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CX500 Corsair PSU for 2x sapphire hd 7770

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October 22, 2013 8:26:11 AM

I had A lot of fun building my first computer and its been running great so far!
I'm thinking of getting another 7770 in the future to play around with crossfire and see what extra performance can be had. I looked around but can't seem to find a calculator or anyone with a similar build to find out if I can run crossfire with that particular psu so if anyone has any advice it would be much appreciated!

Build specifications:
1.GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard (rev. 4)
2.AMD FX-6300 Vishera 3.5GHz (4.1GHz Turbo) Socket AM3+ 95W Six-Core Desktop Processor FD6300WMHKBOX (overclocked very lightly to 3.8ghz, haven't figured out how to run at 4.1 ghz turbo mode)
3.SAPPHIRE 100358OCL Radeon HD 7770 GHz Edition 1GB 128-bit GDDR5 PCI Express 3.0 x16 CrossFireX Support Video Card (80 watts)
4.Seagate Barracuda ST2000DM001 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - OEM (2 platter version.. quite fast for a mechanical drive)
5.CORSAIR Builder Series CX500 500W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply
6.Kingston HyperX Black Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX16C9B1BK2/8
7.Rosewill Galaxy-03 Black Gaming ATX Mid Tower Computer Case, comes with Three Fans-1x Front Blue LED 120mm Fan, 1x Rear 120mm Fan, 1x Top 120mm Fan, Top mounted USB 3.0 Port

As far as I know that gpu only requires about 80watts and most of the other components are fairly low wattage like the fx-6300 is 95w. I only spent about $540 for the whole setup and It was easy to assemble and I ran crysis 3 with slightly tweaked ultra settings at 30-45 fps so I don't really need the extra card and I'm only going to really consider when the card comes down a little from its current price of $110.
Also does anyone know what settings I should use with that mobo to run fx-6300 at 4.1ghz turbo mode?
Thanks!

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a b ) Power supply
October 22, 2013 12:09:03 PM

500 watt is plenty to run crossfire 7770's :p 
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October 22, 2013 2:56:45 PM

why would I need a modular supply? The cx500 has 2x 6 pin connectors.
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a b ) Power supply
October 22, 2013 6:30:43 PM

Jarvist said:
why would I need a modular supply? The cx500 has 2x 6 pin connectors.


XD! total fail on my part! Yes, you don't need a modular psu :p 

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a b ) Power supply
October 22, 2013 6:37:06 PM

no. the logical solution is to get a 7950 or a r9 280x instead of crossfire. crossfire on lower end cards are a waste of time. dont even bother. sell your old card and get a new one
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October 23, 2013 8:14:12 AM

Why Is thebigtrolls answer selected as best solution?.... TBC1 was the actual one to answer my question and not give me a generic answer that everyone knows already.
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October 23, 2013 9:09:01 AM

And a lot of people that have actually CF these cards suggest otherwise and say that due to driver fixing regarding Crossfire these two cards perform well and you can see almost 2x the performance from a single regardless the fact you don't have more gpu memory utilized. So for the $140-150 total for two I think is an amazing deal seeing how it performs slightly better than a 7970 as far as raw fps in game at 1080.
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a b ) Power supply
October 23, 2013 9:15:32 AM

Jarvist said:
And a lot of people that have actually CF these cards suggest otherwise and say that due to driver fixing regarding Crossfire these two cards perform well and you can see almost 2x the performance from a single regardless the fact you don't have more gpu memory utilized. So for the $140-150 total for two I think is an amazing deal seeing how it performs slightly better than a 7970 as far as raw fps in game at 1080.


I agree! (also, pick your solution to the thread).

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October 23, 2013 10:17:33 AM

Thank you TBC1! The main point to that was that I had fun building my first pc and although I could just sell the one I have and get a better gpu the sapphire HD 7770 ghz oc is an amazing deal for the performance and id like to try CF for the learning as well as performance boost. I just beat Farcry 3 on every setting maxed at 1080 and I was getting around 40 fps most of the time.. it rarely dipped below 40. It makes me wonder if a lot of the benchmarks you see are inaccurate as I have been trying metro last light which is supposed to be a gpu killer but with SSAO off and everything else at highest I get an average of 30 fps and to me as long as it doesn't dip below 24fps Its very playable. I think for most people its a dick measuring contest and people want to say that CF sucks because they shelled out way more $$$ than they actually needed to.. also a lot of people don't realize that its not just the gpu that makes for smooth performance its the whole damn system. I think that's why mine does well with a fx-6300 oc to 3.8 ghz, 8gb 1600mhz kingston hyperx, cx500 psu and GIGABYTE GA-990FXA-ud3 which I lucked out and got the rev 4.
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a b ) Power supply
October 23, 2013 10:49:04 AM

Jarvist said:
Thank you TBC1! The main point to that was that I had fun building my first pc and although I could just sell the one I have and get a better gpu the sapphire HD 7770 ghz oc is an amazing deal for the performance and id like to try CF for the learning as well as performance boost. I just beat Farcry 3 on every setting maxed at 1080 and I was getting around 40 fps most of the time.. it rarely dipped below 40. It makes me wonder if a lot of the benchmarks you see are inaccurate as I have been trying metro last light which is supposed to be a gpu killer but with SSAO off and everything else at highest I get an average of 30 fps and to me as long as it doesn't dip below 24fps Its very playable. I think for most people its a dick measuring contest and people want to say that CF sucks because they shelled out way more $$$ than they actually needed to.. also a lot of people don't realize that its not just the gpu that makes for smooth performance its the whole damn system. I think that's why mine does well with a fx-6300 oc to 3.8 ghz, 8gb 1600mhz kingston hyperx, cx500 psu and GIGABYTE GA-990FXA-ud3 which I lucked out and got the rev 4.


Yeah, way to go with the CF (it's definitely getting more popular these days and the drivers are getting better). Also, 7770's are cheap so buying a whole new gpu is pointless when you can add 2nd to your setup.
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October 24, 2013 5:02:34 AM

Hey this is a little off topic but do you know if there are any modded catalyst drivers? I used some modded drivers for a gtx 260m I have in my laptop and I got a considerable boost with them, most likely +10 fps average in all the games I had.
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a b ) Power supply
October 24, 2013 9:07:09 AM

Jarvist said:
Hey this is a little off topic but do you know if there are any modded catalyst drivers? I used some modded drivers for a gtx 260m I have in my laptop and I got a considerable boost with them, most likely +10 fps average in all the games I had.


Yes, there are. Just search in Google and you'll find a bunch of results.
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October 24, 2013 1:17:11 PM

Thank's I did before asking but couldn't seem to find a viable resource.
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!