Zen Timings screenshot? A Die or M Die?
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AMD Ryzen 7 9800X3D
- Thread starter Hostile_18
- Start date
Just a work of warning to fellow noobs; even if it boots it doesn’t mean it’s stable.
The best ‘killer’ for an over ambitious curve optimiser seems to be a cinebench multi-core.
The best quick ‘killer’ for ram timings is the AIDA64 stress test, IMO, but TestMem5 works as well I gather.
@Cenuij I’ve settled for cl28 and 6000. I was playing around a bit and got cl38 and 8000 to post with a higher voltage, but it still wasn’t stable. It’s a gaming rig and I can’t see it making a huge difference. Will post timings later. Also, thanks re: the tips!
The best ‘killer’ for an over ambitious curve optimiser seems to be a cinebench multi-core.
The best quick ‘killer’ for ram timings is the AIDA64 stress test, IMO, but TestMem5 works as well I gather.
@Cenuij I’ve settled for cl28 and 6000. I was playing around a bit and got cl38 and 8000 to post with a higher voltage, but it still wasn’t stable. It’s a gaming rig and I can’t see it making a huge difference. Will post timings later. Also, thanks re: the tips!
Also… what is the take on memory voltage being safe? My kit is rated for 1.4v but everyone seems to be setting theirs way higher.
It’s also not clear whether all the mem voltages should be ‘set the same’ - @LtMatt yours are different, for example.
It’s also not clear whether all the mem voltages should be ‘set the same’ - @LtMatt yours are different, for example.
Oh for sure, obviously. But given I was booting at 6600 1:1 and getting a small amount of errors, it was close. Think 6400 is where I'm at though. Above screenshot has been error free in Karhu for a couple of hours so far.
Depends on cooling (I have ram fans), but as high as 1.8V is 'safe'. Sometimes, hynix doesn't scale with voltage though. If I go any higher than about 1.6v, I don't get added stability.
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Would I be silly to buy a RTX 4080 Super Duper/7800X3D build now? both getting long in the tooth? I can see the forum comments in the build sections, 5k cards due soon and this 9800X3D costing a few £ more seems a no brainer.
But no 9800X3D for a few weeks by the look of it, OCUK saying no stock till Jan.
If I wait, Ill probably change my mind (again) and then have to deal with the pricing of the RTX 5 cards next year.
Where if I buy now, I put my ADHD riddled brain to bed, and possibly have a 4K gaming system that may see out the next 5 years?
But no 9800X3D for a few weeks by the look of it, OCUK saying no stock till Jan.
If I wait, Ill probably change my mind (again) and then have to deal with the pricing of the RTX 5 cards next year.
Where if I buy now, I put my ADHD riddled brain to bed, and possibly have a 4K gaming system that may see out the next 5 years?
A 7800x3d will still be relevant for a few years at least.
I would wait for the 50 series launch though before chosing a graphics card.
You are the man Jakyrian: this worked. I downloaded 5 of the last 9 BIOS and started with the first. I bought a 4GB stick USB 2.0 and formatted as regular FAT for maximum compatibility. I then used the Quick BIOS Flashback 5 times until I reached the latest version. Then the BIOS started without any further problems.I also had issues getting my system to boot. Apologies if this is against the rules but this is what worked for me (posted to the ROG forums):
Re: x670e-e gaming wifi 9800x3d issues
That's what I would've thought too but the system would stay on the orange light for about 2 minutes before shutting itself off. Flashed to a 2 month old BIOS (3024 for X670E-I), which posted fine. Kept moving to a newer and newer BIOS and eventually the latest (3057) also posted fine. Can't...rog-forum.asus.com
Now running stock EXPO 1 profile with 2000 FCLK and the PC runs perfectly. 1770 -> 2081 Single thread score in Cinebench R23 Vs my old 7800X3D.
The Asus TUF Gaming B650E Plus and X670E Plus boards both worked fine once BIOS was able to reach the newest version (used the B650 for a friend with my old 7800X3D).
