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Maximus Z690 and Alder Lake: Modern CPU’s require Modern Overclocking Solutions
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11-04-2021
07:45 AM
- last edited on
03-05-2024
06:26 PM
by
ROGBot
Asus Z690, Maximus series and Alder Lake: The best tools for the best FPS.
First, let me start by thanking Shamino @ ROG Asus for allowing me and the other testers to put this exciting new hardware through its paces and experiment with the new overclocking features and architecture changes, and for the hard work to get these boards running well with these new features.
Also I need to thank cstkl1 and RobertoSampiao for helping me write this. Without their help, I would never have been able to do this.
And VERY BIG thank you to Skatterbencher for his excellent, precise, clear cut youtube videos on explaining these features and helping me with this guide.
Disclaimer ! These settings and methods were tested on *ENGINEERING* Qualification Sample CPU's ("QS") and
pre-production boards, so it is possible that some features may perform differently, slightly differently
identically, or even not work at all on retail CPU's. While QS samples tend to reflect final retail hardware, there may still be undocumented differences, errata, thermal issues or features that may be present or not present on retail parts.
AVX-512 support is available with Asus boards! Some of you may really love this but I am not sure if AVX512 was intended or QA'd by Intel, VRM limits may not be set for high OCP limits with AVX512. I encountered OCP with AVX512 at 5.2 ghz, so if you encounter it, you can change CPU Current Capacity in Digi+VRM.
To use AVX-512, please disable all of the E-cores. The AVX512 offsets and clipping are available just like they were and described in the Rocket Lake Z590 guide.
*MEMORY STUFF and DDR5*
DDR5 operates in 2x32 bit mode rather than 1x64 bit mode. Power management (PMIC) has also been moved from the motherboard to the memory, so the memory itself manages the voltages.
The new changes to the bank structure means that two sticks of DDR5 are operating in the equivalent of "Quad channel" mode when compared to DDR4. DDR4 and DDR5 memory should no longer be compared on an apples to apples level due to the number of changes.
There are two channels per dimm and two memory controllers on the DDR5 side so the dims operate in quad channel mode for 2 sticks. CAS latency seems to have a lesser effect on latency on DDR5 than 4, for example. Max Trefi can go up to 262k, but there is no noticeable benefit from going higher than 65535, and a lot of risk of increasing stability problems with high heat. TRCD/TRP can now be set separately, focus on these for your overclocks, as well as the subs.
Yeeted tREFI may also risk an instant BSOD when you stop a stress test when the memory heats up or when you use sleep mode.
PMIC defaults to 1.10v for VDD and VDDQ. Some memory modules may want up to 50m-100mv higher VDDQ than VDD when overclocking. A "high voltage" mode allows higher than 1.43v, however this is an actual register toggle within the memory itself. Some modules are not compatible with this register, so enabling it will just reset the voltage back to default, or prevent booting at all. More accurately it uses a target voltage based on 10mv resolution calculation rather than 5mv, which means the real voltage will be much lower than what you think you set, if you are using incompatible sticks.
PMIC voltages's are usually synched together per channel but can be set separately both per channel AND per Dimm. There are three switching rails, VDD, VDDQ and VPP. VCCSA (System Agent) is still there. I have been unable to test changing this as my Micron sticks do not go much higher than 5200 XMP (5600 did work with a lot of difficulty).
Power rails have been simplified on the motherboard. There are two master rails, VCCIA and VCCAUX (sorry I don’t remember the exact names). IA rail controls Vcore and vGPU. AUX rail controls everything else (SA, FIVR, etc).
PMIC is on the memory which controls the voltage the memory actually runs at (VDDQ, VDD etc).
This is sourced from the motherboard’s 5V supply. As mentioned above, some modules have a high voltage bit which can allow more than 1.435v.
