Re: hp compaq cq60 power light turns on itself but no display
Use flux if you have it. Should help it last longer. I use 7 minutes at 210 degrees C, that works out to 410F. I monitor with the temperature probe of my multimeter, even the cheap ones are good to 300C so no problem sticking it inside and closing the door over the cable. You put the board on the cooking tray GPU side up, and make 4 small aluminum foil balls to put under it. The board must not touch the tray, that's what the foil balls are for.
Preheat oven before putting the board in. After the 7 minutes are past, open the door and pull the tray only halfway out. Let it cool down at least 30 minutes before reassembly. Needless to say, remove anything that's removable including cooler and CPU, but don't insist in stripping any plastic or tape off the board - it won't melt. When you put it back together, replacing the thermal pad with an aluminum or copper shim will help greatly as well.
Use flux if you have it. Should help it last longer. I use 7 minutes at 210 degrees C, that works out to 410F. I monitor with the temperature probe of my multimeter, even the cheap ones are good to 300C so no problem sticking it inside and closing the door over the cable. You put the board on the cooking tray GPU side up, and make 4 small aluminum foil balls to put under it. The board must not touch the tray, that's what the foil balls are for.
Preheat oven before putting the board in. After the 7 minutes are past, open the door and pull the tray only halfway out. Let it cool down at least 30 minutes before reassembly. Needless to say, remove anything that's removable including cooler and CPU, but don't insist in stripping any plastic or tape off the board - it won't melt. When you put it back together, replacing the thermal pad with an aluminum or copper shim will help greatly as well.
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