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Asrock Z97 OC Formula-PSC

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Got LN2 and decided to run some cold mem.

BBSE was a bit disappointing but the sticks only just do 2600C8 on air. Full pot & 2.1V:


Ran my trusty 1600C7 again and finally got into the 17s. Full pot & 2.36V:



Edited by Noxinite
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  • 4 weeks later...

'Cause I'm just a sucka for cold PSC here's some more.

One stick from the last 1600C7 set and the other from a new 1600C7 kit I got. Better for C6 freq, but worse on RCD so couldn't try 2750 6-9-6 like I wanted. So instead I was at much higher freq with RCD10 (that kills effi even with 3/4 IOLs), also check out that high RAS. :/ Therefore still no bunnyextraction 16s. D;



Edited by Noxinite
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  • 3 weeks later...
On 1/6/2021 at 10:40 PM, redux said:

I'm not sure if it's because of this IMC or what, but I have had crazy scaling on most sticks, 2V+ easy on all so far and with the right settings even scaling 2.1V+, 2.2V+, and at least booting even 2.3V on some sticks (a mediocre 2000C9 Trident booted 2.33V!), with normal ambients and auto VTTDDR.

Finished binning my PSC a little while ago and I feel I should clarify this -- high voltage scaling on PSC is just a matter of the settings you run. Roughly speaking, running tight but with loose tRCD gives the most voltage headroom. Sticks that take 2.2, 2.3, and even 2.5V are the exception, not the norm (and usually suck anyway :D). I will make a post in more detail at some point.

On 4/21/2021 at 1:23 PM, redux said:

Binning IMC for Samsung (Rev.D) is much much easier. Probably 90% of my chips I tested (all G3258?) passed 2800c9 no problem so I decided it wasn't worth doing.

Quick binning at 2800C9 isn't enough, evidently. I'm currently working on rebinning with my PSC binning chip and, aside from better voltage across the board as is to be expected with a better quality IMC, high frequency (2800++) voltage scaling is dramatically better, 100mV+ lower in some cases versus the poor quality 4670K I used some time ago. Naturally binning stringently is always better (though, you know, having some validation that your goals are realistic is always the problem), I would bet some kind of 2850+, 2900+ metric for IMC binning is a better idea.

(Though, technically, this IMC would have failed my Samsung binning, it needs +0.3 IOD for 2800+, unlike with PSC)

Edited by redux
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