Secure Pmic mode: cannot be adjusted in windows. Allows up to 1.435v. Compatible with all 5mv resolution
OC Pmic: can be adjusted in windows. Can set yeet volts up to 2.070v. 10mv resolution
===================
Some values available in BIOS and should you care:
SPD Hub VLDO (1.8v): Don’t bother
SPD Hub (VDDIO) (1.0v): Don’t bother
Memory VDD voltage (definitely use it. 1.25v+ is good for OC)
Memory VDDQ voltage (1.2.5v+ is good for OC)
Memory VDDP voltage: Don’t bother.
Memory switching freq: not much help.
Memory current capacity: not really needed
System Agent: 1.25v+ (ask cstkl1 about this, there seem to be some issues with high system agent and some memory settings
Memory controller voltage (external): 1.25v+ for OC
Transmitter VDDQ (max to any high limit VDD, VDDQ).
So tl;dr: concern yourself with vdd, vddq, VCCSA, MC VDD, TX VDDQ.
===========
ROG Shamino’s rule of memory voltages:
===========
Typically the higher the density, the lower the V tolerance, eg, V for 4*DR< V for 2*DR
Micron sticks:
SR modules typically can scale with VDDQ>1.35v while VDD may fail training >1.35v. So you may end up running something like 1.35v VDD + 1.435v VDDQ. SR module also like VDDQ to be ~ 50++mv-100mv higher than VDD so try to OV them asynch.
DR modules may have less V tolerance, so something like 1.25v VDD + 1.35v VDDQ will be what you end up maxing out at.
Some micron sticks may end up MORE stable fully loaded than idle. Be careful about idle BSOD’s. This may get worse if you start yeeting tREFI and end up BSOD’ing at the very end of a stress test.
1T Command rate will NOT work.
Hynix sticks:
SR modules typically can scale with VDD>1.3v while VDDQ may not need much over 1.25v. So you may end up running something like 1.35v VDDQ + 1.25v VDDQ. (inverse from what you see on micron) Similar for DR modules.
1.25v MC VDD works well for them. 1T command rate works with these.
Samsung Sticks:
Yes. Don’t need to say more.
Some modules do not like >1.25v Memory controller VDD, while some need it to scale for high frequencies.
You also need to scale the TX VDDQ according to VDD/VDDQ levels. A rule of thumb is to set it to the highest of either your VDD or VDDQ but try to not exceed 1.6v. Sometimes the FIVR rail will trip on you if you do.
Shamino’s rule:
For starters, you can just run 1.25v on both VDD and VDDQ for Hynix, 1.25VDD+1.35VDDQ for Micron, and 1.35VDD+1.35VDDQ for Samsung and let the BIOS decide on the rest for you by leaving them auto. You may also want to start with Asus Memory Presets.
Another strategy worth trying is:
Synch DRAM VDD with MC VDD, Synch TX VDDQ with DRAM VDDQ.
Default Gear mode for DDR5 is Gear 2 (Gear 1 will not work), with POR for 1 dimm per controller being 4800 mhz and 2 dimms per controller being 4000 mhz. The default base to clock ratio for DDR5 is 100:100, and unlike Rocket Lake, the 100:100 and 100:133 ratios seem to perform pretty well.
For the three gear modes (1/2/4), gear 2 requires that the dram ratio be divisible by 2, while gear 4 requires a divider of 4. So 4800 at 100:100 is fine. But 4900 is *NOT* since it’s not dividable by 2 or 4.
Gear 4 may only be worth using at 8000 mhz +.
DRAM Timings:
Use even numbers for TCL and TWCL, odd numbers don’t work.
TRP and TRCD can be individually adjusted. For questions about memory OC please ask cstkl1. I can’t help with memory OC.
