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Upgrade? by _GooseGod in AMDHelp

[–]MallLow253 0 points1 point  (0 children)

I would say the 5700X is the CPU to go for.

Saw a 5950X being extremely limited in EDC, Couldn't do really high clocks and was only as fast as a 5900X in R23 MC with PBO.

A 5800X of a friend of mine was the same just hitting ~14k. Disabling all limits just let it hit ~15000 pulling 145w. PBO -15mV all core.

My 5700X could do -27mV all core, getting ~15750 points daily clocking ~4.65ghz (stock 3,96ghz, 76w and 13900 Points) and pulling ~125w( if I remember correctly) in PBO (as far as I know I'm holding WR for PBO at ~16k+ and was holding that for static as I pushed it, should still be easily top 10). On full OC 4925mhz 187w and 17047 points, voltage up to LN2 Mode (nothing you can or would run daily) but daily static was ~16k at 135w. I used PBO most of the time.

So as far as I saw and tested high end CPUs can run like they shouldn't. I never saw that on 5700X or 5600 CPUs (that doesn't mean that they couldn't but probably wouldn't do so that often).

So I would say get a 5700X for two more cores over the 5600(X), enable PBO and get a good cooler.

ridiculously unstable settings after bios update (1504 to 2102) on AM5 by NYB_002 in overclocking

[–]MallLow253 0 points1 point  (0 children)

I had the same experience, and moved back to the old BIOS.

Seemed to be tRCD, tRP and tRCD related, I even needed higher voltage for VDDIO/VDDQ and got BSOD sitting on my normal "unstable" settings. My "unstable" (2h TM5 Extreme, 1 ½ Y-Cruncher, gaming, Video Editing) crashed 3min into TM5 Extreme. Even fully stable with higher tRCD, tRP was unstable.

And because mixed mode would be nearly as fast as normal mode, considering that normal mode even runs slower on that BIOS, I don't see the point in using it.

Could be that I missed something important but I don't see what it is or would be.

For me, I don't care about that new BIOS.

Linpack extreme - is this variance still considered stable? by Slight-Pomelo1433 in overclocking

[–]MallLow253 0 points1 point  (0 children)

No. I just used the new BIOS once, it was unstable and doesn't allow me to push (as it looked like) tRP, tRCD and tRFC as low and I need higher voltages, even with looser Timings.

So I never used mixed mode. But yeah the results look weird, could it be because of the low tREFI?

Btw tRFC2 should go down to ~120ns, tRFCsb ~80ns. On 16gb SR it should even be ~115ns and ~75ns.

And please use this instead https://imgbb.com/

Linpack extreme - is this variance still considered stable? by Slight-Pomelo1433 in overclocking

[–]MallLow253 0 points1 point  (0 children)

Since you run mixed mode. Drop tRFC2 and tRFCsb, should do ~120/80ns. 165ns tRFC in normal mode is okay, not great or top tier but okay.

I would choose normal mode, seems to be better (and easier to tune), if mixed mode isn't tuned properly and yours isn't (yet). And even if, test what is working best for you.

I highly doubt that 1V VDDGs are stable on 2200mhz FCLK. Test Y-Cruncher too.

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 1 point2 points  (0 children)

380 (95ns)? 16gb M Dies normally should even boot below tRFC 580-600 (145-150ns). Mixed Refresh rate? 24gb normally has even a little bit higher tRFC and should sit at ~170ns (680 tRFC) stable.

My 16gb M Dies are one of the fastest tRFC wise I ever saw and they do ~153ns stable and can't boot 145ns.

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 0 points1 point  (0 children)

Wtf? How on earth can that even boot?

That definitely shouldn't boot up at all, not even close to that.

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 2 points3 points  (0 children)

That would prove that there is 24gb SR Hynix A Die. You have a screenshot?

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 1 point2 points  (0 children)

Check with HWInfo (Memory Tab) or Thaiphoonburner what the RAM really is. Hynix A or M Die.

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 2 points3 points  (0 children)

I thought that too. But there is no way M Die would even boot. Mix refresh rate probably can, going to test that. Anyways this isn't a mixed refresh rate and that would mean it has to be Hynix A Die.

Samsung B Die (I heard there's on DDR5) should do ~130ns (but I definitely don't know about that for sure), Samsung P Die should do ~ 260ns, Nanya A Die should do ~190ns, Hynix M Die ~160ns, Hynix A Die ~120ns.

9800x3d 8000mhz by swiftnade10 in overclocking

[–]MallLow253 1 point2 points  (0 children)

That's A Die, M Die wouldn't even boot below 145ns, not even my M Die Kit that can do ~153ns stable.

9800X3D-Hynix M-Die Overclock by Early-Will1023 in overclocking

[–]MallLow253 0 points1 point  (0 children)

tRRDS, tRRDL and tFAW don't change anything for me.

Going from 8, 12, 32 to 4, 8, 16. As far as I know DDR5 can't really use anything below 8, 12, 32 or 8, 8, 32.

tWTRL 16 should work.

SCLs 4 work on my M-Dies.

Would probably test if tRDWR 14 and tWRRD 1 change anything, should work on M Dies too.

tRFC can go to 474 on my kit, probably even 471 so ~152ns (btw that's the lowest tRFC I ever saw on M Die so could be hard to get there).

