AMD Ryzen 7 9800X3D

Cenuij · Thursday at 20:54

Nitefly said:
@Cenuij this is what I've ended up with... basically stock EXPO with a few Buildzoid settings and decreasing tRFC as you recommended.

Not great, but I'm only gaming so I'm sure it's fine. I did get away with the -35 curve optimiser and some people can't do -20, so there's that I guess

70ns in Aida is probably what I would expect from my own experience using that tool @6000

Have you tried 6200 with 2066 FCLK? 6200 is not too hard, and 2066 aligns nicely at 3:2

Edit: I guess also disabling gear down mode might eek out a little bit more performance, and then disabling bank address hashing would probably boost write speeds a bit.

Nitefly · Thursday at 21:14

Cenuij said:
70ns in Aida is probably what I would expect from my own experience using that tool @6000

Have you tried 6200 with 2066 FCLK? 6200 is not too hard, and 2066 aligns nicely at 3:2

Good to know.

Not recently, could give it a go!

Would it warrant loosening any timings...?

Cenuij · Thursday at 21:15

Nitefly said:
Good to know.

Not recently, could give it a go!

Would it warrant loosening any timings...?

I don't think so, it's not that tough on any of the controllers, also added an edit after you replied:

Edit: I guess also disabling gear down mode might eek out a little bit more performance, and then disabling bank address hashing would probably boost write speeds a bit.

Nitefly · Thursday at 21:24

Yeah, can't get away without GDM engaged... dies a death!

Will have a go tomorrow.

cHk4 · Thursday at 21:44

I'm sure I won't need to but I really want to upgrade to this, I'll see how POE2 performs but if I see any drops then that's my excuse to buy it

Chirwad · Thursday at 22:26

otester said:
Just got DPD notification, so anyone up to 14:43 (my order) should be wave 2 I think.

I ordered 07.11.2024 @ 14:42:25 and I do not have a DPD notification.

matty007 · Thursday at 23:19

Nitefly said:
Yeah, can't get away without GDM engaged... dies a death!

Will have a go tomorrow.

I could 100% do 6000 or maybe even 6200 without GDM as I actually think the memory controller on this chip is stronger than my 7800X3D (which wouldn’t even boot 6400). On my 7800X3D I managed 6000CL26, so I know for sure I could do better on this chip.

However, I really want to run 6400. The added bandwidth of 6400 and the still very low CL at 28 should negate the GDM ‘penalty’ really. It’s pretty much like running 6400CL29 or CL30.

Hopefully I will get home and it shows no errors. I will then move on to CPU over clocking.

The final step will then be benching 6400CL28 GDM and 6000CL26 GDM off, to see which is superior.

matty007 · 2024-11-22T01:54:19+0000

matty007 said:
M-Die. So far, this is looking stable.

Stable for 11+ hours. I can certainly tighten a couple of timings and maybe bring the primiaries down to 37/36, but this is solid, and a very good base.

IceWolf · 2024-11-22T08:25:29+0000

matty007 said:
Stable for 11+ hours. I can certainly tighten a couple of timings and maybe bring the primiaries down to 37/36, but this is solid, and a very good base.

Shouldn't your FCLK be 2133 with 6400 memory in order to have the optimal FCLK to UCLK(MemCLK) ratio of 2:3? That would improve latency no? Or is even higher FCLK better? I guess you could benchmark both and see what is faster

Nitefly · 2024-11-22T09:20:18+0000

IceWolf said:
Shouldn't your FCLK be 2133 with 6400 memory in order to have the optimal FCLK to UCLK(MemCLK) ratio of 2:3? That would improve latency no? Or is even higher FCLK better? I guess you could benchmark both and see what is faster

I said something similar earlier in the thread before I tested it myself.

In reality, I’ve found that in 1:1 mode (that’s, MCLK:UCLK) higher FCLK improves latency. This is because, I assume, a ratio of 2:3 UCLK:FCLK doesn’t really have any major advantage.

However, I understand that in 2:1 mode, for higher ram speeds, then it does matter. E.g 8000 speed ram, 4000 MCLK, 2000 UCLK, 2000FCLK.

daninthemix · 2024-11-22T09:40:28+0000

Does anyone have advice in lowering temps a bit? I have a Noctua DH-15 dual tower, my idle temps are low-mid 40s, cinebench and gaming peaks at low 80s. And it's winter, so I assume summer will be much worse.

