3200mhz memory instability on Ryzen

PiKe

PiKe

PiKe

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I'm trying to work out why I keep seeing memory errors on the following spec:

Ryzen 7 2700
16gb (2*8) cmk16gx4m2b3200c16 @1.4v (BIOS only goes up in 0.05v steps)
Asrock B450M Pro4-F

The BIOS loads the XMP profile but sets the voltage under spec at 1.35v, I've increased it to 1.4v and I still see an error in memtest86, it just takes a bit longer.

The motherboard is running bios p1.50 as the versions above that say that they are not recommended for pinnacle ridge cpus.

It's listed on the QVL list for the motherboard too.

Any suggestions besides trying a lower memory freq?
 
It's a bit rubbish when the QVL specifically states pinnacle ridge with this exact memory, I've checked the die and it's Samsung b-die so it should have it's best shot at it working :confused:
 
Jamin280672 said:
Are you sure its Sammy B-Die, download Thaiphoon burner and check with that, because CL16 3200mhz is very very rarely B-Die, its more like Hynix, much cheaper, B-Die is normally CL14 in the 3200mhz flavour

Ive just googled the part number, there is no way in this world that Corsair LPX is B-Die, its cheap ram, and quickly reading some reviews on the rainforest, most people are only getting 2933mhz out of it with 2nd gen Ryzen.
Click to expand...
I used Thaiphoon and it said b-die.

I've tried changing the SOC to 1.0v (not sure what the default is?) if that doesn't work, then I'll try 1.1v, if that doesn't work I'll admit defeat and run it at 3000mhz.

Kit needs 1.36v board is supplying 1.4v as stated in OP.

tamzzy said:
lol. buying into hype again.
Click to expand...
I bought it based on it being on the QVL, I only found it was b-die when I checked it earlier
 
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