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No picture but have sound

Found your advice for no picture but have sound but i don't know what the gpu or heatsink or thermal coating is can you elaborate

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If you want to solve soon the xbox360 problems like 2red lights problem, 3red rings problem,E74 error,audio but no video, audio but no picture, 3flashing red ring problem, red ring of death problem, rrod, ring of death problem, Disc read error, One red light problem, freeing problem, then you should have to Click Here.

Posted on Jan 10, 2010


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No video

Sounds like crappy solder on th gpu. Basically, you need to take a hair dryer to the GPU and reseat it. HP had this problem on a bunch of older DV models. Without knowing your model, I can't post specific instructions.

Supplies needed:
Thermal paste, I recommendArctic Silver as it has better heat transfer properties
Hair dryer
wooden spoon

Strip the chassis to the motherboard, pull the heatsink from the GPU and set the board on a heat resistant surface. Clean all old thermal paste from the GPU. Heat up the GPU with your hair dryer while using the wooden spoon to press down on it.. When you see the solder turn shiny, turn off the dryer. Continue to press down on the GPU until the solder changes back to a dull color. Let everything cool down before reassembly. During reassembly, make sure to clean the old thermal paste off the heatsink and reapply a fresh layer. Reassemble your laptop, and turn it on to see if the fix worked.

I know at one point there was a bad batch of solder that made its way onto assorted motherboards, so this fix may work for the same issue on many laptops. Good luck!

Dec 28, 2013 | Samsung N150 Netbook

2 Answers

Why does my video stall on anything

Open the Task Manager, click on the Performance tab, is your CPU running at or near 100% while the Media Player is playing the video? If so, you may have to many open/running programs. Running a Media Player requires more Processor and Memory. What Media Player are you using? Are you viewing the video on-line? You didn't supply the Acer model or the OS you are using?

Feb 25, 2013 | Acer Computers & Internet

2 Answers

My computer suddenly shut down without notice. It does it when I'm using battery power and it will also do it if the battery is out of the laptop and I'm using the power cord..

Suggest laptop is dirty inside.

Air is used to cool the hardware components inside the laptop.
If 'Gunk' coats these cooling components, (finned Heatsink, and small Fan Assembly), the cooling capacity of those cooling components drops Tremendously.

['Gunk' = Dust, dirt, lint, hair, food crumbs, name it ]

If the Processor overheats it turns off. (BIOS turns it off)
This is a fail safe feature built-in.
Keeps the processor from burning up. (Sometimes Literally!)

Using Dell XPS laptop to show you the 'Gunk' that can accumulate,

This is an example of part of the cooling assembly; for an Acer Aspire 7720 series of Notebook PC,

Click on the photo to enlarge.

The curved copper tube is the Cooling Tube.
Slightly flattened copper tube, sealed on both ends, and filled with Nitrogen.

At the top of the view, on the Cooling Tube; is the small metal aluminum plate that sits on the Processor.
4 Philips head mounting screws.

At the bottom in the view, is the rectangular finned Heatsink.
The last cooling assembly part is the Fan Assembly,

The small fan is a multi-bladed unit, that sits in a D-shaped shroud.
In the view the Bottom is the opening.
The opening sits RIGHT AGAINST the finned rectangular Heatsink.

Heat is absorbed by the two small metal plates on the Cooling Tube, from the Processor, and GPU.
The heat is then absorbed by the Cooling Tube, and transferred to the Heatsink.

The Heatsink absorbs the heat, then radiates it away, with it's Tall, Thin fins.
Air flow from the Fan Assembly, helps to carry heat away from the Heatsink's fins.

If the Fan Assembly's fan blades are coated; and the fins of the Heatsink are clogged; the cooling capacity drops TREMENDOUSLY.

Your Aspire 7720 may also has a separate Cooling Tube, and Heatsink; for the graphics chipset. G.P.U.,


The top of a Processor, and the top of the graphics chipset; is Not perfectly smooth.
Neither is the bottom of the metal plates of the Cooling Tube/s, that sit on them.

A magnified view would detail, 'Hills, Valleys, and Pitholes', in the surface.
When the two parts are mated together, (Processor/Cooling Tube plate; Graphics chipset/Cooling Tube plate); there are air pockets that are created.
Created from the imperfections listed above.

Air is an Insulator; not a Conductor.
Thermal Paste fills these imperfections, and is an Excellent conductor of Heat.

There may be also Thermal Pads that are used. Pad material impregnated with Thermal Paste.

After time, and repeated heating from the Processor, and GPU, (Graphics chipset), the Thermal Paste dries up.
It also looses it's thermal conductivity properties.

SINCE, all you have to do is remove the large panel, from the bottom of the laptop, (Battery Compartment facing Away from you; the large panel to the Right), you have full access to all cooling components.

