Compability problem of Vengeance 4x16 Gb DDR5 6000MHz with Asus B650E-F motherboard

[mordavia]

Is there a way to use all the sticks at the same time? What must be the timings and voltage values? I get yellow DRAM warning light and can not get into BIOS.

[LeDoyen]

I'll answer a bit besides the point, but the faster the speed gets, the better off you are using only two sticks. The CPU memory controller, on intel or AMD struggle a lot less with only two sticks to manage. A 2x32gb kit will always be easier to drive than 4x16gb one.

If you can't get into bios you can't tweak the voltages anyway. The motherboard doesn't give you a memory error and boot cleanly at 4800mhz ?

If you can't get in bios at all try removing the sticks in A1 and B1 slots,  see if that can get you up and running. The "not being able to get to bios" bit makes me worry there may be something wrong with a stick. Usually if the overclock fails, the mobo just shoots you an alarm and deactivates EXPO, then you boot at the base DDR5 speed at 4800.

[mordavia]

1 hour ago, LeDoyen said:

I'll answer a bit besides the point, but the faster the speed gets, the better off you are using only two sticks. The CPU memory controller, on intel or AMD struggle a lot less with only two sticks to manage. A 2x32gb kit will always be easier to drive than 4x16gb one.

If you can't get into bios you can't tweak the voltages anyway. The motherboard doesn't give you a memory error and boot cleanly at 4800mhz ?

If you can't get in bios at all try removing the sticks in A1 and B1 slots,  see if that can get you up and running. The "not being able to get to bios" bit makes me worry there may be something wrong with a stick. Usually if the overclock fails, the mobo just shoots you an alarm and deactivates EXPO, then you boot at the base DDR5 speed at 4800.

I tried all sticks one by one, each one worked normally. I wasn't aware of this DDR5 problem before and i bought another 2x16Gb. Unfortunately i have two 2x16 gb kit now  and i have to use them in lower speed or sell. It seems that buying a 2x32 is the only optimal solution in terms of performance.  When i disable Expo i see sticks are working in 4800 Mhz. I am using Ryzen 9700. I looked at the specs of this cpu in AMD's internet site and found the supported speeds that cpu can handle. Maximum 5200 Mhz, really interesting. So buying a 6000 MHz stick for this Cpu is pointless. 

[LeDoyen]

Oh Ryzen benefits from higher speeds. the table states the speed the CPU is guaranteed to support from the factory. Above that it depends on your particular CPU.

But as you can see, it supports 5200 if using two sticks only (1R and 2R are single rank and dual rank sticks).

In your case with 4 sticks, the CPU spec drops to DDR5-3600.

It's easy to overclock with EXPO from 5200 to 6000. Not so easy to get from 3600 to 6000, more so on a mix of two separate kits.

 

[mordavia]

36 minutes ago, LeDoyen said:

Oh Ryzen benefits from higher speeds. the table states the speed the CPU is guaranteed to support from the factory. Above that it depends on your particular CPU.

But as you can see, it supports 5200 if using two sticks only (1R and 2R are single rank and dual rank sticks).

In your case with 4 sticks, the CPU spec drops to DDR5-3600.

It's easy to overclock with EXPO from 5200 to 6000. Not so easy to get from 3600 to 6000, more so on a mix of two separate kits.

 

3600 MHz is really slow compared to 6000 MHz. I think i need to buy 2x32 Gb 5200 Mhz sticks. Cpu can not handle 6000.

Edited May 24 by mordavia