I am running at -25 Curve Optimiser.

daninthemix · 2024-11-22T09:42:08+0000

Nitefly said:
I said something similar earlier in the thread before I tested it myself.

In reality, I’ve found that in 1:1 mode (that’s, MCLK:UCLK) higher FCLK improves latency. This is because, I assume, a ratio of 2:3 UCLK:FCLK doesn’t really have any major advantage.

However, I understand that in 2:1 mode, for higher ram speeds, then it does matter. E.g 8000 speed ram, 4000 MCLK, 2000 UCLK, 2000FCLK.

Oh really? On Auto my FLCK was 2100, I dropped it to 2000 for a 1:2 ratio after reading that was the thing to do...

IceWolf · 2024-11-22T09:46:33+0000

daninthemix said:
Oh really? On Auto my FLCK was 2100, I dropped it to 2000 for a 1:2 ratio after reading that was the thing to do...

But what ram speed are you running? 6000 needs FCLK 2000, UCLK and MemCLK 3000. 6400 needs FCLK 2133, UCLK and MemCLK 3200.

If your FCLK was stable at 2100 you could run your RAM at 6200 with 3100 UCLK and MemCLK. Either way the benefit in games is 1-2% going from 6000 to 6400 so for me I decided it was not worth the hassle. But this is OCUK so people enjoy tuning and tweaking which is cool if they are having fun

daninthemix · 2024-11-22T09:47:45+0000

IceWolf said:
But what ram speed are you running? 6000 needs FCLK 2000, UCLK and MemCLK 3000. 6400 needs FCLK 2133, UCLK and MemCLK 3200.

Yeah 6000 RAM. MemCLK is 3000.

tiberuk · 2024-11-22T09:51:20+0000

I ordered at 2:13 and mine turned up yesterday... covered in snow and freezing cold, who said it doesn't come with a Cooler?

alec · 2024-11-22T09:54:08+0000

IceWolf said:
FCLK

I have not kept up with it, but isn't 2:3 fclk:mclk thing a myth? Benchmarks favored fclk to be as high as it goes, and couple cases where fclk wasn't really stable at high speeds made people think dropping it to be 2:3 was an improvement?

Nitefly · 2024-11-22T09:56:48+0000

IceWolf said:
But what ram speed are you running? 6000 needs FCLK 2000, UCLK and MemCLK 3000. 6400 needs FCLK 2133, UCLK and MemCLK 3200.

This is what I’m saying is NOT necessary.

With 6000 ram speed (MCLK 3000) and UCLK of 3000 (i.e. 1:1 mode), there is (in my experience) slightly less latency with FCLK being higher, regardless of ratio.

The big gains come in 2:1 mode because your FCLK matches UCLK.

henson0115 · 2024-11-22T10:07:53+0000

daninthemix said:
Does anyone have advice in lowering temps a bit? I have a Noctua DH-15 dual tower, my idle temps are low-mid 40s, cinebench and gaming peaks at low 80s. And it's winter, so I assume summer will be much worse.

I am running at -25 Curve Optimiser.

you could try the noctua offset bracket, dont expect much of a drop though a few degrees

IceWolf · 2024-11-22T10:19:41+0000

daninthemix said:
Does anyone have advice in lowering temps a bit? I have a Noctua DH-15 dual tower, my idle temps are low-mid 40s, cinebench and gaming peaks at low 80s. And it's winter, so I assume summer will be much worse.

I am running at -25 Curve Optimiser.

The CPU will keep boosting until it reaches its temperature Target which is 85 c. So if you want lower temperatures you need to set a lower temperature Target in the bios no matter how good your cooling is

stooeh · 2024-11-22T10:19:48+0000

daninthemix said:
Does anyone have advice in lowering temps a bit? I have a Noctua DH-15 dual tower, my idle temps are low-mid 40s, cinebench and gaming peaks at low 80s. And it's winter, so I assume summer will be much worse.

I am running at -25 Curve Optimiser.

Reseat it, couple of posters in here had higher than expected temps fixed with by remounting the cooler.

Idle temps dont look much of an issue nor cinebench but 80+ in games?