bought new gpu but it's running slow

  griffin121 22:24 17 Feb 2014

Hello there. Just to let u know that my english is not best. I bought a new graphics card ATI AMD Radeon HD 7750 core edition DDR5 and it slowed my computer even when I'm not in any game,it's so slow on desktop.I installed whole new drivers,lowered core clock settings and memory clock settings but nothin,GPU temperature is 53C. It all happened when i restarted computer,first temperature was 26C and all was just fine but when I restarted computer It all went wrong.I don't know what is happening,I tryed to overclock CPU a bit but nothin changed.I sent card to computer servis where I bought it and they said that card is fine...I think it's bcs of my CPU... my specs: CPU AMD Athlon II X2 250 Regor 45nm Technology

RAM 4,00GB Dual-Channel DDR2 @ 401MHz (6-6-6-18)

Motherboard Gigabyte Technology Co., Ltd. GA-MA770-UD3 (Socket M2)

Graphics SyncMaster ([email protected]) 1024MB ATI AMD Radeon HD 7700 Series (XFX Pine Group)

Can anyone help me?

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