6000 CL30 is fine with X3D, extremely limited returns going faster and from personal experience the occasion instability outweighs the benefits. Not sure if I am even going to do Curve Offset this time. It is already so fast.
fwiw, dropping 40mv from 1.52v to 1.48v also dropped the maximum temps reported by hwinfo from 61c to 52c (no direct fan cooling). That's pretty huge for 40mv. So if you're going to push higher, then deffo sort out some direct ram fans...
As a note to people doing extreme undervolts, mine was clock stretching starting at -20, getting progressively worse towards -35 (where I had it "stable" initially). This can kill performance even while everything else looks good (temps, reported frequency, wattage etc)
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I just have a 120mm fan on top of GPU, combine that with current UK temps and it's cool RAM even at 1.65v
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Interesting, what vSOC?
Just asking because my understanding is that higher vSOC takes from the overall package budget, and since I'll be looking at a stable undervolt next I'll now also be looking for stretching, and try to mitigate it with as low a vSOC as possible.
SOC can go up to 1.3V but with LLC (Load Line Calibration) set high enough it could go higher. Theoretically all BIOS versions since October 2023 from all board partners do not allow this. VRAM Voltages have different names depending upon the board manufacturer but the main voltages can go up to 1.4V safely (VDD, VDDQ) and there is one voltage that can safely go up to 1.8V (VPP).
I got tired of having to set my voltages manually on the X670 Gigabyte Aorus Elite AX and now just have EXPO on the X670E Asus TUF Gaming Plus. Faster than 6000 will not bring you much in games, especially with X3D chips as the cache mitigates any memory speed deficit. It is important to run 2:3 FCLK to MemCLK by setting FCLK to 2000 or 2033 MHz, otherwise the latency rises so much that you lose performance. The MemCLK will then be 3000 = 6000 Megatransfers/sec via DDR
I got tired of having to set my voltages manually on the X670 Gigabyte Aorus Elite AX and now just have EXPO on the X670E Asus TUF Gaming Plus. Faster than 6000 will not bring you much in games, especially with X3D chips as the cache mitigates any memory speed deficit. It is important to run 2:3 FCLK to MemCLK by setting FCLK to 2000 or 2033 MHz, otherwise the latency rises so much that you lose performance. The MemCLK will then be 3000 = 6000 Megatransfers/sec via DDR
DDR5 Memory Performance Scaling with AMD Zen 5
Our AMD Zen 5 Memory Scaling Review examines six different DDR5 memory speeds, including DDR5-8000, DDR5-6400 1:1, DDR5-6400 CL28 and others. We looked into how these speeds impact performance in gaming at four resolutions and a wide range of application workloads.
This article explains it nicely with benchmarks to show how the 2:3 ratio (described in the article as 1:1...) is better than higher memory speeds with 1:2 ratio (where FCLK is half MemCLK) using a 9950X and a variety of memory configurations up to DDR5-8000
Going to try a 5.6ghz manual overclock later, if my RAM overclock is stable that is (have left it running at home).
I know PBO + Scaler is the most conventional method, but there’s something about an all core manual overclock that gets the juices flowing lol
I know PBO + Scaler is the most conventional method, but there’s something about an all core manual overclock that gets the juices flowing lol
DDR5 Memory Performance Scaling with AMD Zen 5
Our AMD Zen 5 Memory Scaling Review examines six different DDR5 memory speeds, including DDR5-8000, DDR5-6400 1:1, DDR5-6400 CL28 and others. We looked into how these speeds impact performance in gaming at four resolutions and a wide range of application workloads.www.techpowerup.com
This article explains it nicely with benchmarks to show how the 2:3 ratio (described in the article as 1:1...) is better than higher memory speeds with 1:2 ratio (where FCLK is half MemCLK) using a 9950X and a variety of memory configurations up to DDR5-8000
I think 8000 is just a pretty number. Don’t get me wrong, it CAN outperform 6000+ 1:1 in some synthetic benchmarks, but almost never in gaming.
I think you’d need to be approaching 8400 for it to be level/better in gaming
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@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
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