Rough Description at Gear2:
Fmax VDD VDDQ TXVDDQ MC VDD SA Able to run CMD Rate 1T
2* Hynix SR 5800 1.3 1.25 1.25 1.25 1.25 yes
4* Hynix SR 5200 1.2 1.2 1.2 1.2 1.25 no
2* Hynix DR 5400 1.3 1.25 1.25 1.25 1.25 no
4* Hynix SR 4200 1.2 1.2 1.2 1.2 1.35 no
2* Micron SR 5600 1.35 1.4 1.4 1.34 1.2 no
4* Micron SR 5200 1.25 1.25 1.25 1.25 1.25 no
2* Micron DR 5400 1.25 1.25 1.25 1.25 1.2 no
4* Micron DR 4200 1.2 1.2 1.2 1.2 1.35 no
2* Samsung SR 5800 1.435 1.435 1.435 1.34 1.25 yes
4* Samsung SR 5200 1.35 1.35 1.35 1.25 1.25 no
You can definitely get 6000 and beyond, depending on lottery+ running with Hynix or Samsung but mem test stability depends on the IC quality. Watch your memory cooling at higher volts!
Next section: CPU Core OC
First, let me start by thanking Shamino @ ROG Asus for allowing me and the other testers to put this exciting new hardware through its paces and experiment with the new overclocking features and architecture changes, and for the hard work to get these boards running well with these new features.
Also I need to thank cstkl1 and RobertoSampiao for helping me write this. Without their help, I would never have been able to do this.
And VERY BIG thank you to Skatterbencher for his excellent, precise, clear cut youtube videos on explaining these features and helping me with this guide.
Disclaimer ! These settings and methods were tested on *ENGINEERING* Qualification Sample CPU's ("QS") and
pre-production boards, so it is possible that some features may perform differently, slightly differently
identically, or even not work at all on retail CPU's. While QS samples tend to reflect final retail hardware, there may still be undocumented differences, errata, thermal issues or features that may be present or not present on retail parts.
AVX-512 support is available with Asus boards! Some of you may really love this but I am not sure if AVX512 was intended or QA'd by Intel, VRM limits may not be set for high OCP limits with AVX512. I encountered OCP with AVX512 at 5.2 ghz, so if you encounter it, you can change CPU Current Capacity in Digi+VRM.
To use AVX-512, please disable all of the E-cores. The AVX512 offsets and clipping are available just like they were and described in the Rocket Lake Z590 guide.
*MEMORY STUFF and DDR5*
DDR5 operates in 2x32 bit mode rather than 1x64 bit mode. Power management (PMIC) has also been moved from the motherboard to the memory, so the memory itself manages the voltages.
The new changes to the bank structure means that two sticks of DDR5 are operating in the equivalent of "Quad channel" mode when compared to DDR4. DDR4 and DDR5 memory should no longer be compared on an apples to apples level due to the number of changes.
There are two channels per dimm and two memory controllers on the DDR5 side so the dims operate in quad channel mode for 2 sticks. CAS latency seems to have a lesser effect on latency on DDR5 than 4, for example. Max Trefi can go up to 262k, but there is no noticeable benefit from going higher than 65535, and a lot of risk of increasing stability problems with high heat. TRCD/TRP can now be set separately, focus on these for your overclocks, as well as the subs.
Yeeted tREFI may also risk an instant BSOD when you stop a stress test when the memory heats up or when you use sleep mode.
PMIC defaults to 1.10v for VDD and VDDQ. Some memory modules may want up to 50m-100mv higher VDDQ than VDD when overclocking. A "high voltage" mode allows higher than 1.43v, however this is an actual register toggle within the memory itself. Some modules are not compatible with this register, so enabling it will just reset the voltage back to default, or prevent booting at all. More accurately it uses a target voltage based on 10mv resolution calculation rather than 5mv, which means the real voltage will be much lower than what you think you set, if you are using incompatible sticks.
PMIC voltages's are usually synched together per channel but can be set separately both per channel AND per Dimm. There are three switching rails, VDD, VDDQ and VPP. VCCSA (System Agent) is still there. I have been unable to test changing this as my Micron sticks do not go much higher than 5200 XMP (5600 did work with a lot of difficulty).
Power rails have been simplified on the motherboard. There are two master rails, VCCIA and VCCAUX (sorry I don’t remember the exact names). IA rail controls Vcore and vGPU. AUX rail controls everything else (SA, FIVR, etc).
PMIC is on the memory which controls the voltage the memory actually runs at (VDDQ, VDD etc).
