why cant we use 100% of the ram

[dragon864789]

hi one friend of mine keeps bothering me about why he cant use all his ram (its like 7.8/8gb)

and i been telling him that there is no problem but he is like there is and it suppost to be 8gb and im telling him that the reason why you cant use it all can very well be the same reason why you cant use all your ssd or hdd storage

cuz some needs to be for reserve and what not
but anyone out there know the reason why you can use all your ram ..so my friend can stop bugging me?

[Omega]

Depending on your hardware configuration some RAM might be allocated to other devices such as an integrated Intel HD or AMD Vega GPU.

The allocated amount will be subtracted from the total in the Task Manager.

[vadim]

All modern OSes use all available RAM. For cache and disk buffers. Unused RAM - wasted RAM.

[м]

https://www.quora.com/How-do-you-use-100-of-RAM-in-Windows-10-I-noticed-it-only-uses-32-of-100-total-RAM-always-in-the-task-manager

Publicado originalmente por Alex Manchester, IT Manager:

All that to say that your computer really shouldn’t ever be at 100% RAM utilization. If it is, that means that your workbench is full. You probably have way too much stuff open and your computer is struggling to keep up. In extreme cases your computer will start “paging” which means it’s using part of the hard drive as working memory which is the equivalent of going back and forth to the toolbox every time you need something. It wastes a lot of time and slows your work considerably.

[dragon864789]

Publicado originalmente por м:

https://www.quora.com/How-do-you-use-100-of-RAM-in-Windows-10-I-noticed-it-only-uses-32-of-100-total-RAM-always-in-the-task-manager

Publicado originalmente por Alex Manchester, IT Manager:

All that to say that your computer really shouldn’t ever be at 100% RAM utilization. If it is, that means that your workbench is full. You probably have way too much stuff open and your computer is struggling to keep up. In extreme cases your computer will start “paging” which means it’s using part of the hard drive as working memory which is the equivalent of going back and forth to the toolbox every time you need something. It wastes a lot of time and slows your work considerably.

i mean all the ram being usable,,and not like 7.47 out of 8

[vadim]

Part of the RAM is always reserved for various purposes. Starting from the iGPU memory to the part of the BIOS that implements system management mode and continues to be used even after the OS boots.

[Illusion of Progress]

You can check Resource Monitor (if using Windows) to see how much RAM is reserved for hardware purposes.

Also, sometimes, it's just... inconsistent like that. My laptop had 6 GB RAM, and is simply said it had 6 GB. I upgraded it to 16 GB and now it says 16 GB (15.9 GB usable). There's nothing wrong with it; sometimes some systems just show that latter part.

[м]

Publicado originalmente por dragon864789:

i mean all the ram being usable,,and not like 7.47 out of 8

well, if you would bother reading, you can't use 100% of it because that would make your computer super slow and basically unusable.

[Bing Chilling]

i'v always wondered why my system takes 100mb (shows 63.9gb available)
my cpu is an F variant (no IGPU)
so idk why it needs 100mb
but i don't really care all that much
it's been like that on every system iv built
always 100mb reserved.

[Illusion of Progress]

Publicado originalmente por StoneYoda:

i'v always wondered why my system takes 100mb (shows 63.9gb available)
my cpu is an F variant (no IGPU)
so idk why it needs 100mb
but i don't really care all that much
it's been like that on every system iv built
always 100mb reserved.

My current system (also 64 GB) shows 85 MB as hardware reserved, and just shows "64.0 GB" (no 63.9 GB usable). My prior system with 16 GB also simply showed that, but I think it was reserving a bit less as well. Whether it shows that part about less being usable depends upon how much is reserved, and in our case, only 15 MB separates it, so whether or not that is showing is no real difference.

[_I_]

are you running windows in a vm or other bootloader?

[A&A]

Everybody have VRAM (Virtual RAM) "Cached RAM" (Using your disk drives like RAM)
If you run out of Ram your system crash

[_I_]

vram is ram on the gpu (video ram)
if using an igpu it uses shared (system ram as vram)

[A&A]

Publicado originalmente por _I_:

vram is ram on the gpu (video ram)
if using an igpu it uses shared (system ram as vram)

There are 2 values ​​for VRAMs
VRAM is
GPU RAM
Or
Virtual RAM or " cached RAM "
Cached Ram is using disk space but is very slow

[_I_]

virtual ram is never referred to as vram
its paged or virtual memory

virtual ram is not ram, its a file on a drive

[plat]

This is one of those subjects you can google and come up with the answer very quickly. A small portion is set aside as "hardware reserved." It's a similar principle to your disk not able to be "fully" utilized--like mine is 500 GB capacity but only 465 GB can be used by me.

Viz--RAM: I noticed when I upgraded from 16 GB to 32 GB, I discovered sometime later that I "lost" about 4 GB of disk space and didn't make the connection, I thought it was due to a cumulative update but didn't clean up properly. I looked all over the place and couldn't find those GBs. I even installed a software--TreeSize--to help find them. Nope.

Then I came across something in an article about the pagefile. I looked and mine was around 6 GB, aha! Now, one should ordinarily let Windows handle the pagefile but this just seemed absurdly huge to me. So, I whittled it down to 2048 MB and regained my lost GBs immediately.