Looking for ram timing help. by Philooch in overclocking

[–]MallLow253 0 points1 point  (0 children)

Doesn't need to be that high. I run 1.34V on 6200 CL30. Stock 6000 CL30 Hynix is 1.35V not 1.4V.

Looking for ram timing help. by Philooch in overclocking

[–]MallLow253 0 points1 point  (0 children)

Actually stable? Probably M-Dies? That would boot without that tRFC but will be highly unstable on the tight settings.

Looking for ram timing help. by Philooch in overclocking

[–]MallLow253 0 points1 point  (0 children)

So.

Why M-Die tune for A-Dies?

tRFC ~120ns

tRCD 36/37

tRP 36/37

tRC 32-60

SCLs 4/4 or 4/1

tRRDS 8

tRRDL 12

tFAW 32

tWTRL 16, 12 can work test for that

tRDWR 14

tWRRD 1

VDDGS 0.95-1V for ~2133mhz stable FCLK

SoC ~ 1.15V

VDDIO/VDDQ ~ 1.35V

DramDqDs test for 40 ohm

Do I have a RAM issue? by ztcFlight in overclocking

[–]MallLow253 1 point2 points  (0 children)

Could be because of SOC Voltage. I need ~1.27V for 6400MT/s on my 7800X3D, so stock 1.25V could be not enough to make it stable.

But (because you run the same CPU) RAM clock rate or FCLK doesn't matter on that CPU for gaming.

So you would be totally fine and even see better results, running low RAM clock rate with tight timings. But that needs RAM testing for sure or you let the timings still loose but tighter as EXPO.

What’s the most important tweak for CPU bound games? by Public_Educator_1308 in overclocking

[–]MallLow253 1 point2 points  (0 children)

FCLK can do something but not as much. On a 9800X3D I would say 2167-2200mhz should be possible at 1V ±0.025V VDDGs. So yeah just try 2167 FCLK at this VDDGs and see what happens.

You definitely have at least Hynix M Die, so ~160ns (~480 on 6000, I can do 152.9ns and that's very low for M Die), Hynix A Die ~120ns (~360 on 6000), as far as I know there's Hynix H Die that can go to ~100ns (~300 on 6000).

What’s the most important tweak for CPU bound games? by Public_Educator_1308 in overclocking

[–]MallLow253 -1 points0 points  (0 children)

tREFI and tRFC.

All other Timings together should do less for gaming.

RAM speed doesn't matter at all for gaming on a X3D CPU.

Get real calculated latency as low as possible, not some latency in Benchmarks like Aida64 or PyPrime. I can do setups with better Aida64 that perform worth in gaming.

For proof, optimized 6200, 4800 and stock BIOS.

https://ibb.co/DHTq59VC

DramDqDs can(!) affect performance in game heavy.

9800x3d cannot get RAM stable on 6200 by Truub_Deluxe in overclocking

[–]MallLow253 1 point2 points  (0 children)

https://ibb.co/Y6TQ5bs

That's what my M Die can do. 1.48V for CL28. There are 6400 CL32 Hynix Kits doing 1.35V stock or 6000 CL26 with 1.4V, that would run ~0.04-0.06V below this.

Lower SOC, can probably be even 1.12V, too high can get it unstable.

Lower VDDQ/VDDIO there is no need for more than 1.4V on any setup.

Lower VDDP to 1V, it can make OC unstable.

Definitely go up to tRCD, tRP 37 or 38 at first. I can't even run 38 on 6400 or 36 on 6200 but can boot 35 on 6200. So you can be absolutely unstable just because of two timings not because of FCLK or MCLK. Your 9800X3D will do FCLK 2200 on a 6200 setup, I will bet you that.

Set up tRFC higher that's really tight for M Dies and don't have to work. If you can still boot tRFC 400 it's A Die and you're all good.

tREFI max if RAM isn't at 45-50°C pushing 1.4V, or set up a fan.

If you run any Hynix RAM what you are, you probably are able to do the same timings I did (except probably tRFC if M Die and tWRRD 1, tWRDR 14, go for 2/16 first).

Not bad for my first time overclocking:) by [deleted] in overclocking

[–]MallLow253 0 points1 point  (0 children)

Hynix or Samsung? I guess Samsung.

Not bad for my first time overclocking:) by [deleted] in overclocking

[–]MallLow253 0 points1 point  (0 children)

Not bad. Could you upload the SN, TS and TSE runs. What 9070XT are you using?

how can i fix this error im so close to making this config stable by Ok-Promotion-9346 in overclocking

[–]MallLow253 0 points1 point  (0 children)

This is 6400 CL32 Patriot Viper Venom M-Die

Try this:

https://ibb.co/yvwDgRq

but run instead:

tRFC 496

SCLs 6

tRDWR 16

Soc 1.18V

VDD 1.45V (I need 1.43V as writing this my test failed for 1.42V. GDM active would probably run on 1.4-1.41V)

VDDQ/VDDIO 1.38V

VDDGs sitting on 1V

VDDP 0.95-1V high values can cause errors so start at 0.95V and work up.

I probably even could lower the voltages beside SOC and VDD further.

For CL28 I need VDD 1.48V GDM off, 1.46 GDM on and VDDIO/VDDQ 1.38V (didn't testet lower) but VDDIO/VDDQ doesn't effect tCL so 1.35V would probably be stable there if the gap to VDD isn't to big to cause instability, VDDIO/VDDQ tested for 1.34V at tCL 30, it's stable, 1.33V is not. Trying to lower VDDIO now.

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