32GB RAM reserved for hardware on Windows 10 pro (64bit)
1
I just put my new tower PC together, but windows can use only half of the RAM (32GB of 64GB):
- Motherboard: AB350-GAMING 3
- CPU: AMD Ryzen 7
- 4 RAM Slots with 16GB each
- Windows 10 Pro (64bit) with properly activated & valid licence
This is what Windows shows me:
Task Manager:
Resource Monitor:
msconfig:
I tried changing "max memory" to this (it is automatically filled in when i activate the checkbox, which seems correct for 64GB in MB):
But when i press OK it changes to 256 (before closing). Also when using the up/down controls 256 is maximum. When re-opening the dialog the numer is set to 0 no matter what i left it at.
bcdedit:
I tried setting maxmem using bcdedit, but it did not accept it:
BIOS:
I updated the BIOS from version F10 to F25 (latest):
Supported RAM:
- Supprtorted RAM Windows 10 Pro 64bit: 2TB
- https://docs.microsoft.com/en-us/windows/desktop/memory/memory-limits-for-windows-releases#physical-memory-limits-windows-10
Other actions:
- Windows update is up-to-date
- I updated all drivers using
Driver Easy
Other "solutions" i found on the internet:
- Running
sfc- did that - all ok - Running another windows' system check & correct tool (forgot the name) - but also all ok
- Disable page-file - i tried it - didn't work. (I also know it is not advised for other reasons).
- Disable or enable (instructions were not clear) Memory Remapping in BIOS - didn't find any such option.
- Disable Shared Memory (shared with OnBoard Graphics Card) in BIOS - no such option. Also i am using an "external" graphics-card, not the onboard one.
- Changing RAM Slots (when using just 2 of them) - i use all 4 slots - seems pointless.
- Swapping RAM around in the slots - didn't try - seems pointless - i have 4 identical RAM sticks. Why should it make any difference?
- Adjusting RAM speed multiplier and/or voltage - didn't go into this. All is set to its defaults "auto" - 2400MHZ - found one note, that too high values (above 3000MHZ) can make problems with 4 slots being used. I don't think that's it either. My RAM is recognized, but not used.
I want to use the whole RAM:
So how to fix this?
windows-10 memory
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
add a comment |
1
I just put my new tower PC together, but windows can use only half of the RAM (32GB of 64GB):
- Motherboard: AB350-GAMING 3
- CPU: AMD Ryzen 7
- 4 RAM Slots with 16GB each
- Windows 10 Pro (64bit) with properly activated & valid licence
This is what Windows shows me:
Task Manager:
Resource Monitor:
msconfig:
I tried changing "max memory" to this (it is automatically filled in when i activate the checkbox, which seems correct for 64GB in MB):
But when i press OK it changes to 256 (before closing). Also when using the up/down controls 256 is maximum. When re-opening the dialog the numer is set to 0 no matter what i left it at.
bcdedit:
I tried setting maxmem using bcdedit, but it did not accept it:
BIOS:
I updated the BIOS from version F10 to F25 (latest):
Supported RAM:
- Supprtorted RAM Windows 10 Pro 64bit: 2TB
- https://docs.microsoft.com/en-us/windows/desktop/memory/memory-limits-for-windows-releases#physical-memory-limits-windows-10
Other actions:
- Windows update is up-to-date
- I updated all drivers using
Driver Easy
Other "solutions" i found on the internet:
- Running
sfc- did that - all ok - Running another windows' system check & correct tool (forgot the name) - but also all ok
- Disable page-file - i tried it - didn't work. (I also know it is not advised for other reasons).
- Disable or enable (instructions were not clear) Memory Remapping in BIOS - didn't find any such option.
- Disable Shared Memory (shared with OnBoard Graphics Card) in BIOS - no such option. Also i am using an "external" graphics-card, not the onboard one.
- Changing RAM Slots (when using just 2 of them) - i use all 4 slots - seems pointless.
- Swapping RAM around in the slots - didn't try - seems pointless - i have 4 identical RAM sticks. Why should it make any difference?
- Adjusting RAM speed multiplier and/or voltage - didn't go into this. All is set to its defaults "auto" - 2400MHZ - found one note, that too high values (above 3000MHZ) can make problems with 4 slots being used. I don't think that's it either. My RAM is recognized, but not used.
I want to use the whole RAM:
So how to fix this?
windows-10 memory
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
2
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55
add a comment |
1
1
1
I just put my new tower PC together, but windows can use only half of the RAM (32GB of 64GB):
- Motherboard: AB350-GAMING 3
- CPU: AMD Ryzen 7
- 4 RAM Slots with 16GB each
- Windows 10 Pro (64bit) with properly activated & valid licence
This is what Windows shows me:
Task Manager:
Resource Monitor:
msconfig:
I tried changing "max memory" to this (it is automatically filled in when i activate the checkbox, which seems correct for 64GB in MB):
But when i press OK it changes to 256 (before closing). Also when using the up/down controls 256 is maximum. When re-opening the dialog the numer is set to 0 no matter what i left it at.
bcdedit:
I tried setting maxmem using bcdedit, but it did not accept it:
BIOS:
I updated the BIOS from version F10 to F25 (latest):
Supported RAM:
- Supprtorted RAM Windows 10 Pro 64bit: 2TB
- https://docs.microsoft.com/en-us/windows/desktop/memory/memory-limits-for-windows-releases#physical-memory-limits-windows-10
Other actions:
- Windows update is up-to-date
- I updated all drivers using
Driver Easy
Other "solutions" i found on the internet:
- Running
sfc- did that - all ok - Running another windows' system check & correct tool (forgot the name) - but also all ok
- Disable page-file - i tried it - didn't work. (I also know it is not advised for other reasons).