This is sourced from the motherboard’s 5V supply. As mentioned above, some modules have a high voltage bit which can allow more than 1.435v.
Secure Pmic mode: cannot be adjusted in windows. Allows up to 1.435v. Compatible with all 5mv resolution
OC Pmic: can be adjusted in windows. Can set yeet volts up to 2.070v. 10mv resolution
===================
Some values available in BIOS and should you care:
SPD Hub VLDO (1.8v): Don’t bother
SPD Hub (VDDIO) (1.0v): Don’t bother
Memory VDD voltage (definitely use it. 1.25v+ is good for OC)
Memory VDDQ voltage (1.2.5v+ is good for OC)
Memory VDDP voltage: Don’t bother.
Memory switching freq: not much help.
Memory current capacity: not really needed
System Agent: 1.25v+ (ask cstkl1 about this, there seem to be some issues with high system agent and some memory settings
Memory controller voltage (external): 1.25v+ for OC
Transmitter VDDQ (max to any high limit VDD, VDDQ).
So tl;dr: concern yourself with vdd, vddq, VCCSA, MC VDD, TX VDDQ.
===========
ROG Shamino’s rule of memory voltages:
===========
Typically the higher the density, the lower the V tolerance, eg, V for 4*DR< V for 2*DR
Micron sticks:
SR modules typically can scale with VDDQ>1.35v while VDD may fail training >1.35v. So you may end up running something like 1.35v VDD + 1.435v VDDQ. SR module also like VDDQ to be ~ 50++mv-100mv higher than VDD so try to OV them asynch.
DR modules may have less V tolerance, so something like 1.25v VDD + 1.35v VDDQ will be what you end up maxing out at.
Some micron sticks may end up MORE stable fully loaded than idle. Be careful about idle BSOD’s. This may get worse if you start yeeting tREFI and end up BSOD’ing at the very end of a stress test.
1T Command rate will NOT work.
Hynix sticks:
SR modules typically can scale with VDD>1.3v while VDDQ may not need much over 1.25v. So you may end up running something like 1.35v VDDQ + 1.25v VDDQ. (inverse from what you see on micron) Similar for DR modules.
1.25v MC VDD works well for them. 1T command rate works with these.
Samsung Sticks:
Yes. Don’t need to say more.
Some modules do not like >1.25v Memory controller VDD, while some need it to scale for high frequencies.
You also need to scale the TX VDDQ according to VDD/VDDQ levels. A rule of thumb is to set it to the highest of either your VDD or VDDQ but try to not exceed 1.6v. Sometimes the FIVR rail will trip on you if you do.
Shamino’s rule:
For starters, you can just run 1.25v on both VDD and VDDQ for Hynix, 1.25VDD+1.35VDDQ for Micron, and 1.35VDD+1.35VDDQ for Samsung and let the BIOS decide on the rest for you by leaving them auto. You may also want to start with Asus Memory Presets.
Another strategy worth trying is:
Synch DRAM VDD with MC VDD, Synch TX VDDQ with DRAM VDDQ.
Default Gear mode for DDR5 is Gear 2 (Gear 1 will not work), with POR for 1 dimm per controller being 4800 mhz and 2 dimms per controller being 4000 mhz. The default base to clock ratio for DDR5 is 100:100, and unlike Rocket Lake, the 100:100 and 100:133 ratios seem to perform pretty well.
For the three gear modes (1/2/4), gear 2 requires that the dram ratio be divisible by 2, while gear 4 requires a divider of 4. So 4800 at 100:100 is fine. But 4900 is *NOT* since it’s not dividable by 2 or 4.
Gear 4 may only be worth using at 8000 mhz +.
DRAM Timings:
Use even numbers for TCL and TWCL, odd numbers don’t work.
TRP and TRCD can be individually adjusted. For questions about memory OC please ask cstkl1. I can’t help with memory OC.