It would be in your best interest to remove the Cooling Tube/s/Fan Assembly, and clean the top of the Processor, and GPU. Also the metal plates of the Cooling Tube/s.

I use an old credit card to scrape as much of the old Thermal Paste off, as I can. (Needs to be plastic, or wood; because it needs to be Anti-Static. NO -> Metal scraper)

Use Q-tips dipped in Isopropyl Alcohol. (Rubbing alcohol)
91 percent is best IMHO, but 70 percent will do.
To me 50 percent = No. 50 percent Water, and 50 percent Alcohol.
Takes a LOT of alcohol soaked Q-tips, as it's usually a gooey mess.

Isopropyl Alcohol is EXTREMELY FLAMMABLE!
Use in a WELL ventilated area with NO sparks or flames present!

How clean? Literally clean enough to eat off of. (Don't worry about excess alcohol dripping down. It will evaporate)

Now PROPERLY apply fresh, new Thermal Paste for the Processor, and CUT a new Thermal Pad for the GPU.

{Old thermal pad is carefully peeled off }

Screws for the Cooling Tube processor plate, and GPU Cooling Tube plate; are lightly tightened down until they touch, then tightened in a crisscross fashion.

You want the plates to sit F-L-A-T on the Processor, and GPU.

Free Service Manual so you can disassemble,

Go to the 'paragraph' that starts with Aspire 1200. (1200 in Blue)
Drop down to the 12th line. (7530G in Blue)
Scroll across, and click on 7720 in blue.

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name (7720) it may take up to 30 seconds, before the first page comes up.
(The PDF file is downloading in the background)

Buy and use an ESD wrist strap. Connect it's alligator clip to a good ground source.
Electro Static Discharge.

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
You CANNOT just touch the metal framework, as you would for a desktop computer; to relieve your body of Static.

Average price is around $3 to $6. Here is but one example,

I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.
I feel an Anti-Static Mat is unwarranted. (And I have a repair shop)

You can set a large metal serving tray (Unpainted), on the table you're working on; and connect to it.
Or a large metal knickknack. (Unpainted)
You get the idea.

Use a mutli-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!

Use a small soft bristle brush, (Makeup brush?), Q-tips, and a can of compressed air for computers, to clean the inside of the laptop out.
Especially the fins of the Heatsinks, and Fan Assembly.

For additional questions please post in a Comment.

Dec 12, 2012 | Acer Aspire 7720-6569 Notebook

1 Answer

Heatsink power

Is this a laptop or desktop?

Did you apply a fresh coat of Thermal Paste on the CPU and Heatsink? If not, that might be your problem. Remove the heatsink, and remove the cpu from the socket also (remember how it goes back into the socket). Most times the thermal paste has probably dried up or is too thin to keep the unit cool and it's like metal touching metal and shorts out the motherboard when you try to power it on. Apply a fresh coat of Thermal Paste then put it all back together and reboot.

May 31, 2012 | Computers & Internet

1 Answer

Need replacement FAN for ATI Radeon HD2600Pro graphics card. Where are best sources?

Some ideas,




Skipped past the ATI Radein HD2600 Pro, (More of an Nvidia fan), so I don't know how they have the fan/heatsink attached.
Don't know if they used Thermal Glue, or Thermal Paste for the heatsink. (Or a thermal pad)

It is Always best to replace the thermal compound. Cheap insurance.

A) Thermal Pad:
Remove the heatsink.
Carefully remove the pad the best you can, then use Q-tips dipped in Isopropyl Alcohol to soften the remnants. Follow with a plastic scraper, (Old credit card?), and more Q-tips dipped in alcohol.

Make SURE the top of the GPU is CLEAN. Then properly apply fresh thermal paste to the top of the GPU, and set the fan/heatsink assembly in place. Lock the fan/heatsink assembly down.

Graphics Processing Unit,

The GPU used in an ATI Radeon HD2600 Pro graphics card, is an ATI RV630,

B) Thermal Glue:
Requires using a hairdryer set to low heat, and constantly moving the hairdryer's nozzle around slowly.
Once the glue softens gently twist the heatsink loose.
(Wear gloves)

C) Thermal Paste:
Remove the heatsink.
Use a clean plastic scraper, and plenty of Q-tips dipped in alcohol on the GPU.

(Isopropyl Alcohol. Commonly referred to as Rubbing Alcohol.
91 percent is best, 70 percent will do in a pinch. Advise against 50 percent.
50 percent alcohol, 50 percent water.

Isopropyl Alcohol is EXTREMELY FLAMAMABLE.
Use in a Well ventilated area with NO sparks or flames present.

Once you set the heatsink, or fan/heatsink assembly in place, and have it secured, look at a side view of the graphics card.
Room well lit, and a light background.

