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I just upgraded my motherboard and CPU and after re-installing Windows 7 64-bit my computer is not using it’s full 4GB but only 1.93GB usable.
- Motherboard: ASUS ROG CROSSBLADE RANGER FM2+ AMD A88X
- CPU: AMD A8-7600 Kaveri Quad-Core 3.1 GHz Socket FM2+
- RAM: 2x2 GB = 4 GB
- GPU: GTX 650