win32asmguy
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Everything posted by win32asmguy
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Maybe one of the panel manufacturers Lenovo uses has a Gsync bug? Iirc they use BOE, CSOT/TCL and AUO for that panel.
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This machine is definitely more challenging to tune. Over the course of a week the temperature deltas had grown by another 10C (71C coldest, 100C warmest) so I pulled the heatsink back off and it appears the paste had pumped out. Repasted and reassembled and its back to where it was before. I am also ordering some Honeywell PTM7950 from China which is supposed to be more resistant to pump out and offer better thermal transfer.
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Maybe this is helpful? https://www.techpowerup.com/review/intel-core-i9-12900k-e-cores-only-performance/7.html Granted, the e-cores are subject to the same silicon lottery as P-cores so an excellent or poor sample could inaccurately represent what to expect. They are probably not as efficient at 3.9ghz in the 12900k as they are at 3.4ghz as well, so maybe more testing would be good using a system that can freely adjust the multiplier range. That being said I think the battery life is pretty good on the Precision so long as you take steps to ensure the Nvidia GPU is not activated unless it is needed. You can create a power mode for battery with P-core turbo limited to 4.0-4.2ghz which is definitely in the sweet spot of their efficiency.
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I mostly only did the CPU side because of these reasons: Ran out of time and wanted to just get it reassembled Lack of proper tools (really need plastic tweezers and scissors / cutting knife and mat to properly create the custom pads) No good resource of guides (tried looking back into NBR archives for that, or youtube) Issues with eyesight and lighting I think going back and doing the GPU side is a good idea as Nvidia has a sliding clockspeed scale depending on temperatures, so a core at 60C will benchmark faster than a core at 75C even if its not technically thermally throttling. If I remember correctly HID Evolution used to offer CTO Precisions through their repaste / repad services. It could be quite valuable if a turn key "excellent" job is required.
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I was curious where you purchased these bricks? Eurocom wants 250USD for these which is quite a bit.
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Yeah, unfortunately it still cannot be sustained at that level. It eventually settles back to 85W scoring about ~18500 in each CBR23 loop and still thermal throttling with P-core temp deltas still 16C. This model is worth tuning as it is the only option with HX cpu, 17 inch FHD display, 3080ti, Windows 10 support and a TB4 port mux. It also gets over 8 hours of battery life in light usage scenarios with my config so its also superior to the Clevo NH55J in that regard. The only downside is that only modern standby is supported so I have that disabled and only completely power off the machine or use hibernate.
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I replaced the thermal pads today on the CPU side with some mid grade 12.8W/mK and now performance has jumped over 15%, CBR23 Multi scores without undervolting was 20634 with e-cores enabled. This was with Phobya Nanogrease Extreme. I did not do exactly a great job with the repad. My vision is not great these days nor my ability to make the precision cuts and hold them steady dropping into place, but this is still a great improvement over the factory job. I will post an image with the pad thicknesses marked later. Aaron I hope you do not mind me borrowing the photo you took for the pad measurements.
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I enabled undervolting and tested -75mV P-core and P-cache, which scored 14750 CBR23 with e-cores disabled at 75W pull.
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Yes, Throttlestop 9.5 to adjust the power limit. As far as IA AC/DC LoadLine it can be modified by an EFI setup variable (just like the undervolting guide uses for Config Lock/ Underclocking Lock) setup_var CpuSetup 0x132 0xAA # set IA AC LoadLine LSB to 170 (1.7mOhms) setup_var CpuSetup 0x133 0x0 # set IA AC LoadLine MSB to 0
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The Precision 7770 arrived yesterday. Everything great other than CPU performance. CBR23 Multi is ~17000 with e-cores enabled, ~12000 with e-cores disabled. There was thermal throttling limiting the system to 85W, so I repasted with Phobya Nanogrease Extreme and it is slightly better and throttles around 92W. There is still a contact issue as core temperature deltas are still 15C. The good news is the bios setup variables are not write-locked so we can enable UV and tune other settings as needed. I already noted that IA AC/DC LoadLine was incorrectly set to 4.0/1.7 mOhms, so I adjusted it to 1.7/1.7 which is essentially Intel baseline value and the same as the Thinkpad P16. That improved CBR23 scores by about 8%.
