DDR4 overclocking

[Wh1t3zZ]

I'm overclocking ram for the first time and this is as far I've got and I don't know how to lower tRCDWR , anything below will throw errors on memtest  voltage is already at 1.5v and its supposed to be a 24/7 oc.

 

these are the sticks im using for anyone interested: pvs416g400c9k

Tried 1.2 SoC and didn't really help.

[Hairless Monkey]

5 minutes ago, Wh1t3zZ said:

I don't know how to lower tRCDWR

It's already pretty low.

 

Your tREFI can probably be increased by quite a bit.

[Wh1t3zZ]

So i did a bit more testing i can run either tRCDWR 14 or tRCDRD 14 but not both also what would you recommend me to increase tREFI to? 

[Hairless Monkey]

1 hour ago, Wh1t3zZ said:

So i did a bit more testing i can run either tRCDWR 14 or tRCDRD 14 but not both also what would you recommend me to increase tREFI to? 

Try maxing it out. 65535.

[Hairless Monkey]

9 minutes ago, alatron978 said:

tREFI can't be changed on zen.

That blows, but given the inaccuracy of your next statement, I'll have to look into it further.

10 minutes ago, alatron978 said:

9900K doesn't support per core oc, it doesn't have clock gens per core. So you aren't running a per core OC.

Tell that to my 5.2Ghz boost clock...

[Hairless Monkey]

6 minutes ago, alatron978 said:

Boost clocks are different to per core OC. Per core OC has each core at a static frequency. Boost ratios allow higher clocks when only a certain number of cores are loaded.

How I love to pedantically argue semantics. From my Motherboard's Manual:

 

 

"Per Core" does not have one meaning. It depends on the platform.