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64 bit windows doesn't allow to use more than 4gb of ram

RosBoss
By RosBoss
in Operating Systems
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My computer has 8 gb of ram but my 64 bit windows only shows 6 and allows to use 4. When i restart my computer the problem is fixed but my computer doesn't boot very fast. Any help please?

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SANIK. The fastest PC alive. My main PC. CPU AMD Ryzen 5 1600 @3.8 GHz | Mobo MSI B350M Gaming Pro | RAM 8GB Crucial Ballistix Elite 2666MHz | GPU GIGABYTE GTX 970 4GB (GV-N970TTOC-4GD) | Case Zalman Z3 Plus Black | SSD Kingston HyperX Fury 2.5'' 120GB SATA3 | HDD Toshiba P300 1TB 7200RPM | PSU Fortron FSP500-60HHN | Monitor Philips 226VL (1920x1080@60Hz) | Keyboard Logitech G19s | Mouse Logitech G400s | Headset Gamescom 780 7.1 | OS Windows 10 Pro 64-bit

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My computer has 8 gb of ram but my 64 bit windows only shows 6 and allows to use 4. When i restart my computer the problem is fixed but my computer doesn't boot very fast. Any help please?

What's the rest of your hardware?

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So you start your pc and it says 6 and allows 4 and then you restart it and it shows 8 and allows 8?

And then you restart it again and problem is back???

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My computer has 8 gb of ram but my 64 bit windows only shows 6 and allows to use 4. When i restart my computer the problem is fixed but my computer doesn't boot very fast. Any help please?

Funny thing is, you can use more than 4GB+ with a 32bit OS if you patch the kernel.

Full system specs would be nice, and are you sure you don't have a on board GPU that's using 2GB?

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I have amd fx 6300 CPU
Motherboard is Gigabyte GA-970A-DS3
GPU powercolor radeon hd 7850 1gb
and 8gb 1600 MHz ram

 

 

So you start your pc and it says 6 and allows 4 and then you restart it and it shows 8 and allows 8?

And then you restart it again and problem is back???

 When i first boot up its 6gb and 4 allowed. When i restart it just shows 8 gb ram. I'm not sure if i restart 3rd time the problem is back but i had the problem yesterday, restarted and it was fine. Now today i have it back.

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SANIK. The fastest PC alive. My main PC. CPU AMD Ryzen 5 1600 @3.8 GHz | Mobo MSI B350M Gaming Pro | RAM 8GB Crucial Ballistix Elite 2666MHz | GPU GIGABYTE GTX 970 4GB (GV-N970TTOC-4GD) | Case Zalman Z3 Plus Black | SSD Kingston HyperX Fury 2.5'' 120GB SATA3 | HDD Toshiba P300 1TB 7200RPM | PSU Fortron FSP500-60HHN | Monitor Philips 226VL (1920x1080@60Hz) | Keyboard Logitech G19s | Mouse Logitech G400s | Headset Gamescom 780 7.1 | OS Windows 10 Pro 64-bit

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SREVER. Mainly a CSGO and TS3 server. Sometimes used for gaming. CPU Intel Xeon E5430 | Mobo ECS-G31T-M7 | RAM 2x 2GB DDR2 | GPU Nvidia GTX 550ti 1GB GDDR5 | Case Shitty | HDD 1 Toshiba 500GB SATA | HDD 2 Random 80GB SATA | PSU Random 420w | OS Ubuntu 16.04

 

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What is your RAM configuration? How many sticks?

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What is your RAM configuration? How many sticks?

2 ram sticks. Just saying that when my windows says i have 6gb and 4 in use CPU-Z still shows that i have 8gb

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SANIK. The fastest PC alive. My main PC. CPU AMD Ryzen 5 1600 @3.8 GHz | Mobo MSI B350M Gaming Pro | RAM 8GB Crucial Ballistix Elite 2666MHz | GPU GIGABYTE GTX 970 4GB (GV-N970TTOC-4GD) | Case Zalman Z3 Plus Black | SSD Kingston HyperX Fury 2.5'' 120GB SATA3 | HDD Toshiba P300 1TB 7200RPM | PSU Fortron FSP500-60HHN | Monitor Philips 226VL (1920x1080@60Hz) | Keyboard Logitech G19s | Mouse Logitech G400s | Headset Gamescom 780 7.1 | OS Windows 10 Pro 64-bit

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SREVER. Mainly a CSGO and TS3 server. Sometimes used for gaming. CPU Intel Xeon E5430 | Mobo ECS-G31T-M7 | RAM 2x 2GB DDR2 | GPU Nvidia GTX 550ti 1GB GDDR5 | Case Shitty | HDD 1 Toshiba 500GB SATA | HDD 2 Random 80GB SATA | PSU Random 420w | OS Ubuntu 16.04

 

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@RosBoss If you run resmon (Resource Monitor) (type into WIndows Search) and look at the memory tab, is the missing memory specifically "Hardware Reserved"?

 

Thus you need Memory Remapping in the BIOS enabled.

but usually it's the ABOVE remapping disabled/not supported that is the cause.

 

Alternatively (Swap ram sticks around, in case of a bug)

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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Resmon shows this: http://gyazo.com/7c644c9420c50703ecf72587ef28cb9c as you can see it's 6 gb installed.

I restarted my computer and now it shows this: http://gyazo.com/9e3addca3bc203fc77f4dda3dcf59a68

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SANIK. The fastest PC alive. My main PC. CPU AMD Ryzen 5 1600 @3.8 GHz | Mobo MSI B350M Gaming Pro | RAM 8GB Crucial Ballistix Elite 2666MHz | GPU GIGABYTE GTX 970 4GB (GV-N970TTOC-4GD) | Case Zalman Z3 Plus Black | SSD Kingston HyperX Fury 2.5'' 120GB SATA3 | HDD Toshiba P300 1TB 7200RPM | PSU Fortron FSP500-60HHN | Monitor Philips 226VL (1920x1080@60Hz) | Keyboard Logitech G19s | Mouse Logitech G400s | Headset Gamescom 780 7.1 | OS Windows 10 Pro 64-bit

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SREVER. Mainly a CSGO and TS3 server. Sometimes used for gaming. CPU Intel Xeon E5430 | Mobo ECS-G31T-M7 | RAM 2x 2GB DDR2 | GPU Nvidia GTX 550ti 1GB GDDR5 | Case Shitty | HDD 1 Toshiba 500GB SATA | HDD 2 Random 80GB SATA | PSU Random 420w | OS Ubuntu 16.04

 

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@RosBoss try running memtest86 and see if it fins any errors. Also try updating the BIOS on your motherboard and swapping the DIMMs.

LTT's unofficial Windows activation expert.
 

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Is there a MEMORY REMAPPING type function in your System BIOS?

Usually this is the problem... not being enabled.

Some motherboards do it automatically & don't allow you to change it.

                   

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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