See if the heatsink is sitting flat. You do not want it sitting at a slight tilt.

As you can see, I am trying to steer you towards making sure the thermal compound, is in good shape. It is best to just replace it. Thermal paste is cheap stuff.

For additional questions post in a Comment.


{To Add:

Basic construction is a plate of metal with tall, thin fins protruding from it.
The plate of metal absorbs heat from whatever object it is placed against, (In this case a GPU)
The tall, thin fins absorb heat from the plate.

The fins then radiate the heat away.
With a fan used in conjunction with a Heatsink, the air flow from the fan helps carry heat away.

Thermal Compound:
{Thermal Paste, Thermal Glue}

The top of a Processor, and the top of a GPU are not perfectly smooth.
A magnified view would detail, 'Hills, Valleys, and Pitholes'

Same with the bottom of a Heatsink. (The plate)
When the Heatsink is set on top of the Processor, or GPU, there are air pockets created from the imperfections of the two surfaces.
Air is trapped in-between the two surfaces.

{Heatsink on top of Processor, or Heatsink on top of GPU}

Air is an Insulator. Not a Conductor.

Thermal paste fills the voids, (Imperfections), and is an Excellent conductor of heat.
Thermal paste, (or a Thermal Pad), can dry up over time.
The thermal conductive properties are gone, or negligible ]

Aug 02, 2011 | Computers & Internet

1 Answer

My hp dv9008nr windows xp turns on hard drive moves along with the fan but it won't boot up. It shut down in the middle of me trying to recover the microsoft ware. I just replaced the screen and it worked...


the problem is the nVidia GPU. it often overheats. there was a recall for this computer a while back. the recall has ended, but just so you know, you need to find a way to better cool the GPU. a copper shim between the GPU and the
heat-sink will do wonders for you. apply Arctic Silver Thermal Epoxy to the shim and attach it to the heatsink. then, you need to use arctic silver 5 thermal paste on the GPU (about .2 grams should cover it) and reattach the heatsink to the board. while you are at it, replace the CPU thermal **** with the as5 thermal paste. my GPU is running now between 58 and 66 C. its really high still, yes, but the computer will not longer shut down because of overheat. get a laptop cooler for this thing too. it will not survive a hot summer day. i am absolutely positive.

Feb 22, 2011 | HP Pavilion dv9008nr Notebook

2 Answers

X360 Picture not come up sound does

could be av leads but more likely to be heatsinks on gpu/cpu.if you have a 1 year warranty send it in to microsoft for repair,if not,the extended 3 year warranty does not cover this repair and will cost £81.if you want to fix this yourself,buy a xclamp kit off ebay for £2 take apart your console(theres plenty of videos on youtube on how to do this) remove heatsinks(you should get a link with xclamp kit on how to do this) and clean old thermal paste off and apply new,put xclamp kit on do the baker mod to heat up gpu,tighten screws and 99% it will work,if not try again till it does,i've done tis plenty of times and never had 1 that i hav;nt got working again

Mar 20, 2010 | Microsoft Xbox 360 Console

1 Answer

Toshiba Satellite 1005-S157 shuts down periodically by itself. Replaced fan/heatsink. Still shuts off.

you need to check a few things... when the fan/heatsink assembly were replaced, did you make sure that the thermal pads on the CPU and GPU are NEW/Good.... Make sure that the Heatsink GPU pad Firmly sits in the chip....

You can test the thermal controller by using a hair dryer or heat gun.... Point it onto the heatsink pipes and see if your fan spins when the pipes get hot, then remove and see if the fans slow after a minute...

You might have faulty RAM or Misseated RAM... Pull The RAM chips and reseat them...
Also Make Sure Your CPU Is Locked Down....

Periodic Shut Downs Can Be Caused By Quite A Few Different Things...

Typically it's due to Thermal Damage
Though Failing RAM or A Failing Hard Drive, Overheated Video/GPU Chip, Or Even Failing CPU can as Well Cause This Issue...

Nov 16, 2009 | Toshiba Satellite 1005-S157 Notebook

1 Answer

Xbox 360

Overheating GPU or damage GPU either way, you have to open your xbox and check if the GPU and the heatsink have thermal compound on it. Comment if it doesn't work.

Aug 18, 2008 | Microsoft Xbox 360 Console

1 Answer


Well before anything check if the cables are good, if they are then you'll have to open your xbox and check if the GPU have thermal compound on it. If it doesn't then buy one like Artic and put some on the GPU and on the heatsink then check if that works, if it doesn't work then it could that the GPU is damage or motherboard, well it could be many things other than the GPU.
Hope it helps :-)

Aug 18, 2008 | Microsoft Xbox 360 Console

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