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If you are in the USA you can try signing up for a stock notification from the MSI Store directly: https://us-store.msi.com/Laptops/content-creation/creatorpro-series/CreatorPro-X17-A12UMS-057 If you do manage to get one do you mind testing the TB4 video outputs on it and see if they connect to the integrated or dedicated graphics? I am also curious if the default keyboard backlight scheme is just plain white so it can be used in an office environment without any config override needed. I am also curious if the memory can operate at 4800MT/s in a one dimm per channel configuration (two sticks total max 64GB). That would set it apart from the Thinkpad P16 which is 4000MT/s regardless of how many modules are installed.
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From what I understand some chips leak more power under load than others. This is similar to the measurement Nvidia used to report as ASIC quality on their GPU's. It is very hard to measure on a laptop without access to VR VOUT monitoring other than just observing a chip running hotter than others for no other reason. You can also measure a voltage variance between the same SKU. Some 12950HX can operate at 4.2ghz at 0.950v while others may need 1.150v. Obviously the ones that need more voltage to be stable at a frequency will consume more power to do the same work, or do less work at the same power / thermal limit cap.
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Does your Windows 11 environment have core isolation / VBS disabled?
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There is a video discussing DTR-related issues on the GT77: Maybe the CreatorPro X17 is better though in both some hardware differences and software improvements. I am curious if it has a membrane keyboard instead of the mechanical used on the GT77. I am also curious if any of the display outputs are wired to the Intel GPU in hybrid mode.
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*Official Benchmark Thread* - Post it here or it didn't happen :D
win32asmguy replied to Mr. Fox's topic in Desktop Hardware
They had one model WT75 with modular CPU and GPU. It came with a Quadro GPU but could take the MSI 1070 MXM card. Sadly no supplementary power connector so ~180W was its limit with a modded VBIOS. 9900k could go up to 200W with IMON_SLOPE hacks but I only had a single 330W instead of dual 230W so no idea if it could support that in combined loads. It even had a MUX so it could get 5 hours of battery life in iGPU mode with some tuning. Alot of people hated on its 120hz FHD TN panel but it was a good panel with great response times given the other options at the time. The NH55J is more powerful, sure, but the feature set of the WT75 was so much better. -
No SSD door on mine. But it is in production now. Maybe the bottom panels on Taobao/eBay were from a different production run or something, it is hard to even say if the fitment is correct without trying one.
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- dell precision 7770
- dell precision 7670
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Hmmm. Maybe they had a bad batch of bottom panels produced and they had to have their supplier run a new production of corrected versions. It could explain why almost every 7770/7670 has not entered production yet.
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I got the SlimQ 240W charger. It works ok with the NH55JNNQ although the barrel connector is slightly loose when plugged in. It has the added advantage of USB-C charging, so I can use it to charge my 13 inch MBP which I also carry as Hackintoshing is not possible with the newer laptops. Its a shame they do not have a custom tip for the X170 series, would make a very lightweight 480W travel power adapter kit with two of them. I also caved and bought a regular US keyboard layout from China for $50, as Eurocom was unresponsive. Still have not delidded the 12900k. sigh. Spent most of our weekends taking day trips. Even today decided to drive up to Estes Park in Colorado which is about an hour from where we live.
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G-Sync is supported on external displays. On the internal panel, adaptive sync should work fine if enabled via the Intel Command Center app. I do not have a HDMI 2.1 capable display so I cannot test that out.
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I tried the Razer Core X last night and confirmed it does not charge the laptop. There was also a bios update this morning so I applied it; still no USB-C charging working. It might still be enabled via a future bios update. I do not have any Lenovo branded USB-C chargers to test unfortunately, in case there have a charger white list.
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I also tried a Dell display that supports 65W USB-C power delivery at the office. The only other device I have is a Razer Core X eGPU that I can test tonight. It is possible the hardware support is present for but it needs a bios update for it to be enabled.
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I have bad news. I do not think the P16 supports charging the battery (while powered off) or operation off of USB-C power sources. So you must use the AC Adapter. I tested it with the Apple 96W (20.5v 4.7a) USB-C AC Adapter. There is also a post from a Lenovo rep about the P15 Gen 2 last year saying the same thing. I believe there is an aftermarket 240W GAN brick with a compatible tip if you are looking to reduce the total travel weight.
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It can run Linux fine as I do on mine. I am guessing what they did here was all calculated to increase the entertainment value. The sad part is NONE of the big Youtube personalities / influencers can really give Clevo laptops with LGA sockets a fair shake, other than maybe derbauer. They don't even understand the point which is to leverage the socket to utilize high quality silicon.
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Yep. I also tried modifying the EFI setup variables (Overclocking Lock/Config Lock) to enable it, no dice as writes just result in a failure. I think it may be something about this being WM690 chipset, or maybe I missed disabling one of the dozen security related features in the bios.
