Question about Microsoft Xbox 360 Console

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3 flashing lights

Replaced heatsink paste and I still have 3 flashing lights

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When someone say that his/her Xbox is having 3 Flashing lights problem, It means it needs to be repaired. If you are using Cooler than it is not a cure but a prevention. You could have used cooler before acutally having the problem just to prevent your Xbox. But now you will have to either get it repaired from Microsoft (in case your Xbox's warranty is not expired, but one thing to note is that you will have to wait for at least 3-4 weeks to get back your Xbox) or you can Fix your Xbox's 3 Flashing red lights problem yourself with the help of DIY Video guide available on Internet. You can fix yourself without any technical knowledge.

Posted on Mar 05, 2009

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My xbox does this from time to time try just unpluggin it and plugging it back in. and also try unplugging the hard drive too

Posted on Jan 12, 2009


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Vga controller getting hot

Cool it :-)

Does it have a fan? Is it working? If not check it has power and replace it if necessary.

Is the heatsink getting hot? Check there is airflow over the heatsink. If it has enclosed ducting blow any accumulated dust out with compressed air.

If the the heatsink is not getting hot than the thermal bond with the GPU and/or memory is broken. This is the techy bit: if you don't feel comfortable with this either get someone else to do it or buy a new video card.

Go to an electronics shop and buy a tube of heatsink paste. Take the video card out of the computer and remove the heatsink assembly (they are usually secured with four screws and/or plastic clips. Remove the old thermal paste off with a plastic or wood scraper (this is important! you don't want to scratch the chip casing or the copper) and clean it off with alcohol. Drop a little new paste on each surface you cleaned. A little goes a long way here, a lot just makes a big mess when you squeeze the two surfaces together, so go easy with that stuff. Replace the heatsink assembly making sure its good and tight and you should be good to go again.

Oct 10, 2013 | Dell Computers & Internet

1 Answer

My lg ducted reverse cycle aircon has stopped working and the panel Is flashing CH 62. I have searched this and apparantely it means the inverter is over 85 degrees. It says to check the airflow across...


I would wish you to re-post this in Home & Garden > Household Appliances > Air Conditioners.

From my tiny bit of knowledge;

An Inverter is used to convert power. Makes heat as it does.

Thermal Paste is used to help transfer heat.

Computer tech, so..............

The top of a Processor, and the bottom of the finned Heatsink that sits on it; are not perfectly smooth.

A magnified view would detail, 'Hills, Valleys, and Pitholes'.
When the two parts are mated together, there are air pockets created because of the above imperfections.

Air in this case is an Insulator, not a Conductor.
Thermal Paste fills the above imperfections, and is an Excellent conductor of heat.

A Heatsink is a small piece of metal, that has Tall, Thin fins protruding from it.

The Heatsink absorbs heat from whatever object it is placed against, and the fins radiate the heat away.

If a fan is used in conjunction with the Heatsink, the air flow from the fan; helps carry heat away from the fins of the Heatsink

(No fan used with a Heatsink is considered Passive cooling.
With a fan, Dynamic cooling)

Apparently the Inverter, which makes heat; is not;

1) Tight against the Heatsink,
2) Thermal Paste has dried up.

When Thermal Paste dries up, (As it does from age, and repeated heating), it looses it's thermal conductivity properties.
In other words it's cr@p now, and needs to be replaced. (lol!)

The area of old Thermal Paste should be THOROUGHLY cleaned.
Yes, I'm talking about clean enough to eat off of.
(But don't................ewww! lol!)

With computers we use an old credit card, (It's PLASTIC), and scrape off as much of the old Thermal Paste as we can.
(Scrape off onto paper towel, scrape some more; paper towel, etc)

Both from the Top of the Processor, (In your case Inverter), and bottom of the Heatsink.

Then follow with Q-tips dipped in Isopropyl Alcohol. (Rubbing alcohol)
{Yes, dripping}
91 percent or higher is best, but 70 percent will do.
50 percent = No IMHO, because it is now 50 percent Alcohol, and 50 percent WATER.

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

Worried about excess Alcohol dripping off the Q-tips?
Don't be. It evaporates.

After cleaning Properly apply fresh, new Thermal Paste.

Thermal Paste, Thermal Grease, Thermal Compound; Same/same.

