet. I have reflowed the video card on quite a few of these laptops.
Below are some excerpts from the user manual.
Solid green power light and no beep code and no video during POST
The monitor or the graphics card may be faulty or incorrectly installed.
Check the diagnostic lights to see if the specific problem is identified. See "Video and Monitor Problems."
i know the error said it was an nvidia driver. so youre saying i either need to take the video card out and reflow it, or get a new video card?
No you don't want to take it out because it is soldered onto the mother board. What you want to do is take the laptop apart to get to the motherboard and take the motherboard out. Then wrap the motherboard in some aluminum foil leaving the video card exposed. Then take a hair dryer (I use a hot shrink wrap gun) and put it on high and sweep across and around the video card for a minute or two. Then take a pencil with an eraser and push on the video card around the edges and in the middle with the eraser end. Repeat the steps another time or two. Then remove the foil and let it cool off before putting it back into the computer. It works more times than not.
wow that is a lot of trouble. thanks for help.
LOL, ok, don't look at it as being a lot of trouble. Look at it as saving yourself $300 - $500 if you took it to a shop and let dell do it. Just get some cups and label them with the screws you take out so you will know where they go. A digital camera will be helpful too. Actually the D620 is simple to break down and put back together. But the first time you do one it will take a little while to get used to it.
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Seriously? Just get some cups.............
Kingsyco369,
1) The graphics chipset on your motherboard is Integrated. Meaning it is soldered to the motherboard, and not a removable graphics adapter card.
[ It is also Integrated Graphics, because it borrows from the system resources. The Processor and Ram Memory ]
There are no pins on the bottom of the graphics chipset, and no socket on the motherboard.
Compare to an older Intel Pentium 4 processor that uses a Socket 478 processor socket,
Socket 478,
http://en.wikipedia.org/wiki/Socket_478
The circuit board of the processor has contact pins on the bottom.
478 of 'em.
The processor socket has matching socket holes. (478)
The Latitude D620's graphics chipset has no contact pins on the bottom, nor is there a socket on the motherboard with socket holes.
The graphics chipset is mounted to the motherboard with a BGA surface mount. Ball Grid Array,
http://en.wikipedia.org/wiki/Ball_grid_array
In place of the contact pins there are Solder Balls, on the bottom of the graphics chipset.
In place of the socket holes ,there are Copper Pads, on the motherboard. (Copper pads are also gold plated, just like the contact pins of a Ram Memory module )
The graphics chipset is set on the motherboard, with the Solder Balls lining up with the matching Copper Pads.
Heat is then applied at a specific temperature, and length of time.
This action melts the solder balls, and solders the graphics chipset TO the copper pads. (Which in turn solders the graphics chipset TO the motherboard)
The Latitude D620 has inadequate cooling for the graphics chipset.
This allows the graphics chipset to overheat.
After time the solder connections that were made begin to soften.
Laptop turned off, the graphics chipset cools down.
Partial melting of the solder joints (Connections), and then rehardening after the chipset cools, leads to cold solder joints.
This creates a poor contact of graphics chipset to the motherboard, and what you are experiencing now.
By the statement - Reflow -, what is happening is the solder joints are reheated. They melt, and then solidify creating good solder joints once more.
PROPER method is to use a BGA Rework Machine. Not something most computer repair shops have. This is done at the depot level. Meaning back at the factory. (Naa, they just send it out to a place that does it, really)
The following is JUST for reference, and not advertising. Want you to see more of what is going on, and a look at a BGA Rework Machine.
(Probably this one,
http://www.ersa.com/art-ir-pl-650-346-1472.html )
http://www.laptoprepairfix.co.uk/dell-repair/dell-latitude-d620-lcd-screen-graphics-chip-repair.htm
Click on the video. The graphics chipset is in the 'head' of the machine, at the top. The motherboard is below.
(Not pins on the motherboard. They are copper pads)
Using the method stated by Milt can work. How long? Depends on the person doing the job, for one
.
However you have to ask yourself. Why does the graphics chipset overheat? If the graphics chipset is reflowed, and the graphics chipset constantly overheats again, won't you be right back to where you were?
Answer? YES.
The cooling system for the Latitude D620 consists of;
1) Cooling Tube:
Slightly flattened copper tube sealed on both ends, and filled with Nitrogen.
At one end there is a small rectangular shaped plate. This plate sits on top of the graphics chipset.
