windows 10, 3.9gb ram usable out of 8gb

[george_110]

hello internet, my system has been running fine up until now, i upgrade it a month ago.

• 
  ryzen 5 1600
  gtx 1080
  msi b350 pro carbon
  8gb ddr4 3000mhz ram (running at 2133mhz)

windows tell me that i can only use 3.9gb of my 8gb ram, in the bios it states that i have 8gb install and windows also recognises this. so its not a hardware issue. ive been awake overnight for the last 12 hours trying to find a solution to this issues, heres a list of what ive tried to fix this;

• 
  running msconfig and changing the maximum memory (done this in around 7-8 times)
  changing the virtual memory in the advanced system settings tab (lost count)
  cleard cmos (about 10 times)
  this is my second clean install of windows within these 12 hours

i think im missing something of that list but i cant remember what it is
heres my system properties page;
OS Name Microsoft Windows 10 Home
Version 10.0.16299 Build 16299
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-N5UTUVL
System Manufacturer Micro-Star International Co., Ltd.
System Model MS-7B00
System Type x64-based PC
System SKU To be filled by O.E.M.
Processor AMD Ryzen 5 1600 Six-Core Processor, 3200 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 1.90, 30/01/2018
SMBIOS Version 2.8
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer Micro-Star International Co., Ltd
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Binding Not Possible
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United Kingdom
Hardware Abstraction Layer Version = "10.0.16299.98"
Username DESKTOP-N5UTUVL\George
Time Zone GMT Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 3.95 GB
Available Physical Memory 1.46 GB
Total Virtual Memory 4.17 GB
Available Virtual Memory 831 MB
Page File Space 225 MB
Page File C:\pagefile.sys
Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and the device is not InstantGo, Un-allowed DMA-capable bus/device(s) detected, TPM is not usable
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualisation Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes
hope that piece of info helps

 

[george_110]

3.9GB is the RAM limit on a 32Bit operating system. it sounds to me like you have a 32Bit version of windows installed.

Press Windows + I to open settings, then click system > about. On this page you should be able to see what type of OS you have installed.

If it is a 32bit OS the only option is to reinstall a 64 bit version of windows 10, if it is a 64 bit OS then it is a different issue.

sorry i missed that piece of information off, i have a x64 operating system. i have somehow managed to get the ram to 4gb now though, which is always a plus... still missing the other 4 though

 

[justin_time]

Are you using one or two sticks? Are they matching sticks?

 

[Pinhedd]

hello internet, my system has been running fine up until now, i upgrade it a month ago.

• 
  ryzen 5 1600
  gtx 1080
  msi b350 pro carbon
  8gb ddr4 3000mhz ram (running at 2133mhz)

windows tell me that i can only use 3.9gb of my 8gb ram, in the bios it states that i have 8gb install and windows also recognises this. so its not a hardware issue. ive been awake overnight for the last 12 hours trying to find a solution to this issues, heres a list of what ive tried to fix this;

• 
  running msconfig and changing the maximum memory (done this in around 7-8 times)
  changing the virtual memory in the advanced system settings tab (lost count)
  cleard cmos (about 10 times)
  this is my second clean install of windows within these 12 hours

i think im missing something of that list but i cant remember what it is
heres my system properties page;
OS Name Microsoft Windows 10 Home
Version 10.0.16299 Build 16299
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-N5UTUVL
System Manufacturer Micro-Star International Co., Ltd.
System Model MS-7B00
System Type x64-based PC
System SKU To be filled by O.E.M.
Processor AMD Ryzen 5 1600 Six-Core Processor, 3200 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 1.90, 30/01/2018
SMBIOS Version 2.8
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer Micro-Star International Co., Ltd
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Binding Not Possible
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United Kingdom
Hardware Abstraction Layer Version = "10.0.16299.98"
Username DESKTOP-N5UTUVL\George
Time Zone GMT Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 3.95 GB
Available Physical Memory 1.46 GB
Total Virtual Memory 4.17 GB
Available Virtual Memory 831 MB
Page File Space 225 MB
Page File C:\pagefile.sys
Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and the device is not InstantGo, Un-allowed DMA-capable bus/device(s) detected, TPM is not usable
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualisation Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes
hope that piece of info helps

A common culprit is an improperly seated DIMM, dirty contacts, or a faulty DIMM. Remove the DIMMs then clean the contacts and socket with electronic contact cleaner. Clean the area of any dust or debris then reinstall them. If one still does not work test them individually in each socket until a fault is identifiable.