Thermal Gel, and Thermal Glue? NO.

IF, the Heatsink is held in place by Thermal Glue, this is what you need to replace with.

Told you what I know, not much.

The guys/gals in Air Conditioning though, are experts in this field.
I'm sure you will get the solution you seek from them.

Suggest include all pertinent information, such as model number.


Feb 27, 2013 | Computers & Internet

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

Red flashing lights shown on the console when i put it on,

Three or two? or four? depending on the number the diagnosis varies.2 lights - cpu has overheated (needs new thermal paste on heatsink)3 light - "Red Rings of Death or RROD) gpu (graphics processing unit) has come off the mainrboard, this happens because the console heats up and the solder becomes fluid, moves, ands sets in  the wrong spot. This can be fixed by reflowing the solder and we usually reapply fresh thermal paste. Some people also have a new clamp system they put on the mainboard.4 lights - means the av cable is not plugged in correctly.Youll need a few things to fix it, this is an awesome site

Nov 28, 2010 | Microsoft Xbox 360 Console

1 Answer

ACER ASPIRE M1201- Tower boots up, LED power light comes on, fan is running, but the cylinder icon is not lighting up - therefore the monitor is not turning on. What is the cylinder icon on all computers?...

Cylinder Icon Usually = HARD DRIVE ACTIVITY!

PULL SIDE OFF of computer, CHECK BOTH ENDS OF sata CABLES if THE HARD DRIVES ARE sata, IF not, CHECK THE CONNECTORS, NO MATTER THE TYPE. also, CHECK THE POWER CONNECTORS. Those SATA connectors are FAMOUS for coming JUST loose enough to NOT work, but LOOK like they are plugged in, Make CERTAIN computer is UNPLUGGED, and YOU ground yourself to computer before sticking your paws in computer., CAN cost u a lot of money. A LOT of those ar e HOT plug, but, don't find out the hard way!
Just MOVING the computer can loosen the SATA connector enough to not work. CAREFUL, I always reseat all cables, video card, memory, other cards, JUST to be certain after a move. AND, HEATSINKS/CPUs. Actually, just Heatsinks, CPU's are pretty safe. IF you pull Heatsink off, clean off the heatsink and CPU surface of thermal paste,l and replace wtih a minimal amount of Thermal Paste, Aprrox. .003"

Robert Two Bears, PhD

Jun 24, 2010 | Acer Aspire M1201 Athlon X2 320 Gb PC...

1 Answer

System just stops playing and 2 red lights come on

Your system is overheating.

Check whether the fans are running. If not, that's the problem, check whether they are jammed or faulty (replace, check power).

If they are running, then take the 360 apart completely, take the motherboard out of the case. Remove the heatsink (the lower one). Use rubbing alcohol to remove residual heatpaste from the heatsink bottom and from the GPU (the thing that the heatsink was covering).

Reapply (thinly but completelty) GOOD thermal paste (e.g. Artic Silver nr 5). Replace the heatsink by either using the xclamp or use washers and bolts/nuts (google for x-clamp replacement) while you're at it.

Or take it to someone who can do this for you :) (I'm in the Netherlands, but otherwise I'd be happy to help you out (

Jun 16, 2010 | Microsoft Xbox 360 Console

1 Answer

2 red light error heatsinks wont heat up

2 red flashing lights means your console overheated you just needed to let it cool and or check the fans and other cooling components, and by the sounds of it not heating up you have cooked the chips by trying to fix it so you console is basically a paper weight now, sorry

Nov 13, 2009 | Microsoft Xbox 360 Console

1 Answer

PC will not turn on

There should be flash come on the green color. Remove your ram spray with soft air, then power on again. You might need to remove the heatsink and replace the heatsink paste, and clean around the CPU.

Jul 24, 2009 | Compaq Evo D500 PC Desktop

1 Answer

D530 remove processor

Hi, theres no way im afraid for testing processors without having another motherboard to test it in.
If you take out the processor and resit it in the motherboard and replace the heatsink and fan, with new thermal grease and try it,
Do not switch on the pc at any time without the heatsink on as it will destroy the cpu as they heat up very fast, and always replace the thermal paste on the cpu/heatsink whenever you take off the heatsink,,
Have a nice christmas

Dec 10, 2007 | Computers & Internet

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