Coming up the Cooling tube a little, there is an aluminum X-shaped plate. This plate sits on top of the Processor.
On the other end of the Cooling Tube a Heatsink is mounted.
2) The Heatsink is a thin small piece of metal with Tall, Thin, fins protruding from it. It is rectangular shaped.
3) Fan Assembly:
Fan inside a shroud. (Surrounding cage)
The Cooling Tube absorbs heat from the Processor, and graphics chipset, through the two metal plates mounted to it.
The heat is then transferred up the Cooling Tube to the Heatsink.
The Heatsink absorbs the heat, then radiates it away with the tall, thin fins.
Air flow from the Fan Assembly, helps carry heat away from the Heatsink's fins.
http://it.pickensit.com/Service%20Manuals/Dell%20Latitude%20D620/thermal.htm
The small metal plate sitting on top of the graphics chipset, is inadequate.
The surface area is too small. Needs to be largerr.
This is one method a tech came up with for HP Pavilion dv2000 series, dv6000 series, and dv9000 series Notebook PC's. (Plus a lot of other laptops that have this problem. Again, NOT an advertisement ),
http://www.youtube.com/watch?v=JEpnqhRYGLw
(I do not concur with the method shown. In his defense though he states using a BGA Rework Machine is the best method. Click on - Show more )
More to follow in a Comment.
Regards,
joecoolvette
Dell Support > Latitude D620 Notebook PC > Service Manual,
http://support.dell.com/support/edocs/sy...
ALSO,
1) Buy, and wear an ESD wrist strap. Connect it's alligator clip to a good ground source.
(I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case. Feel an Anti-Static mat is unwarranted )
Average price is around $3 to $6. One example,
http://www.radioshack.com/product/index....
2) Use a multi-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.
SOME screws look VERY similar to other screws.
Advise DO NOT mix them up!
3) Make a record as you disassemble. Nice to have the Service Manual, but better to also have your own personal guide.
Especially if it's your first time.
Make notes, and drawings. Use a digital camera, or video camera, if available.
(Use GOOD lighting. Make legible notes)
4) Have questions? Post in a Comment. I'm right here.
Regards,
joecoolvette
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SOURCE: Dell D600 latitude will not power up
you can try to replace the motherboard, which is apparently totally UnHappy
SOURCE: Dell Latitude D610 won't start. Caps Lock flashes a few times.
Hi,
http://support.dell.com/support/topics/global.aspx/support/dsn/en/tree?c=us&cs=28&l=en&s=dfb&journalid=656DBBED5AFCEABBE040AE0AB8E17A47&treeid=084A4C3E0A9C9EEEE0401E0A55172321&Query=bm8rcG9zdA==&SystemID=LAT_PNT_PM_D610&ServiceTag=&contenttype=-1&os=-1&component=-1&lang=-1&doclang=en&toggle=true&dl=
Follow Each and Every Step. To get Exact Resolution.
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SOURCE: dell inspiron 1501, caps lock and scroll lock
i cant if my mute botton it all was say mute of and i cant hear anything
SOURCE: dell latitude d620 once i turn on power the power
Is the laptop really turning itself off, or is the display just not doing anything?
It sounds like it could be a problem with the nVidia GPU used on the D620.
Dell has extended the warranty on the nVidia GPUs by 1 year. Call Dell and describe the problem.
See also: Dell and nVidia GPU
Hi,
Please go through the below step, you can able to do it.
1) Shut down the Dell Latitude D620 if it's currently powered on. Click "Start" in the left-hand corner of the screen to access Windows' shut down options. Alternatively, press and hold the Latitude's power button, located on the top edge of the laptop's keyboard.
2) Turn on the computer by pressing the laptop's power button.
3) Press and hold "F8" on the top of the laptop's keyboard immediately after turning the computer on. If the Windows logo appears on the screen, you're too late and must repeat Steps 1 through 3 again. If you pressed it in time, a list of text options will appear on the screen.
4) Use your keyboard's arrow keys to scroll down to "Repair Your Computer." Push the "Enter" key on your keyboard.
5) Choose a language from the next list and select "Next." If you've password-protected your laptop, you will be prompted to enter your user name and password at this time.
6) Press "Dell Factory Image Restore." A new window will appear. Click "Next" and select the option for reformatting the hard drive and restoring the factory condition of the laptop.
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