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Brand new custom built computer is slow

Last response: in Systems
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July 29, 2013 3:17:01 PM

So two days ago i spent a tonne of money on a new computer to build! it was up and running Saturday night, getting great speeds overall! I bench marked on minecraft at about 180-220 FPS and it was great, then the next day it suddenly was at 70-120 FPS.

I had changed no software settings but it had just randomly dropped, i checked all my settings on Minecraft and they were all right, java was the latest addition.. it was all right.. but it just wasn't working! So i did a full re-install on windows 7, and it was exactly the same at about 70-120 FPS?

Does anyone have any idea what is wrong? this is the first time i built my own computer and i just need help getting it to it's highest performance!

SPECS:

Processor: AMD FX6300 Black Edition 6 Core (3.5/4.1GHz)
Graphics Card: MSI AMD R7870 2GB DDR5 PCI-E
RAM: Corsair Vengeance 8GB (2x4GB) DDR3 1600 Mhz
Case: CiT Vantage Type-R Gaming Case
Power Supply: Corsair CX-600 Watts
HDD: 1TB 7200 rpm
Motherboard: Asus M5A78L-M/USB3 Motherboard (Socket AM3+, Up to 16GB DDR3, USB 3.0, uATX)
July 29, 2013 3:19:45 PM

You don't need more than 60fps, unless you have a 120hz monitor, so it doesn't matter.

What fps are you getting in other games?
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July 29, 2013 3:20:25 PM

Well i don't want to have spent £560 on a computer, and not get it's full performance
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July 29, 2013 3:23:11 PM

If you get 60fps, it doesn't matter, mate. Less than 60fps would be a concern.

You won't get it's "full performance" on Minecraft anyway - it's barely a taxing game. Try Battlefield 3 - then you'll be getting it's "full performance".

On Minecraft, go to settings - video settings - use VSync - set to "off". Now see if your fps changes. If so, great. But V-sync should always be enabled if you get more than 60fps anyway.
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July 29, 2013 3:30:16 PM

that's not the point though, why has my computer managed to drop 100FPS in a day?
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July 29, 2013 3:33:51 PM

Probably because it doesn't need to render more than 60 frames?

For future reference, 60fps is all you need. If you get more than that, then you need to enable V-Sync.

V-Sync not only eliminates "screen-tearing", but it also reduces the unnecessary strain on the GPU.
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July 29, 2013 3:49:32 PM

Okay that is fair enough, but why did it originally play at such a higher rate and then drop?
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July 29, 2013 4:42:28 PM

Minecraft FPS changes hugely depending on the map, terrain weather and if your on a server or not.

Try the optifine mod and tell us results then.
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July 30, 2013 5:21:38 AM

How can i get the best out of my computer which i built though? i updated the drivers, is there anything else?
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