The (2) indicates that such RAM model might only work properly at intended speccs when using 2 slots; not 4.

Ignore the 8GB/16GB; these were just a few tested RAM models is all, nothing more.

To clarify something else I'd like to say, first what is the full motherboard model. If the Mobo is Gigabyte brand, what is also the Revision #, since this is important for their boards.

Originally posted by Bad 💀 Motha:

The (2) indicates that such RAM model might only work properly at intended speccs when using 2 slots; not 4.

Ignore the 8GB/16GB; these were just a few tested RAM models is all, nothing more.

To clarify something else I'd like to say, first what is the full motherboard model. And since it is Gigabyte, what is the Revision as well, since this is important for their boards.

Its B450 Steel Legend

BTW the SS/DS means Single Sided / Double Sided in terms of RAM design; nothing to do with SLOTS.

Again notice the 2 and 2/4; this is what is reference to slot config; using 2 vs verified working in all 4 as a 4x 8GB kit for example.

The board technically supports up to 128GB (32GB per slot)

However if you want to use RAM in all 4 slots, you might need to use kits that are made for 3200 or less.

If you need more RAM probably best way to go would be to buy a 2x 16GB or 2x 32GB DDR4-3200 kit.

Cpu model. Ram speed supported for that mainboard seems dependant on cpu.

picasso only goes up to 2933 but other cpus go up to 3200+

- AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*

Can use much more than 8gb ram in one slot. Look at the qvl list on the mainboards website. Qvl is just tested sets of memory. 128 gb max ram is supported but might not work well.

CPU does not matter on Ryzen. Only CPUs that are very RAM speed limited is Athlon series.

It mainly comes down the actual board and chipset and what all the BIOS allows for.

Even the lowest form of Ryzen 3 series CPU would have no problems with DDR4 3200 as long as the board supports it. Some 3600 kits might work, but not officially tested for the most part on most of those boards older the B550/X570

Originally posted by Bad 💀 Motha:

BTW the SS/DS means Single Sided / Double Sided in terms of RAM design; nothing to do with SLOTS.

Again notice the 2 and 2/4; this is what is reference to slot config; using 2 vs verified working in all 4 as a 4x 8GB kit for example.

The board technically supports up to 128GB (32GB per slot)

However if you want to use RAM in all 4 slots, you might need to use kits that are made for 3200 or less.

If you need more RAM probably best way to go would be to buy a 2x 16GB or 2x 32GB DDR4-3200 kit.

Also why some vendor support less speed then others is there a reason for that ?

You mean as far as RAM goes, or the Motherboard?

That's why there are different models of RAM and Motherboards available. They are not all equal. If that was the case there wouldn't be such a wide range of Motherboards.

Have you updated the BIOS? That can help add better support or even further features to what all is available in the BIOS settings.

Originally posted by Bad 💀 Motha:

You mean as far as RAM goes, or the Motherboard?

That's why there are different models of RAM and Motherboards available. They are not all equal. If that was the case there wouldn't be such a wide range of Motherboards.

So for example corsair RAM Speed Supported Speed for my motherboard shows 2666 is that mean it corsair for my motherboard cant support more then 2666 speed?

The RAM support sheet is not 100% accurate; those are just a few shared tests from the board maker.

Plus a RAM support sheet doesn't relfect changes; such as added RAM support in the future after release via the various BIOS updates that have occurred over time.

Any B450 Board with DDR4 3200 Support then technically pretty much any brand should work. Some boards are picky about certain RAM models because of a combination of timings, or the chips used; some more stable then others. As there is Samsung, Hynix and Micron for your actual chips that are onboard the RAM modules.

Corsair Vengeance DDR4 3000 or 3200 shouldn't be a problem.

Also look as Crucial (uses Micron chips) and also TeamGroup with their T-Forece Vulcan which is a good budget-friendly RAM model.

Overall I suggest updated the BIOS. Many older 370,350, 470, 450 boards had RAM issues on many models to where it was not stable with the RAM set above 2933/3000. That should be fixed via BIOS updates for the most part.

Originally posted by Bad 💀 Motha:

The RAM support sheet is not 100% accurate; those are just a few shared tests from the board maker.

Plus a RAM support sheet doesn't relfect changes; such as added RAM support in the future after release via the various BIOS updates that have occurred over time.

Any B450 Board with DDR4 3200 Support then technically pretty much any brand should work. Some boards are picky about certain RAM models because of a combination of timings, or the chips used; some more stable then others. As there is Samsung, Hynix and Micron for your actual chips that are onboard the RAM modules.

Corsair Vengeance DDR4 3000 or 3200 shouldn't be a problem.

Also look as Crucial (uses Micron chips) and also TeamGroup with their T-Forece Vulcan which is a good budget-friendly RAM model.

Overall I suggest updated the BIOS. Many older 370,350, 470, 450 boards had RAM issues on many models to where it was not stable with the RAM set above 2933/3000. That should be fixed via BIOS updates for the most part.

Cool thx for info, much appreciated.