Cannot use dual channel

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   I cannot let my board     B450M Steel Legend use as dual channel. It shows 16GB (2*8GB) but in single channel.
The same memory test on another system is working well, how come?

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Jabewack18111984 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 Jabewack18111984 Report Post Thanks(0) Quote Reply Topic: Cannot use dual channel Posted: 20 Mar 2020 at 2:17pm
	I cannot let my board B450M Steel Legend use as dual channel. It shows 16GB (2*8GB) but in single channel. The same memory test on another system is working well, how come?

ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8937	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Posted: 20 Mar 2020 at 2:39pm
	Dear Jabewack18111984, Greetings, this is ASRock TSD. To activate dual channel mode, it is required to install identical memory on A1/B1 or A2/B2 slot. According to your question, we provide some suggestions for verifying: 1. Please press [F9] to load BIOS to default settings and press [F10] save and exit. 2. Make sure both memory are functional, please install one memory to each DRAM slot by turns to verify. 3. If possible, please change another CPU to verify since memory controller is built-in CPU. 4. If possible, please change another RAM. Thanks! All the best, ASRock TSD