On ours, the temps runs about 45 C for graphics card during light gaming. I don't recall what the CPU does, but maybe cooler.
My opinion is that a repaste should never be needed unless it was done wrong in the first place. I've never done my G73jh (May 2010) and the GPU in there runs about 45 C as well.
🙂
Asus Maximus V Extreme BIOS 1903, see specs above avatar.
Asus G73 jh A1 laptop, BIOS 213, vBIOS OD2, 8 GB Ram, 240 GB Intel SSD, 180 GB Intel SSD. Win 7 Pro. Purchased new from PowerNotebooks.com in May 2010.
(both have 1920X1080 hd screens, mine above, hers below )
Asus G73 Sw XR1 laptop 8 GB Ram, 160 GB Intel SSD, 80 GB Intel SSD. Purchased used >Ebay 1/10/13, Did clean install of Windows 7