win32asmguy
-
Posts
531 -
Joined
-
Last visited
-
Days Won
3
Content Type
Profiles
Forums
Events
Everything posted by win32asmguy
-
Sweet, will be glad to hear results. If anything practicing a delid on the 12600 is probably better than a good bin 12900k, it would be horrible to destroy a good one if an accident happened with the delid. Oh, BTW, Clevo posted some updated drivers, here: https://www.clevo.com.tw/clevo_down.asp?lang=en Just select the NH55JNN model from the dropdown.
-
The Eurocom bios is modified compared to the stock Clevo bios. Still not as much options as Prema, but more than Clevo offers by default. @jaybee83 If you happen to decide to pick up a K series CPU, and dump the setup options for this older bios, and disable the overclocking lock, I would be curious if undervolting P-cache doesn't trigger a crash on your system. The BGA HX chips aren't particularly special, if they were excellent bin's then it could score ~24000 CBR23 at 125W as well, correct?
-
BIOS 1.07.05RPCS1 / EC 1.07.04, dated 4/16/2022. I think the newer bios has higher CPU temp throttling limits as it can sustain over 90C without dropping PL1. I haven't been able to get the GPU to boost above 115W, even in performance mode with PL1/PL2 capped to 45W and trying a few different drivers. Does yours go up to 140W? For BGA models I would be more interested in the Dell Precision 7770 with 12900HX and 3080Ti, even with it needing the CAMM memory modules.
-
Which bios version did pcs ship? Was there good ihs contact after changing the pads? Also curious if yours does have the mux option in the bios.
-
Yeah just 3.70. Did you find an issue with it? I only really used it to set the keyboard backlighting then uninstalled. I did notice that the profile switcher always thought the system was in entertainment mode. No fingerprint sensor. I took mine with me on a flight with two connections yesterday. Way easier to travel with than the X170 and get through security. You can't really even tell it has an LGA CPU.
-
Yeah, I will try a 12900k from Micro Center next week and go from there. Still undecided on the Z690 board as I need to figure out what I would want to do with it after the testing.
-
Yep. My other thought was just to send my locked 12900 over to rockitcool for a copper relid for $70, then just post a perpetual WTB binned 12900k on some forums in hopes that someone might want to move to a KS or in preparation for RPL.
-
Thanks for all the testing and insight. Sounds like it will probably take going through many chips to find a good one. It's too bad the 12900ks does not help the chances, I would happily pay $200 more for one if it could be a good performer at 125W. I am also worried that a higher percentage of good 12900k chips are destined to be sold as 12900ks now so Intel can profit more from them...
-
I could also pick up a motherboard from Micro Center to try and better test these CPU's. I have all of the other parts for such a test bench although the NH-D15S may still be a limiter. Tomorrow BGA Alder Lake HX CPU's should be announced as well, so we may have a couple tech influencer reviews showing how performance compares. I keep meaning to run Geekbench to see how it compared to a leaked Legion 7i with 12900hx. Although with the prices for 12900hk I would not be surprised to see most of these potential models to be over $3500 even with 3070ti.
-
The fans are quieter than the X170KM. They do not "stair step" as they are ramping up and down. The CPU seems to always be running even with package temp under 40C at idle. I think the fans may be of higher quality too so pushing more CFM at lower noise. Undervolting helps even more but not really something viable for day to day use unless those e-cores are disabled. Also so far I do not think any of the Linux undervolting utilities have added Alder Lake support. On ongoing issue I have not mentioned so far is that in Windows 10 the internal speakers are not so great. There is a supplemental package related to Sound Blaster Cinema 6 which won't install on Win10. Any success with the H660 motherboard? I thought maybe about picking up a different 12900K from Micro Center next week to see if its any better than the one from Best Buy.
-
157W is pretty high. With a good 12900HX, quality paste job, and undervolting it should have no problem exceeding even the 23000 CBR23 multicore score I can get with the new Clevo DTR and a 12900k limited to 125W. It will be fun to see some results when they are out.
