As Dan suggested, your board was almost certainly warped which is one of several reasons why you should never bake your board. The whole premise of baking the board is centered around the idea of reflowing the GPU. Using an oven to perform this specific, localized repair is very messy. It heats up unnecessary portions of the board, warps the board, can cause heat damage to other (otherwise working) areas, and all sorts of nasty things. Reflows, if performed at all, should be done with proper equipment. I realize not everyone has a several hundred to several thousand dollar IR reflow workstation just sitting around and people still want to fix their stuff, but baking in an oven certainly isn’t the way to do it. A large kitchen hot plate for a bottom heater and a temperature controlled heatgun with a thermometer would have been a better “DIY” way than baking in an oven.
+
As Dan suggested, your board was almost certainly warped which is one of several reasons why you should never bake your board. The whole premise of baking the board is centered around the idea of reflowing the GPU. Using an oven to perform this specific, localized repair is very messy. It heats up unnecessary portions of the board, warps the board, can cause heat damage to other (otherwise working) areas, and all sorts of nasty things. Reflows, if performed at all, should be done with proper equipment. I realize not everyone has a several hundred to several thousand dollar IR reflow workstation just sitting around and people still want to fix their stuff, but baking in an oven certainly isn’t the way to do it. A large kitchen hot plate for a bottom heater, some metal clamps to prevent warping, and a temperature controlled heatgun with a thermometer would have been a better “DIY” way than baking in an oven.
That said, your board is warped. You can try to use copper shims to fill the gap (with thermal paste on both sides). You’ll need to measure the space between to know what size shims to buy.
As Dan suggested, your board was almost certainly warped which is one of several reasons why you should never bake your board. The whole premise of baking the board is centered around the idea of reflowing the GPU. Using an oven to perform this specific, localized repair is very messy. It heats up unnecessary portions of the board, warps the board, can cause heat damage to other (otherwise working) areas, and all sorts of nasty things. Reflows, if performed at all, should be done with proper equipment. I realize not everyone has several hundred to several thousand IR reflow workstation just sitting around and people still want to fix their stuff, but baking in an oven certainly isn’t the way to do it. A large kitchen hot plate for a bottom heater and a temperature controlled heatgun with a thermometer would have been a better “DIY” way than baking in an oven.
+
As Dan suggested, your board was almost certainly warped which is one of several reasons why you should never bake your board. The whole premise of baking the board is centered around the idea of reflowing the GPU. Using an oven to perform this specific, localized repair is very messy. It heats up unnecessary portions of the board, warps the board, can cause heat damage to other (otherwise working) areas, and all sorts of nasty things. Reflows, if performed at all, should be done with proper equipment. I realize not everyone has a several hundred to several thousand dollar IR reflow workstation just sitting around and people still want to fix their stuff, but baking in an oven certainly isn’t the way to do it. A large kitchen hot plate for a bottom heater and a temperature controlled heatgun with a thermometer would have been a better “DIY” way than baking in an oven.
That said, your board is warped. You can try to use copper shims to fill the gap (with thermal paste on both sides). You’ll need to measure the space between to know what size shims to buy.
As Dan suggested, your board was almost certainly warped which is one of several reasons why you should never bake your board. The whole premise of baking the board is centered around the idea of reflowing the GPU. Using an oven to perform this specific, localized repair is very messy. It heats up unnecessary portions of the board, warps the board, can cause heat damage to other (otherwise working) areas, and all sorts of nasty things. Reflows, if performed at all, should be done with proper equipment. I realize not everyone has several hundred to several thousand IR reflow workstation just sitting around and people still want to fix their stuff, but baking in an oven certainly isn’t the way to do it. A large kitchen hot plate for a bottom heater and a temperature controlled heatgun with a thermometer would have been a better “DIY” way than baking in an oven.
That said, your board is warped. You can try to use copper shims to fill the gap (with thermal paste on both sides). You’ll need to measure the space between to know what size shims to buy.