Instead of using bulb, I used a heat blower to re-flow the chip.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDTDAMhVq5YHqwhYNop8BTNcqMsMc3UtWBIl1vU4WjnYHH34tMB8t7wJ9I8V2NB21LPv1h2xSX5b7fMnpzOgScOPxBl-DbZXM7XHNfpd9tpLd9LFm96YSJV_ermnPSRpvlPWrxYbti0w5f/s200/blower.jpg)
From my observation, there is a the gap between the GPU and the heat sink was join by a burned thermal conductive silicone sponge.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8HOkcM4CvBEFfrox782DCnqu67a4y4Yg4tMWjzPILcPXK-bCdqPpdZvydHPdLGVPTtohnf-bwNABMVBYmVAZixzyg9_uxErQZ2F2uKQb5P3eQW0sm0xuGbdTUAEXLpeclkrUQdbCWE2Rb/s200/al_foil.jpg)
I replace this with an aluminum foil folded a couple of times to get just the right thickness.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPX2Zx2d_7sXTU0oOhP-Yx7ZTSwlXCdsTFmdOYG1R4BaS5-CpmUAdqZBuQHzmvRpYn_chvN92dAf4bG7dHijy3SvorI-CgUIJAuoc012oh9hTpLJBzIOrF9dbA0HAhjLgkqB90MiUEdRl0/s200/done2.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgU4gZpn_tz8fzXs28PEcLcIf-CxObNxNIm-94y4fpR_QTmXGARoC77q4bayvvtvsjH2hOCiOPfI3xVYDOz-D5clUN90N93ZDg1z6PtWgDFmzHV_dAiEijQtCifpwRPQdsJhXj_N6B9IEiQ/s200/done1.jpg)
After reassemble it back together and now, the moment of truth, Hey! it works! :-)
Thanks a lot jasonshay2. You really save my day.
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