- 972 replies
-
- 1
-
-
- dell precision 7770
- dell precision 7670
- (and 6 more)
-
Yeah I think its a bios bug. To clarify further if I set Core offset it does show the value as applied (and persists across warm reboots) but when running a benchmark there is no change in observed voltage, load core ratios, or score. If I set even -1mV to P Cache, it crashes, reboots and now shows lower voltage under load, higher ratios and higher score. Oh, and just to rule out software I tried uninstalling XTU, and also tried applying the undervolt via the QuickCPU utility where it also crashed only applying P Cache offset.
-
Glad to hear Prema is aware of this model. So I actually do not have the virtualization stuff enabled already in Windows 10 21H2. I have determined the crash is related to adjust CPU P Cache only - so adjusting CPU Core or CPU E Cache does not trigger the crash. Oddly enough, if you don't adjust P Cache to any offset value then any Core undervolting applied does not take effect either. Maybe a weird bug with Throttlestop + H670? I am curious what @electrosoft's good bin 12900k scores at 125W PL1/PL2, just as a baseline against what mine is doing.
-
Just the tools linked in the guide. You can see the setup menu dump in the earlier post: Keep in mind that the offsets may be different if you have a different bios version on your machine from PCS, best to just dump it from your own machine to ensure things will work. The one from Eurocom was already very recent, built 4/16/2022 which was just a few days before mine shipped. It also has some interesting stuff in it, like options to configure four e-core clusters instead of just two, which may mean Raptor Lake support is be baked into the feature set with a microcode update. It would be funny if we could put one of those in to this machine on release day.
-
It will persist through warm boots, but is lost if you cold boot (maybe standby/resume as well). So far I have not found a bios option that can store a known stable undervolt (as you might do using a real desktop H670 board). Here is the EFI commands that must be run to allow undervolting via Throttlestop: # based on Eurocom Raptor X15 BIOS 1.07.05RPCS1 / EC 1.07.04 dump setup_var CpuSetup 0x43 0x0 # disable Config Lock setup_var CpuSetup 0x10e 0x0 # disable Overclocking Lock setup_var CpuSetup 0x1d9 0x1 # enable Overclocking Feature Here is a good blog post explaining the whole process, but you can start at Step 5 to make a bootable USB to modify the variables. Note that if you ever get a black screen from modifying things you can always remove the main and backup battery, and hold the power button down for 30 seconds to reset to factory defaults. https://brendangreenley.com/undervolting-2020-dell-laptops-like-the-vostro-7500-and-more-tips-to-improve-thermals-battery-life-and-speed/#cpu-undervolt
-
It does appear to be a bug of some sort. I eventually realized that even when it crashes after applying an undervolt, the value is still set after reboot and the system is stable. So 23,200 is possible in that scenario with CBR23 with a -90mV on core and P-cache with P-cores around 4ghz and 125W draw and max fans active with the system on a laptop stand, and the 3070Ti active at idle clocks just to drive my external display. CCC is not very useful. It can set keyboard backlight colors, switch performance profiles, or adjust the fan curve. I think the better, aftermarket heatsink could be a real possibility. If Clevo had added an extra mDP wired to the iGPU I would be much happier with forced hybrid graphics. I want all connected displays driven by the same GPU to simply the software configuration on Windows and Linux. I doubt Clevo will make a 17 inch variant of this model. It would likely be an X170 refresh with its own different limitations.
-
Any offset causes causes an instant crash. I tried -5mV, also even +5mV causes a crash as well. It only crashes if e-cores are enabled. If I could have Clevo change anything on this chassis it would be to make a variant with no Nvidia, make the USB-C support Thunderbolt 4, and put an excellent 6-pipe to dual fan cooling solution so going to 200W could be done with a Z690 chipset and full overclocking support and a binned chip, and a larger battery. I know most people want a GPU, but I still wish there was a CPU-focused DTR like this.
