Delidding dead cpu

[AYDANN6ix9ine]

So I accidentally killed my 2600X and got a better overclocking 2600 as a replacement. I don't want to throw the CPU away but I want to use it as some sort of decoration for my setup. I want to delid and have the actual die be exposed. I don't have the tool but are there any easy ways to do this at home?

[Lord Mirdalan]

How did you kill the 2600?

[mariushm]

The top is soldered to the cpu die.

You could try something as simple as placing the cpu on a frying pan on the fire and get the temperature up to around 170-200 degrees (of course figure a way to measure this temperature)

Once you're there, pick up the cpu and insert a tiny screwdriver in a corner and use it like a crowbar to pop the lid - if it's deal already you don't care about how nice you do it. Use an sharp blade to cut the insulation around the lid first, to easily insert the screwdriver later.

 

See this video :

 

 

 

 

[AYDANN6ix9ine]

2 minutes ago, mariushm said:

The top is soldered to the cpu die.

You could try something as simple as placing the cpu on a frying pan on the fire and get the temperature up to around 170-200 degrees (of course figure a way to measure this temperature)

Once you're there, pick up the cpu and insert a tiny screwdriver in a corner and use it like a crowbar to pop the lid - if it's deal already you don't care about how nice you do it. Use an sharp blade to cut the insulation around the lid first, to easily insert the screwdriver later.

 

See this video :

 

 

 

 

Do I have to use a frying pan? I don't have anything to measure temperature. Maybe I could bake it at around 200 degrees and that could work? Not sure. Also, what if I heat it up at something like 225-250. Is it dangerous?

[mariushm]

Just now, AYDANN6ix9ine said:

Do I have to use a frying pan? I don't have anything to measure temperature. Maybe I could bake it at around 200 degrees and that could work? Not sure. Also, what if I heat it up at something like 225-250. Is it dangerous?

I guess you could use an oven... if you get it to 225-250 you may see the gold plated pins fall off, I think those are soldered with a lead free solder or something that would start to become liquid at around 217 degrees Celsius or higher.

The indium solder used between the chip and the lid has lower melting temperature, I think it's somewhere around 143 degrees Celsius (depends on actual allow), so 170 degrees Celsius is enough to get the solder inside above 140ish degrees (the top acts as radiator, cooling the solder a bit constantly, so you fight against that with higher temperature)

 

[AYDANN6ix9ine]

So

25 minutes ago, mariushm said:

I guess you could use an oven... if you get it to 225-250 you may see the gold plated pins fall off, I think those are soldered with a lead free solder or something that would start to become liquid at around 217 degrees Celsius or higher.

The indium solder used between the chip and the lid has lower melting temperature, I think it's somewhere around 143 degrees Celsius (depends on actual allow), so 170 degrees Celsius is enough to get the solder inside above 140ish degrees (the top acts as radiator, cooling the solder a bit constantly, so you fight against that with higher temperature)

 

Oven does not have celsius option. Is 350 degrees Fahrenheit good enough to melt the solder? [EDIT] Actually, apparently the melting point of an Indium Solder is 157 degrees celsius. So would 375 Fahrenheit better to melt solder on the inside?

[mariushm]

See https://www.wolframalpha.com/input/?i=350+degrees+F+to+Celsius

 

or https://www.google.com/search?q=350F+to+C

 

[AYDANN6ix9ine]

Just now, mariushm said:

See https://www.wolframalpha.com/input/?i=350+degrees+F+to+Celsius

 

or https://www.google.com/search?q=350F+to+C

 

Also, how long should I wait for CPU to bake in oven since I actually don't have a tool to measure temp.

[mariushm]

Sigh i don't know man... the oven needs to go up in temperature and heat it up and so on... use your brain... you have to keep it long enough to be hot and then pull it out from the oven quickly and before it cools down you have to try to remove the lid... use some oven mitts or whatever they're called to grab the cpu...