F5F Stay Refreshed Hardware Desktop Yes, it is acceptable to combine 2 * 8Gb with 1 * 16Gb RAM in a DDR4 configuration.

Yes, it is acceptable to combine 2 * 8Gb with 1 * 16Gb RAM in a DDR4 configuration.

Yes, it is acceptable to combine 2 * 8Gb with 1 * 16Gb RAM in a DDR4 configuration.

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idobd
Junior Member
32
09-20-2019, 04:44 AM
#1
Hello, I'm looking to upgrade to 32GB of RAM. I currently have a 16GB kit with 2666MHz CS16. The issue is that I can't locate the exact model to match. I've considered buying two 8GB kits to ensure compatibility. Is it acceptable to pair RAM kits of different sizes? For example: - Two 8GB kits at 3200MHz CS16 DDR4 (dual channel) - One 16GB kit at 2666MHz CS16 DDR4 CPU: Ryzen 5 3600 @ 4.0GHz with MSI B450M Pro VHDX Max GPU, PSU: 600W Gold.
I
idobd
09-20-2019, 04:44 AM #1

Hello, I'm looking to upgrade to 32GB of RAM. I currently have a 16GB kit with 2666MHz CS16. The issue is that I can't locate the exact model to match. I've considered buying two 8GB kits to ensure compatibility. Is it acceptable to pair RAM kits of different sizes? For example: - Two 8GB kits at 3200MHz CS16 DDR4 (dual channel) - One 16GB kit at 2666MHz CS16 DDR4 CPU: Ryzen 5 3600 @ 4.0GHz with MSI B450M Pro VHDX Max GPU, PSU: 600W Gold.

B
bearnike
Junior Member
18
09-20-2019, 05:27 AM
#2
It's feasible and I managed it. However, I made sure to select RAM with nearly identical specs. With what you bought, you'd need to operate the RAM at the minimum speed and timing (2666 CL16). Even then, it might not function properly since timing factors go beyond just CAS latency. If it does work, it will still be less than ideal because most of your RAM would run in single-channel mode.
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bearnike
09-20-2019, 05:27 AM #2

It's feasible and I managed it. However, I made sure to select RAM with nearly identical specs. With what you bought, you'd need to operate the RAM at the minimum speed and timing (2666 CL16). Even then, it might not function properly since timing factors go beyond just CAS latency. If it does work, it will still be less than ideal because most of your RAM would run in single-channel mode.

L
Last_Starman
Junior Member
18
09-20-2019, 08:18 AM
#3
Technically yes, but you'll be operating in a single channel. It might be better to obtain an additional 2x8 kit.
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Last_Starman
09-20-2019, 08:18 AM #3

Technically yes, but you'll be operating in a single channel. It might be better to obtain an additional 2x8 kit.

S
Seabreeze1998
Member
57
09-20-2019, 04:18 PM
#4
Only one channel available for the single 16Gb kit.
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Seabreeze1998
09-20-2019, 04:18 PM #4

Only one channel available for the single 16Gb kit.

M
ManMallow
Member
223
09-20-2019, 04:57 PM
#5
Based on my observations, the answer varies. Some users report consistent performance, while others note differences depending on their specific motherboard configuration.
M
ManMallow
09-20-2019, 04:57 PM #5

Based on my observations, the answer varies. Some users report consistent performance, while others note differences depending on their specific motherboard configuration.