My computer doesn't work with my graphics card in

brandon9455

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I recently installed a Radeon RX480 into my computer and when I Tryed to turn it on to see if it works, it didn't show any sign of life what so ever.
When I took it apart and removed my graphics card the computer started up again normally. So I'm confused whether it's my power supply not being able to handle my graphics card or my computer/mobo not being able to use my graphics card.

My mother board is the Gigabyte F2A78M-HD2
My processor is the AMD 6600k
And before my graphics card, I had Radeon 8570D on board graphics. (Eugh I know) my power supply is a ATX switching power supply which sais its 500W.
 
Solution
As stated, your PSU is too low of quality for a RX 480.

There is a very huge gap in quality between Power Supplies and there is no regulating bodies that require a PSU to output its stated load or have specific saftey protections in it. There is the 80+ certification but this in itself is ZERO indication of quality and is getting common for low end models to fake the certification.
A quality PSU can output its stated load and has many safeguards put in to protect your equipment. A low quality unit (like yours) cant handle outputing 50=60% of it sstated load and when it dies it fries the rest of your computer. There have even been many occurencies of these units sparking and causing fires.


Also as a side note, your 660k is going to...
Update your mobo's BIOS first. Also the PSU might be responsible for your issues. Please post your PSU' model and manufacturer. ATX PSU and 500W is not enough. Does it have a PCIe power connector? Did you plugged it in the GPU? Did you use an adapter?
 

brandon9455

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I can't see a manufacturer name all I can see is:
ATX Switching power supply
MODEL: ATX-500
 

brandon9455

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Apr 16, 2017
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I can't see a manufacturer name all I can see is:
ATX Switching power supply
MODEL: ATX-500
 

brandon9455

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Apr 16, 2017
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I did find was listed on eBay here it is
https://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwjUnZ6Su7HTAhXqne0KHc5jDRcYABACGgJkZw&ohost=www.google.co.uk&cid=CAESEeD2tq1pFkkFpkEzxjLIhhqC&sig=AOD64_1E9_SZnBshEL61GBThIEsDxeCElg&ctype=5&q=&ved=0ahUKEwi9vZmSu7HTAhUrLcAKHQvaDisQwg8IGw&adurl=
 
I'm afraid you need a new PSU. I'm sorry but the one you have seems to be bad and not suitable to power your new GPU. The PSU at this link is pretty horrible and not able to properly power a system with a dedicated graphic card that gets its power from the PCIe power cable and not the PCIe slot. Even if it somehow worked you risk burning your new GU with such a bad PSU.

Also you didn't answer my question about the power cables. Your GPU needs a PCIe power cable from the PSU. Does your PSU have such a cable? Did you plug it in the graphics card?
 
As stated, your PSU is too low of quality for a RX 480.

There is a very huge gap in quality between Power Supplies and there is no regulating bodies that require a PSU to output its stated load or have specific saftey protections in it. There is the 80+ certification but this in itself is ZERO indication of quality and is getting common for low end models to fake the certification.
A quality PSU can output its stated load and has many safeguards put in to protect your equipment. A low quality unit (like yours) cant handle outputing 50=60% of it sstated load and when it dies it fries the rest of your computer. There have even been many occurencies of these units sparking and causing fires.


Also as a side note, your 660k is going to bottleneck pretty hard with a 480. Due to this bottleneck you will see almost no performance increase vs a 470.
 
Solution

brandon9455

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No it didn't have a pcie cable so I had to go to maplins to get a adapter 1x4 -> 2x4 but I don't think is fit properly, from what I saw online was it a 2x4 or 2 2x2?
 
That PSU doesn't have a PCIe power cable because it can't properly support one without blowing up in flames. Also your GPU needs this power cable in order to boot. DO NOT USE AN ADAPTER ON THIS PSU. You risk killing your new GPU. You definitely need a new 550W PSU and you should get a good quality PSU not a cheap firecracker like what you have right now. You also need to protect your new investment (GPU). A good PSU that won't break the bank is this => https://www.newegg.com/Product/Product.aspx?Item=N82E16817139147

Good luck.
 

brandon9455

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I was going to order a corsair 750w PSU eventually, but I'll make that top priority. Thank you so much for your advice and saving me from blowing A lot of money of graphics card :)

If I can I'll try and order one tomorrow
 
High wattage number does not mean good PSU.
There is zero difference between poweirng a 350w setup with a 550w PSU vs a 750w psu besides costing you more money.
It is not like your motherboard will support Corssfire and your CPU cant even keep up with 1 480 let alone 2 and that is the only half reasonable argument to get a PSU with that large of excess headroom.

A Bronze/Gold Seasonic or Superflower PSU is what you should be looking for.
 

brandon9455

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First, I only have 1 480 XD

Second, I ordered a Corsair CSM 750W Semi Modular 80+ Gold Power Supply last night so il get that fitted when it comes.

Do you know if the Intel i5 7500k would be a better choice with this graphics card?
 

brandon9455

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UPDATE: I've installed my Corsair CX 750 and my 480 and it works fine :) and my god is no longer 20 on lowest quality
 


Yes a 6th/7th gen i5 would be singnificantly better. If getting 7th gen then go for 2xx serries motherboard not 1xx so you are garanteed to ship wiht compatible BIOS version.

The FM2 platform is very weak performance wise so even a 2 core 4 thread pentium g4560 is faster.

You will need CPU, Motherbaord and DDR4 memory in order to upgrade.
Will also need to do clean install of windows otherwise you will have massive instability issues if it even boots at all.