Why is only 4gb of ram usable when i have eight

[colecrowspear11]

i have 8 gb of ram on my computer but only 4gb is usable. I have 64 bit windows and have tried many things but nothing will work
https://cdn.discordapp.com/attachments/381605385640869889/397252805259165726/unknown.png I'm to lazy to make a link in a browser but if you can tell me whats wrong that would be very appreciative.

 

[jdog2pt0]

Do you have a dedicated graphics card, or is it integrated into the processor/motherboard? If it's integrated into the computer, that has likely been reserved for your video card. There is usually a setting in the BIOS where you can see that information.

If you have a dedicated card, disable any integrated graphics in the BIOS (if present), and also try flashing a newer BIOS version, sometimes that fixes it.

 

[Colif]

what does the performance tab of task manager show your ram as? How much is hardware reserved?

Have you run memtest86 on the ram sticks? 1 stick at a time, any score other than 0 is wrong. If you get 1 error the stick needs to be removed/replaced

is it 2x 4gb sticks or 1 8gb stick?
have you checked the max memory check box isn't ticked in the advanced options of the boot tab in msconfig? IT should be blank

 

[velocityg4]

Try this fix to manually change the amount recognized.
https://helpdeskgeek.com/windows-7/fix-the-maximum-amount-of-memory-usable-by-windows-7-64-bit/