judging from the specs that gigabyte psu is more like 400 watt psu factoring 12v capacity
you could try this
http://ijk.com.au/branch/ijk/product_info.php?cPath=23_41&products_id=124157
:wtf:
http://hardocp.com/article/2010/11/22/cooler_master_gx_650w_power_supply_review/
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=188
i suggest this
http://ijk.com.au/branch/ijk/product_info.php?cPath=23_41&products_id=123264
well if you want to upgrade now i'd say get an old 790 am2+ board that supports an am3 slot in a 1055 and something along a 5850/gtx 470 wait til next year buy an am3+ board and ddr3 and maybe a second card keep your 1055 till bulldozer is settled and grab one
http://www.scan.co.uk/products/750W-XFX-Black-Edition-Single-Rail-Modular-Power-Supply
all you need for sli 470's
850 not needed unless you pushing sli 480's
if you dont need 3xfire
Open Box: BIOSTAR TA890FXE AM3 AMD 890FX SATA 6Gb/...
its been whipping ass
amd 955 clock record
1090t 3 place
555 clock record
http://hwbot.org/community/user/namegt?tab=submissions
newer psu's will have trouble powering that since the older psu's had a heavier 5v and 3v rail then the newer specs higher 12v rails but if worst comes to worst the zippy emacs 300 watts will be perfect