NV78 Processor upgrade

Yes you can upgrade but it will void your warranty

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I believe T6600 in NV7802U can be upgradet to any of the followings:

Intel® Core™2 Duo Processor T9900
(6M Cache, 3.06 GHz, 1066 MHz FSB)
AW80576GH0836MG 35 W

Intel® Core™2 Duo Processor T9800
(6M Cache, 2.93 GHz, 1066 MHz FSB)
AW80576GH0776MG 35 W

Intel® Core™2 Duo Processor T9600
(6M Cache, 2.80 GHz, 1066 MHz FSB)
AW80576GH0726MG AW80576GH0726M 35 W

Intel® Core™2 Duo Processor T9550
(6M Cache, 2.66 GHz, 1066 MHz FSB)
AW80576GH0676MG 35 W

Intel® Core™2 Duo Processor T9500
(6M Cache, 2.60 GHz, 800 MHz FSB)
FF80576GG0646M 35 W

Intel® Core™2 Duo Processor T9400
(6M Cache, 2.53 GHz, 1066 MHz FSB)
BX80576T9400, AW80576GH0616M, AW80576GH0616MB 35 W

Intel® Core™2 Duo Processor T9300
(6M Cache, 2.50 GHz, 800 MHz FSB)
BX80576T9300, FF80576GG0606M 35 W

Intel® Core™2 Duo Processor T8300
(3M Cache, 2.40 GHz, 800 MHz FSB)
BX80577T8300, FF80577GG0563M 35 W

Intel® Core™2 Duo Processor T8100
(3M Cache, 2.10 GHz, 800 MHz FSB)
BX80577T8100, FF80577GG0453M, FF80577GG0453MN 35 W

Intel® Core™2 Duo Processor T6670
(2M Cache, 2.20 GHz, 800 MHz FSB)
AW80577GG0492MH 35 W

Intel® Core™2 Duo Processor P9700
(6M Cache, 2.80 GHz, 1066 MHz FSB)
AW80576SH0726MG 28 W

Intel® Core™2 Duo Processor P9600
(6M Cache, 2.66 GHz, 1066 MHz FSB)
AW80576SH0676MG 25 W

Intel® Core™2 Duo Processor P9500
(6M Cache, 2.53 GHz, 1066 MHz FSB)
AW80576SH0616MG, BX80576P9500, AW80576GH0616M 25 W

Intel® Core™2 Duo Processor P8800
(3M Cache, 2.66 GHz, 1066 MHz FSB)
BX80577P8800, AW80577SH0673MG 25 W

Intel® Core™2 Duo Processor P8700
(3M Cache, 2.53 GHz, 1066 MHz FSB)
25 W

Intel® Core™2 Duo Processor P8600
(3M Cache, 2.40 GHz, 1066 MHz FSB)
BX80577P8600, AW80577SH0563M 25 W

Intel® Core™2 Duo Processor P8400
(3M Cache, 2.26 GHz, 1066 MHz FSB)
AW80577SH0513MN, BX80577P8400, AW80577SH0513M 25 W