ASRock Forums : Z170 Extreme4 where is my RAM https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 19 Jun 2026 15:37:59 +0000 Wed, 09 Nov 2016 03:59:35 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=3740 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Z170 Extreme4 where is my RAM : I contacted Asrock support team...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18815&title=z170-extreme4-where-is-my-ram#18815 Author: gvenko
Subject: 3740
Posted: 09 Nov 2016 at 3:59am

I contacted Asrock support team and here what they explain:

Thank you for contacting ASRock.


Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. 

For Windows® 64-bit OS with 64-bit CPU, there is no such limitation.

Please refer to the Product Specifications from the link below,

There is another method to modify the ?œTop Of Lower Usable Dram?? It can increase the usable memory.


Thanks!

All the best,
ASRock TSD

So the maximum is 2,7GB. Sad but nothing to do. Thanks to all for help but this case is solved.
]]> Wed, 09 Nov 2016 03:59:35 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18815&title=z170-extreme4-where-is-my-ram#18815 <![CDATA[Z170 Extreme4 where is my RAM : Mine here just now: ]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18769&title=z170-extreme4-where-is-my-ram#18769 Author: wardog
Subject: 3740
Posted: 08 Nov 2016 at 4:30am

Mine here just now:


]]> Tue, 08 Nov 2016 04:30:43 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18769&title=z170-extreme4-where-is-my-ram#18769 <![CDATA[Z170 Extreme4 where is my RAM : Using Windows own Snipping Tool,...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18768&title=z170-extreme4-where-is-my-ram#18768 Author: wardog
Subject: 3740
Posted: 08 Nov 2016 at 4:24am

Using Windows own Snipping Tool, show us a FULL pic of the Memory tab of Resource Monitor, resmon.exe.

That will show us where it's at/going/allotted to.
]]> Tue, 08 Nov 2016 04:24:48 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18768&title=z170-extreme4-where-is-my-ram#18768 <![CDATA[Z170 Extreme4 where is my RAM : once more about the Windows device...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18765&title=z170-extreme4-where-is-my-ram#18765 Author: wtuppa
Subject: 3740
Posted: 08 Nov 2016 at 4:04am

once more about the Windows device manager (view by resources).
I wanted to check, which memory ranges are used by which devices. That means this ranges are not available for RAM mapping (that's why you cannot have 4GB memory with 32bit operating system).
e.g. my PCI Bus uses a lot of memory range (for different devices), in total 1.35GB!!
My Ethernet Controller needs only 128KB. Due to some alignment, there are usually some holes in between, that cannot be used.
The HD530 Graphics  uses 256MB + 16MB (with a hole of 224MB) [part of the PCI space].
The mainboard resources uses even more memory in total [outside of PCI].
So my MB (also I use a 64bit Windows 7), the 32bit are can hold only a bit more than 2GB, since the low MB and everything above 0x89000000 (2,3GB) is reserved for some memory mapped I/O resources. for 64bit system, most memory is mapped above 4GB.

That is why I was asking for the memory ranges of devices...
I even think 2,7 GB may be already the maxmmimum that you can reach...
Regards
Walter


Edited by wtuppa - 08 Nov 2016 at 4:07am]]> Tue, 08 Nov 2016 04:04:20 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18765&title=z170-extreme4-where-is-my-ram#18765 <![CDATA[Z170 Extreme4 where is my RAM : Installed 16GB. I found some option...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18759&title=z170-extreme4-where-is-my-ram#18759 Author: gvenko
Subject: 3740
Posted: 08 Nov 2016 at 2:47am

Installed 16GB.
I found some option in BIOS with 3 choices: Dynamic, 2,5GB and 3,5GB. I leaved it on 3,5GB and Windows see 2,7GB. This is best I can do at this moment.
]]> Tue, 08 Nov 2016 02:47:57 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18759&title=z170-extreme4-where-is-my-ram#18759 <![CDATA[Z170 Extreme4 where is my RAM : From Wardog&#039;s link: Windows...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18715&title=z170-extreme4-where-is-my-ram#18715 Author: Xaltar
Subject: 3740
Posted: 07 Nov 2016 at 5:13pm

From Wardog's link:

Quote Windows 7 Starter Edition only supports 2 GB of installed memory

Is your copy of windows 7 activated? If not then it defaults to "Starter Edition" and that could well be the issue.
]]> Mon, 07 Nov 2016 17:13:37 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18715&title=z170-extreme4-where-is-my-ram#18715 <![CDATA[Z170 Extreme4 where is my RAM : Oh!. Ya know what may be happening...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18706&title=z170-extreme4-where-is-my-ram#18706 Author: wardog
Subject: 3740
Posted: 07 Nov 2016 at 4:56pm

Oh!. Ya know what may be happening here .........

https://support.microsoft.com/en-us/kb/978610

Read that link top to bottom, then check/follow at "Things to Try" and follows the instructions beginning at step 1 and on through 4

Quote
This problem may occur because the Maximum memory option is selected incorrectly. To fix this, follow these steps:

1. Click Start Start button, type msconfig in the Search programs and files box, and then click msconfig in the Programs list.
2. In the System Configuration window, click Advanced options on the Boot tab.
3. Click to clear the Maximum memory check box, and then click OK.
4. Restart the computer.



Let us know if that corrects the issue there you're having.







Edited by wardog - 07 Nov 2016 at 4:57pm]]> Mon, 07 Nov 2016 16:56:53 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18706&title=z170-extreme4-where-is-my-ram#18706 <![CDATA[Z170 Extreme4 where is my RAM : I don&#039;t remember where in...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18705&title=z170-extreme4-where-is-my-ram#18705 Author: wardog
Subject: 3740
Posted: 07 Nov 2016 at 4:51pm

I don't remember where in 7 it is but there's a tab that will display things like "PC Name" "OS Build" "Processor" and also "Installed RAM"

How much RAM does that screen/page say is installed in your computer?
]]> Mon, 07 Nov 2016 16:51:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18705&title=z170-extreme4-where-is-my-ram#18705 <![CDATA[Z170 Extreme4 where is my RAM : I have now the latest ver. 7 BIOS.The...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18696&title=z170-extreme4-where-is-my-ram#18696 Author: gvenko
Subject: 3740
Posted: 07 Nov 2016 at 4:00pm

 

I have now the latest ver. 7 BIOS.

The ram is GPR416GB2400C16DC (single sided) and I tryed all posible variants - single channel, dual channel, A1+B1, A2+B2 still the same.
 
I tryed with external video card and in that case usable ram is 2,34GB


Edited by gvenko - 07 Nov 2016 at 4:10pm]]> Mon, 07 Nov 2016 16:00:09 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18696&title=z170-extreme4-where-is-my-ram#18696 <![CDATA[Z170 Extreme4 where is my RAM : gvenko, we&#039;re here attempting...]]> https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18681&title=z170-extreme4-where-is-my-ram#18681 Author: wardog
Subject: 3740
Posted: 07 Nov 2016 at 1:17pm

gvenko, we're here attempting to assist you. Try and find/take a different tone with us please. You seem defensive and that's never a good tone to attract/invite others here to help.
]]> Mon, 07 Nov 2016 13:17:42 +0000 https://forum.asrock.com/forum_posts.asp?TID=3740&PID=18681&title=z170-extreme4-where-is-my-ram#18681