Asrock Z97 OC Formula-PSC

[yosarianilives]

36 minutes ago, Noxinite said:

The post code '15' issue I had was with tight and loose subs though.

I might have a try on the OCF and see if it's the same behavior. But I think one of the sticks isn't as good as the other and/or doesn't like the lower temps as much.

15? that's PCH code iirc. Did you insulate the board like in the m8i subzero guide? I think that the pch and vrm don't like to be too cold and the board is so cramped it can be an issue.

[Noxinite]

But only at above 2800C6? Would be very weird.

Maybe it was a bclock issue?

Edited October 12, 2018 by Noxinite

[GtiJason]

13 hours ago, Noxinite said:

But only at above 2800C6? Would be very weird.

Maybe it was a bclock issue?

Set Internal PLL Overvoltage to auto, when it's enabled some boards go right to code 15 

Edit: from Raja "Just an FYI: Code 15 will also happen if memory is clocked too high for IMC to handle." and
"Code 15 means IMC halted before DRAM training even started. Either DRAM is very badly unstable or IMC has an issue (could be IMC voltage needs changing also). Assuming no bent or poorly contacting pins in socket (sometimes CPU might need re-seating)"

Edited October 13, 2018 by GtiJason

[unityofsaints]

On 5/7/2017 at 1:22 PM, Noxinite said:

Update with 4770K on phase.

I managed to get 2918 42/43/4/4 working at 2.36v on my sticks. They just kept eating those volts and taking it. Funnily at lower bclock and higher ram divider it wouldn't pass the initial loop compared to passing with wazza at the shown settings.

Wow, I don't remember the OCF going up that high on Vdimm! Maybe that's 2.3V + LLC? I need to get out this board again and play with it.

[GtiJason]

3 hours ago, unityofsaints said:

Wow, I don't remember the OCF going up that high on Vdimm! Maybe that's 2.3V + LLC? I need to get out this board again and play with it.

Yeah, she goes to 2.4v without issue. My "test" kit of TridentX sammy hyko has run at 2.4v, and 2.37-38v many times. It needs high vdimm for 2720-2750c8-11-11 & 2933c9-12-12. Test kit because I ran em daily at 2v (2800c9) for over 2 years with little to no degradation

edit: think Nox was referring to the Asus Impact vii I sent him, they go to 2.4v too. Also MSI XPower's did too

Edited February 4, 2019 by GtiJason

[Noxinite]

The earlier posts by me are on Z97 OCF, and later posts are on the Impact. Both do >2.4V DRAM, but the Impact needs LN2 mode flipped for it.

[Luumi]

Did some PSC testing in ages with new L310B488 4770K that I got on OCF. Bad CPU core wise but really really good IMC. I got my Patriot 2500 CL9 Sector 5s up to 2850-2860mhz stable with 8-13-8-28 1T and tight sub timings, 2860 always crashed at loop 16 so it is close. I even tried 2900mhz with identical timings and passed 1M, but 32M is instant falure of course. Scaling is insane, they scaled well up to 2.08v and I was too afraid to push more just on air. with 1.96v they max out at around 2800 8-12-8-28 1T and 2.08v allows 2850+. @TaPaKaH @yosarianilives @GtiJason @Noxinite @l0ud_sil3nc3

 

 

Edited July 8, 2020 by Luumi

[Mahameru]

1 hour ago, Luumi said:

Did some PSC testing in ages with new L310B488 4770K that I got on OCF. Bad CPU core wise but really really good IMC. I got my Patriot 2500 CL9 Sector 5s up to 2850-2860mhz stable with 8-13-8-28 1T and tight sub timings, 2860 always crashed at loop 16 so it is close. I even tried 2900mhz with identical timings and passed 1M, but 32M is instant falure of course. Scaling is insane, they scaled well up to 2.08v and I was too afraid to push more just on air. with 1.96v they max out at around 2800 8-12-8-28 1T and 2.08v allows 2850+. @TaPaKaH @yosarianilives @GtiJason @Noxinite @l0ud_sil3nc3

 

 

Sweeeeeet, new binning standard for PSC I guess  long live Haswell!

[yosarianilives]

Damn that's insane for air, Inb4 no cold scaling and cb at -100c 

[l0ud_sil3nc3]

@Luumi never tried 8-13-8 but looks fast for sure for air clocks at 2850+

Nice to see PSC in 2020

 

[d0minat0r]

When die USB of any oc formula only solder 5V directly on 5v pin on usb all work good. With that method I repaired Z87 oc formula, X99 oc formula, Z97 oc formula and Gigabyte X99 SOC 

[GtiJason]

15 hours ago, d0minat0r said:

When die USB of any oc formula only solder 5V directly on 5v pin on usb all work good. With that method I repaired Z87 oc formula, X99 oc formula, Z97 oc formula and Gigabyte X99 SOC 

So are you saying to pull a jumper wire from any 5v source to the 5v pin on usb ?

Hope I can free up some more time soon for the OCF + PSC, so much fun to be had with X48 REX, Z97 OCF and new stuff like APEX XI / APEX XII

 

[Bullant]

2 hours ago, GtiJason said:

So are you saying to pull a jumper wire from any 5v source to the 5v pin on usb ?

Hope I can free up some more time soon for the OCF + PSC, so much fun to be had with X48 REX, Z97 OCF and new stuff like APEX XI / APEX XII

 

Nice collection ?

