I Need advice with CPU Cases and PSU

No because they are all not compatible...

you cant change the CPU because the mobo is too old...
the only viable option is buy a case, psu
and put Radeon 7770 you bought

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Case: NZXT Source 210 Elite (White) ATX Mid Tower Case ($42.98 @ Amazon)
Power Supply: Corsair CX 430W 80 PLUS Bronze Certified ATX12V Power Supply ($24.99 @ Newegg)
Total: $67.97
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-10-15 00:56 EDT-0400)

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if you change the cpu and mobo, you will end up building a whole new PC
 

biohazard918

Honorable
Jun 30, 2012
22
0
10,520
Ok first off psu/case combos make me nervous a cheap psu can quite literally catch fire i know it says its a sea sonic and they make good psu's but it doesn't list a model number and i see no reason to risk getting a crap psu. Also that case is HUGE. I would suggest some thing like this case its 30 bucks and comes with a 120mm fan and has mounting points for 4 more. And this psu it kinda the go to psu when you need some thing cheap and don't need a ton of power it's a solid budget psu. Also that cpu won't work with your system I'll look a round a bit and see if i can't find some thing that will work you may be SOl how ever as old as the system is.
 

biohazard918

Honorable
Jun 30, 2012
22
0
10,520
Yeah your SOL as far as a new cpu goes i thought that was an AM3 socket but its AM2+ you're not going to find any new cpu's for that socket its too old your best bet is ebay and a used cpu just make sure its AM2+ and has a 95 watt TDP. You won't be playing games on there highest setting your pc just can't do your cpu is to old and slow and the 7770 is about as low end a gpu as you can get and still play modern games. You are really at the build a new pc point. Sorry :(
 

Grantgarrison10

Honorable
Sep 15, 2013
108
0
10,680


Ok thanks. I could return the card and around 350 budget for a new gaming desktop. Would I be able to get a gaming desktop that would be able to run games like lol, wow, and skyrim on highest settings?