Rough Description at Gear2:
Fmax VDD VDDQ TXVDDQ MC VDD SA Able to run CMD Rate 1T
2* Hynix SR 5800 1.3 1.25 1.25 1.25 1.25 yes
4* Hynix SR 5200 1.2 1.2 1.2 1.2 1.25 no
2* Hynix DR 5400 1.3 1.25 1.25 1.25 1.25 no
4* Hynix SR 4200 1.2 1.2 1.2 1.2 1.35 no
2* Micron SR 5600 1.35 1.4 1.4 1.34 1.2 no
4* Micron SR 5200 1.25 1.25 1.25 1.25 1.25 no
2* Micron DR 5400 1.25 1.25 1.25 1.25 1.2 no
4* Micron DR 4200 1.2 1.2 1.2 1.2 1.35 no
2* Samsung SR 5800 1.435 1.435 1.435 1.34 1.25 yes
4* Samsung SR 5200 1.35 1.35 1.35 1.25 1.25 no
You can definitely get 6000 and beyond, depending on lottery+ running with Hynix or Samsung but mem test stability depends on the IC quality. Watch your memory cooling at higher volts!
Next section: CPU Core OC
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02-13-2022 05:03 AM
Mappi75 wrote:
@Chainbold
You mean:
VDD (SWA) Voltage
VDDQ (SWB) Voltage
you use 1,28v ?
Then IVR TX VDDQ must/will be in the same area of 1,28v - right?
VDDQ TX can mostly be left in auto, however, it can sometimes help stability if set over VDDQ when pushing higher frequencies.
Tigra456 wrote:
I would test it. * But the mem-temp can be a Strix-F only problem? *Then it must be a problem for all boards ? Im able to play with 6000c36 for hours but Testmem is not fully stable. So the question is: A Bad Bios Support ? B RAM defect or not binned good enough from Gskill *I would change the voltages but im not sure witch voltages crates more heat and which ones must be in the voltage area xx? to stabilize.
Memory being sensitive to temperature comes down to the condition of the overclock and the memory IC, much less about the board when talking about mechanisms most users understand. The answer is to either reduce the OC or try active cooling
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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02-21-2022 08:02 AM
Silent Scone@ROG wrote:
Memory being sensitive to temperature comes down to the condition of the overclock and the memory IC, much less about the board when talking about mechanisms most users understand. The answer is to either reduce the OC or try active cooling
Thank you for this thread. It helped me a lot finding some stable configurations, but still a long way to go. I am on Extreme Glacial with four sticks of non-RGB G.Skill 6400 Hynix 32-39-39-102. Active water cooling with Bitspower DRGB block, and memory temps are around 45C-50C after 5-6 hours of memtest (36C idle). So far these are the highest I could get:
5400 @ 32-32-32-96 VDD 1.4 VDDQ 1.4
5600 @ 40-40-40-102 VDD 1.4 VDDQ 1.38
Nothing beyond 5600 works no matter how much I raise VDD and VDDQ. Sometimes it boots up but would not pass memtest. I even tried raising the timings to 60-60-60-114 but still no luck with 6000 or 6200. BIOS is 1102. I have tested a lot of configurations for days for many hours a day, so appreciate any tips or clues.
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02-22-2022 12:15 AM
Simon77 wrote:
Thank you for this thread. It helped me a lot finding some stable configurations, but still a long way to go. I am on Extreme Glacial with four sticks of non-RGB G.Skill 6400 Hynix 32-39-39-102. Active water cooling with Bitspower DRGB block, and memory temps are around 45C-50C after 5-6 hours of memtest (36C idle). So far these are the highest I could get:
5400 @ 32-32-32-96 VDD 1.4 VDDQ 1.4
5600 @ 40-40-40-102 VDD 1.4 VDDQ 1.38
Nothing beyond 5600 works no matter how much I raise VDD and VDDQ. Sometimes it boots up but would not pass memtest. I even tried raising the timings to 60-60-60-114 but still no luck with 6000 or 6200. BIOS is 1102. I have tested a lot of configurations for days for many hours a day, so appreciate any tips or clues.
Settle for where you are now. 4x16 6K+ isn't possible. That's why there are no kits in that density and speed.