[d0minat0r]

[d0minat0r]

can someone share link where can buy memory tray?

[GtiJason]

On 7/28/2020 at 6:27 AM, d0minat0r said:

can someone share link where can buy memory tray?

Mine came from China via EBay
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=ddr3+memory+tray&_sacat=58058

[d0minat0r]

Thx  but today got 2 pieces for 5 beer from my ex boss

[redux]

After testing about a dozen quad cores I have found an L310B 4770K with an IMC good enough for my purposes and I've been doing a lot of PSC binning on this board lately. Tested only ~a dozen sticks on this setup so far but some nice results

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. Helps me not to feel bad about average sticks by MHz/volt terms with scaling like this ? :

Maybe even 2666C7 tCWL6 or 2666C6 could be done with cold ambients and stupid volts?

 

tRDRDs can go a little tighter here (not sure about 4-5-4), but just a bit of fun:

 

For point of reference this stick does 1200 7-11-7-28 tCWL8 1.7V, 1300 8-12-7-28 tCWL6 1.84V, 1333 8-12-8-28 tCWL6 1.9V, 1350 8-12-8-28 tCWL6 2.01V, 1400 8-13-8-28 tCWL6 2.08V all tight subs. Again, far from golden lovo. +0.3/+0.25/+0.25 used for all testing except the 2950 screen where a bump to +0.28 IOD helped boot consistency. An even better IMC I suspect will improve tRCD12 and tRCD13 ceilings for this kind of testing, 1375 8-12-8 is at least bootable yet 8-13-8 stops at only 1414 32M...

Edited January 8, 2021 by redux

[K404]

On the subject of PSC.... how much variation is there in Haswell IMC? None of my PSC does anything good- tested on MSI, Gigabyte and Asus, but I wonder if im a bit rusty or being too soft with vSA and vI/O

 

[Noxinite]

Honestly I've only had one CPU ever that seemed unable to do 2666C8, but it was pretty early on with me OCing Haswell.

Most CPUs will work with typical volts (+0.35/+0.15/+0.2) or "Bullant" (+0.08/+0.06/+0.180).

Or, like my 4770K, they need stupid IOD just to get 2666C8 to post (+0.4) but then will do 2770C8 fine on air. With a little cold on SS, it works fine like any other CPU though. Samsung OC was also totally unaffected compared to other CPUs.

[K404]

Thanks In terms of volts, is that ~1.25/1.05/ 1.1v?

[Mahameru]

1 hour ago, K404 said:

On the subject of PSC.... how much variation is there in Haswell IMC? None of my PSC does anything good- tested on MSI, Gigabyte and Asus, but I wonder if im a bit rusty or being too soft with vSA and vI/O

 

I've tried G3258, 4670K, 4770K, 4790K they clock PSC well, slight differences, but the latest 4790K i have which is Vietname one was the best

 

21 minutes ago, K404 said:

Thanks In terms of volts, is that ~1.25/1.05/ 1.1v?

Yep, voltage range not too far away from that

Edited April 21, 2021 by ivaneza

[redux]

5 hours ago, K404 said:

On the subject of PSC.... how much variation is there in Haswell IMC? None of my PSC does anything good- tested on MSI, Gigabyte and Asus, but I wonder if im a bit rusty or being too soft with vSA and vI/O

 

(First note I have been binning IMCs with 8M, not 32M.)

I have had multiple CPUs that were not able to do 2666 8-12-8 tight, though this was only in quick profile testing and maybe some of those could do it with some tweaking. I use IMC volts +0.3/+0.25/+0.25 and very lazy +0.05 to each if the chip fails. It depends on the sticks and how many channels as well, I have had multiple chips fail 2600c8 with dual channel sticks that do 2666 all day, and then do 2750 8-12-8 in single on a better stick.

For harders numbers, in my most recent round of IMC testing (2666 8-12-8 tight and 2750 8-12-8 tight) I had 23% fail 2666, 77% pass 2666 (~5% of passing chips needed raised IMC), and 41% pass 2750 (~25% of passing chips needed raised IMC). This was across 39 G3258/4670K/4770K.

IMC also matters for VDIMM. I did some mem binning on a crap 4670K that struggled with 2666 8-12-8 last year. When I rested with a very good IMC (now dead ) some of the same sticks ran settings at 50mV lower volts.

And of course there's more. Some IMCs hate tight tRCD or tRP, some don't like extreme VDIMM, etc.

 

5 hours ago, Noxinite said:

Honestly I've only had one CPU ever that seemed unable to do 2666C8, but it was pretty early on with me OCing Haswell.

Most CPUs will work with typical volts (+0.35/+0.15/+0.2) or "Bullant" (+0.08/+0.06/+0.180).

Or, like my 4770K, they need stupid IOD just to get 2666C8 to post (+0.4) but then will do 2770C8 fine on air. With a little cold on SS, it works fine like any other CPU though. Samsung OC was also totally unaffected compared to other CPUs.

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.

[K404]

I really appreciate the comments and numbers, thankyou

 

I have more to try! I'm not used to being so far off the mark, especially as the sticks have done better MHz previously and there's no reason for them to be degrading.

[Noxinite]

11 hours ago, 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.

Agreed for this.

Also, stock SA is typically 0.85V, so +0.35 is 1.2V most of the time.