-
Would using VF Offset Points help? I tried searching around for 12th gen undervolting guides and noticed a few mentioned that instead of using a static offset. The crash occurred at idle after applying the static offset with e-cores enabled.
-
Eurocom told me that there is only one heatsink for all models. They also told me that the MUX may have been disabled after the manual was created. I am still hoping the chip is present on the system board and maybe a future bios update will fix it. They gave me a Control Center version 3.70 on a thumb drive with the rest of the Windows 10 drivers so I will try it. So with the e-cores enabled any undervolt seems to be causing an immediate crash. Does Core/Pcache/Ecache need to be adjusted in unison? Or is there some other trick I am missing. I know you mentioned Load Line Calibration before as well, I have not looked into that.
-
- XMP: The bios has hidden options allowing a custom profile or XMP profiles to be selected. I did try setting a custom profile but I got the ratio/speed incorrect so it could not boot. XMP should be more forgiving. - Gpu overclocking: It has the GPU Performance Scaling option in the bios so maybe. - Clevo Control Center: I have not installed it - XTU: Yes it works but P-core undervolting was grayed out. TS was perfectly happy to apply an undervolt with the same bios configuration so maybe XTU sees the "H670" chipset and disables stuff in its UI - Battery Life: I did not specifically lock things down to lowest multipliers, but on a clean boot with the 3070Ti not in use I saw about 18W idle power draw. So maybe 2-3 hours. I think a good bin K series, delidded, is a must if you want the most out of what this chassis can give. I have not tried with the e-cores enabled yet.
-
Ok I purchased a 12900k and just swapped it out. Undervolting is now possible via Throttlestop. Out of the box this 12900k scores 17000 instead of 16000 (just p-cores active again). Close to 18000 with a -75mv undervolt, 4.4 to 4.2 on all cores still 120W draw. Now I have to decide if I am going to try and have a awkward conversation with Eurocom to see if they will exchange for a different CPU as the one I purchased cannot undervolt.
-
I am starting to think the non k 12900 cannot undervolt. I tried configuring an all core and per-core undervolt via the hidden bios options and nothing would take effect. I have not seen total system power to exceed 235W. The GPU just stays at 115W and the CPU at 120W. I have not really seen the GPU go up to 140W either. RJTech will only offer it if Sager does as well. Eluktronics might pick it up as well.
-
I have seen as high as 4.1 at the start of a multicore test. Max power consumption observed is 130W, and it always has EDP OTHER in limit reasons. THERMAL appears as soon as it hits 100C. It can sustain 5.1 single just fine. Still no luck on getting undervolting configurable in Throttlestop even with OcLock/CfgLock disabled and "OverClocking Feature" enabled. Maybe I can try manually specify a voltage offset via those options. No idea if the EC allows it to draw more than the rated 11.8A at 19.5v for the 230W brick. But I would certainly consider a 280W brick if it does not heat up as much as the 230W under load. I have not tested the GPU much so no idea if the EC imposes a lower PL1 if the GPU is under load.
-
Note that it is the single pin barrel connector, not the 4-pin that was used on models like the P775TM and Tornado F5. So, when I look at HWInfo64 it says the 12900 has a max 7-8c ratio limit of 47x, so there is certainly room for more. I want to get the overclocking lock disabled so I can try undervolting as well. Temps were actually higher with the e-cores disabled. 3.8ghz was with the e-cores disabled.
-
Actually I was just going to reply, yes I did rerun CBR23, multi score was 16100 after disabling the E-cores, at the same 125W draw. It appears their is some limit imposed at 125W as I have yet to see power draw beyond that even with using Throttlestop, and the Clevo default to 150W PL2. Throttlestop reports it as "EDP OTHER" in the limit reasons panel. The score with E-cores disabled seems low to me, I would expect it to surpass the 11900K much more than that. Although it was only at 125W / 3.8ghz all core clock speeds, so maybe it is accurate. Oh and the power plug is a barrel connector not the the rectangular plug. It is used on quite a few clevo laptops.