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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02-22-2022 07:04 AM
Silent Scone@ROG wrote:
Settle for where you are now. 4x16 6K+ isn't possible. That's why there are no kits in that density and speed.
Thank you. I guess it is time to give it a rest. I read your other post about modules from different kits not being from the same bin and that makes sense now why they do not work together.
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03-08-2022 04:54 AM
@safedisk posted new bios 1304
ASUS ROG MAXIMUS Z690 APEX | APEX 14
ROG MAXIMUS Z690/STRIX Z690 Series Beta Bios 1304
01. Improve system performance
ROG MAXIMUS Z690 HERO BETA BIOS 1304
ROG MAXIMUS Z690 FORMULA BETA BIOS 1304
ROG MAXIMUS Z690 APEX BETA BIOS 1304
ROG MAXIMUS Z690 EXTREME BETA BIOS 1304
ROG MAXIMUS Z690 EXTREME GLACIAL BETA BIOS 1304
ROG STRIX Z690 Series Beta Bios 1304
01. Improve system performance
ROG STRIX Z690-A GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-A GAMING WIFI D4 BETA BIOS 1304
ROG STRIX Z690-E GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-F GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-G GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-I GAMING WIFI BETA BIOS 1304
ASUS ROG MAXIMUS Z690 APEX | APEX 14
ROG MAXIMUS Z690/STRIX Z690 Series Beta Bios 1304
01. Improve system performance
ROG MAXIMUS Z690 HERO BETA BIOS 1304
ROG MAXIMUS Z690 FORMULA BETA BIOS 1304
ROG MAXIMUS Z690 APEX BETA BIOS 1304
ROG MAXIMUS Z690 EXTREME BETA BIOS 1304
ROG MAXIMUS Z690 EXTREME GLACIAL BETA BIOS 1304
ROG STRIX Z690 Series Beta Bios 1304
01. Improve system performance
ROG STRIX Z690-A GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-A GAMING WIFI D4 BETA BIOS 1304
ROG STRIX Z690-E GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-F GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-G GAMING WIFI BETA BIOS 1304
ROG STRIX Z690-I GAMING WIFI BETA BIOS 1304
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03-30-2022 11:40 PM
test
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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03-30-2022 11:47 PM
ROG MAXIMUS Z690 Series Beta Bios 1403
01. Update microcode 0x01F version
02. Improve system performance
ROG MAXIMUS Z690 HERO BETA BIOS 1403
ROG MAXIMUS Z690 FORMULA BETA BIOS 1403
ROG MAXIMUS Z690 APEX BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME GLACIAL BETA BIOS 1403
01. Update microcode 0x01F version
02. Improve system performance
ROG MAXIMUS Z690 HERO BETA BIOS 1403
ROG MAXIMUS Z690 FORMULA BETA BIOS 1403
ROG MAXIMUS Z690 APEX BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME GLACIAL BETA BIOS 1403
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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04-02-2022 09:05 AM
Silent Scone@ROG wrote:
ROG MAXIMUS Z690 Series Beta Bios 1403
01. Update microcode 0x01F version
02. Improve system performance
ROG MAXIMUS Z690 HERO BETA BIOS 1403
ROG MAXIMUS Z690 FORMULA BETA BIOS 1403
ROG MAXIMUS Z690 APEX BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME BETA BIOS 1403
ROG MAXIMUS Z690 EXTREME GLACIAL BETA BIOS 1403
What "Improve system performance" means?
In every benchmarks I see no improvements in system performance.
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10-13-2022 01:51 PM
For whatever reason I simply can't get my Kingston KF556C40BBK2-64 ram to pass Memtest86 under BIOS 2004 @ XMP 1 or 2, all things being equal under my current modest AI OC, otherwise all error free under BIOS 1601 so not certain what's going on with 2004. This ram btw is very good albeit just 5600 but I don't really need any faster atm, more than adequate for gaming.
update: disregard, fixed with BIOS 2103, updated Intel ME passes MemTest now.
update: disregard, fixed with BIOS 2103, updated Intel ME passes MemTest now.
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