installed 16GB memory only work 7.95GB usable

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   Dear Aerius,

Greetings, this is ASRock TSD.

Regarding to this case, please plug the memory to A2/B2 slot and post the system into BIOS setup; load BIOS default setting via[F9] Key and observe if it can improve the usable memory under OS.

If the symptom still persists, please install another memory module to verify.

Thanks!

All the best,
ASRock TSD

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ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Online Points: 8787	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Topic: installed 16GB memory only work 7.95GB usable Posted: 17 Mar 2020 at 4:30pm
	Dear Aerius, Greetings, this is ASRock TSD. Regarding to this case, please plug the memory to A2/B2 slot and post the system into BIOS setup; load BIOS default setting via[F9] Key and observe if it can improve the usable memory under OS. If the symptom still persists, please install another memory module to verify. Thanks! All the best, ASRock TSD

ThreeDee Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 24 Jul 2019 Location: Billings,MT Status: Offline Points: 2396	Post Options Post Reply Quote ThreeDee Report Post Thanks(0) Quote Reply Posted: 17 Mar 2020 at 12:37pm
	memory installed in A2 & B2 slots?
	\|Ryzen 5 5900\|ASRock X570 Taichi-BIOS 4.60\|2x16GB HyperX Predator RGB 3200@3600 1:1 IF\|ASRock RX 6700XT\|2 x PCIe 4.0 M.2 Drives for OS & Games\|850 WTT Seasonic 80+ Titanium PSU\|Noctua NH-D15\|

Aerius Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Nov 2017 Status: Offline Points: 12	Post Options Post Reply Quote Aerius Report Post Thanks(0) Quote Reply Posted: 17 Mar 2020 at 12:06pm
	As title, clean win10 os and 2 8gb memory installed on B450M Steel Legend. Under os, installed memory display 16.0 GB but shows 7.95GB usable. How to fix this issue for more usable memory, please help! Regards.