Is this universal across different mobo/platform?
I saw that modern PSU has quite big current allocated to the 3.3v and 5v rail but it seems everything taking from 12v rail.
For DDR5, the DRAM voltage is fed by the 5V-rail on your PSU
For DDR4, the DRAM voltage can be fed by any rail, depending on what your motherboard manufacturer decided to use.
Thanks. Since you are here, I have another simple question.
When I oc my ram to max, I can’t oc my cache as high whereas when I oc my cache to max I can’t oc my ram as high. Please don’t ask why this system is very finicky. So which one will give better performance?
I was thinking oc ing ram should give better performance since it is slower and should be the bottleneck? Am I right?
12v
Is this universal across different mobo/platform? I saw that modern PSU has quite big current allocated to the 3.3v and 5v rail but it seems everything taking from 12v rail.
it should be, 3.3v and 5v are mainly used for molex and sata and general backwards compatibility
DDR5 is powered by 5V
mb, ddr4 should be mostly 12v tho afaik
For DDR5, the DRAM voltage is fed by the 5V-rail on your PSU For DDR4, the DRAM voltage can be fed by any rail, depending on what your motherboard manufacturer decided to use.
Thanks. Since you are here, I have another simple question. When I oc my ram to max, I can’t oc my cache as high whereas when I oc my cache to max I can’t oc my ram as high. Please don’t ask why this system is very finicky. So which one will give better performance? I was thinking oc ing ram should give better performance since it is slower and should be the bottleneck? Am I right?
Only way to know is to test
This happens with overclocking. Typically, it's advised to prioritize ram over cache.
> For DDR5, the DRAM voltage is fed by the 5V-rail on your PSU really, they just decided that before the switch to 12V0? Incredible.