- Disable or enable (instructions were not clear) Memory Remapping in BIOS - didn't find any such option.
- Disable Shared Memory (shared with OnBoard Graphics Card) in BIOS - no such option. Also i am using an "external" graphics-card, not the onboard one.
- Changing RAM Slots (when using just 2 of them) - i use all 4 slots - seems pointless.
- Swapping RAM around in the slots - didn't try - seems pointless - i have 4 identical RAM sticks. Why should it make any difference?
- Adjusting RAM speed multiplier and/or voltage - didn't go into this. All is set to its defaults "auto" - 2400MHZ - found one note, that too high values (above 3000MHZ) can make problems with 4 slots being used. I don't think that's it either. My RAM is recognized, but not used.
I want to use the whole RAM:
So how to fix this?
windows-10 memory
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
I just put my new tower PC together, but windows can use only half of the RAM (32GB of 64GB):
- Motherboard: AB350-GAMING 3
- CPU: AMD Ryzen 7
- 4 RAM Slots with 16GB each
- Windows 10 Pro (64bit) with properly activated & valid licence
This is what Windows shows me:
Task Manager:
Resource Monitor:
msconfig:
I tried changing "max memory" to this (it is automatically filled in when i activate the checkbox, which seems correct for 64GB in MB):
But when i press OK it changes to 256 (before closing). Also when using the up/down controls 256 is maximum. When re-opening the dialog the numer is set to 0 no matter what i left it at.
bcdedit:
I tried setting maxmem using bcdedit, but it did not accept it:
BIOS:
I updated the BIOS from version F10 to F25 (latest):
Supported RAM:
- Supprtorted RAM Windows 10 Pro 64bit: 2TB
- https://docs.microsoft.com/en-us/windows/desktop/memory/memory-limits-for-windows-releases#physical-memory-limits-windows-10
Other actions:
- Windows update is up-to-date
- I updated all drivers using
Driver Easy
Other "solutions" i found on the internet:
- Running
sfc- did that - all ok - Running another windows' system check & correct tool (forgot the name) - but also all ok
- Disable page-file - i tried it - didn't work. (I also know it is not advised for other reasons).
- Disable or enable (instructions were not clear) Memory Remapping in BIOS - didn't find any such option.
- Disable Shared Memory (shared with OnBoard Graphics Card) in BIOS - no such option. Also i am using an "external" graphics-card, not the onboard one.
- Changing RAM Slots (when using just 2 of them) - i use all 4 slots - seems pointless.
- Swapping RAM around in the slots - didn't try - seems pointless - i have 4 identical RAM sticks. Why should it make any difference?
- Adjusting RAM speed multiplier and/or voltage - didn't go into this. All is set to its defaults "auto" - 2400MHZ - found one note, that too high values (above 3000MHZ) can make problems with 4 slots being used. I don't think that's it either. My RAM is recognized, but not used.
I want to use the whole RAM:
So how to fix this?
windows-10 memory
windows-10 memory
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
edited Jan 23 at 16:23
Frederic Leitenberger
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
asked Jan 23 at 16:14
Frederic LeitenbergerFrederic Leitenberger
1064
1064
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
2
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55
add a comment |
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
2
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
2
2
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "3"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1397539%2f32gb-ram-reserved-for-hardware-on-windows-10-pro-64bit%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Super User!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1397539%2f32gb-ram-reserved-for-hardware-on-windows-10-pro-64bit%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Dupe of 64 bit - Why is all my extra RAM marked as "hardware reserved" in Windows 7? - Super User?
– DavidPostill♦
Jan 23 at 16:28
2
Possible duplicate of Why is all my extra RAM marked as "hardware reserved" in Windows 7?
– ivan_pozdeev
Jan 23 at 16:37
I would try slowing the memory down or disabling XMP as this page seems to suggest that the dual rank memory you have will actually need to run at a slower speed. Next try swapping slots, I've seen some motherboards able to detect memory in a slot by reading the SPD chip but because it wasn't quite sat properly it wasn't making contact and the memory failed some test and the channel got disabled. Any chance of showing the "Memory" tab in CPU-z?
– Mokubai♦
Jan 23 at 17:35
The PC is dead right now - does not even go into BIOS anymore only the fans are running with black screen - once i fixed this, i will add CPU-Z Memory tab as requested. - i tried setting memory speed to 1200MHZ as shown in Speccy, but the lowest value the BIOS allows is 1333MHZ. Since i was puzzled by this i did not actually try this configuration. I then assumed that one channel runs at 2400MHZ but each RAM chip at 1200MHZ, which made sense to me. But i tried with and without XMP. No change.
– Frederic Leitenberger
Jan 24 at 21:48
I tried to find the mentioned information on "this page". Do you mean this? "4 DIMMs DDR4-1866" - does this mean i have to go down to 1866MHZ for them to work?
– Frederic Leitenberger
Jan 24 at 21:55