Windows 10: task manager shows less ram than installed

I'm using windows 10 . My installed ram is 4096showing in resource monitor. my task manager used to show 3.9gb ram. but after updating windows 10 updatefrom settings task manager is not showing 3.9gb its showing 2.7 gb. I again checked ResMon and it shows 4096mb installed. help me.. thanks in advance

:)

 

Ram on Task manager





1* - You have 2 RAM of 4GB

2* - Task Manager shows you have 8GB

3* - 3.8GB(in use) + 3.8GB(cached) + 0.624MB(Hardware Reserved) + 0.230MB(Pool) = 8GB(approx. more)

Note:

• 1GB = 1024MB
• It seems you have more than 8GB RAM
• You might be using any RAM Boost Software

 

XMP Profile 1600MHZ RAM, Task Manager Shows 1066

I'm sure it's a bug with task manager. Someone else had a similar issue and someone said it has something to do with Task Manager using a 100 FSB to calculate the RAM speed, are you running a higher FSB?

Someone else got a response from Microsoft, so just ignore what Task Manger is reporting.

I contacted MS Support through the chat feature in windows 10 and they informed me its a on going issue with the task manager, some bios's dont like to work with task manager therefore it reports the default ram speed from the ram module JEDEC information. And as this is read only the XMP profile does not get handed to task manager, the guy also said this will hopfully be fixed in the next major update in windows which is this summer. I asked him how, he said the update will allow task manager to read the XMP profiles as that currently is only based within the bios and if windows task manager has access to the xmp profile it will instantly read it like some motherboards whereas certain motherboards only pick up the default ram speed through the jedec profile and ignore the XMP profile. He also said the only way round this is to use a 3rd party software to confirm your ram speed is accurate. I used speccy, my bios and cpu z which show the correct speed.​

 

Ram on Task manager

• May you please attach a screenshot of Task Manager?
• You may visit
  Lenovo Support - "Support Home Page"
• Try to detect your system and check whether you have RAM 4GB/8GB