I have 4GB RAM installed in my computer but it says that only 2.45 GB is usable. I want to use whole of 4GB of RAM. How can I do it? - Quora
![I HAVE ACER ASPIRE 3 A314-22-R4U5, 8(4+4)5.94 GB OF RAM USABLE HARDWARE RESERVED IS 2.1GB HOW TO FIX — Acer Community I HAVE ACER ASPIRE 3 A314-22-R4U5, 8(4+4)5.94 GB OF RAM USABLE HARDWARE RESERVED IS 2.1GB HOW TO FIX — Acer Community](https://us.v-cdn.net/6029997/uploads/editor/gt/bxb4x221snlt.png)
I HAVE ACER ASPIRE 3 A314-22-R4U5, 8(4+4)5.94 GB OF RAM USABLE HARDWARE RESERVED IS 2.1GB HOW TO FIX — Acer Community
![How to fix "GB usable" RAM problem under 64-bit Windows (set PCI-E Graphics Card as default in BIOS) - YouTube How to fix "GB usable" RAM problem under 64-bit Windows (set PCI-E Graphics Card as default in BIOS) - YouTube](https://i.ytimg.com/vi/4HbNiCeTU8s/hqdefault.jpg)