win32asmguy
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Everything posted by win32asmguy
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It was delidded but the IHS was in the same plastic packaging as the CPU without any tape to hold the packaging shut tight. So it looks like the IHS worked the packaging slightly open then started rubbing against the CPU PCB. The photo of it from the listing looks like those SMD's were intact and his rating was high. So it looks like with the cache the magic number is 40x where I can undervolt and it doesn't crash with 10 mins CBR23. It is still kind of strange though as 47x is stable with a reboot.
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Yep, got a case opened with eBay. Shame though as I was really looking forward to trying it out. In other news, I finally seem to have an idea why P-cache undervolt was crashing. It appears that it is related to the cache speed which is 47x by default and may be too high at least with E-cores enabled. I tried 43x which did not crash immediately but instead after completing a CBR23 run. I think cache undervolting is very important on this system, because it seems to share that limited power budget between the cores and cache. Less power used by the cache means more that the cores can use, correct?
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I got the golden 12900k from Fedex today. Sadly it appears to have been damaged in transit. The IHS was loose and broke off five SMD devices on the CPU. I was only able to find four of the broken off devices in the foam packaging.
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It would always thermal throttle on one run, even with a custom fan profile with both set to maximum speed, and on a cooling pad with low room temperatures. I think it had a poor liquid metal application but I did not want to hassle with it given the issues with booting Linux and the gaudy chassis. It also would worry me because if the expensive BGA CPU+GPU motherboard failed they may try to blame the failure on a repaste during an RMA. So, the best way to purchase a Strix Scar 17 SE would be through a reseller so you can pay them to repaste if needed and they guarantee their modification work in the event of an RMA. Technically the same advice applies to the MSI laptops as well.
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It would burst up to 175W, but settle around 140W due to thermal throttling. Try running it again but in the default "Smart AI Auto" profile. I think that one allows beyond 115W sustained.
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How much power does the CPU report being consumed while it runs the test? In HWInfo64 it is listed under "CPU Package Power". In theory it should be able to go up to 180W, but may drop depending on thermal throttling or if the system decides to limit power consumption. For these chips Intel tests them at the factory, and sets a predefined curve of voltages at a given frequency, similar to how Nvidia sets up their GPU's (if you have ever messed with that in Afterburner). So one chip may have lower voltages from the factory depending on its quality, despite both being called "12800HX". So far we have observed this performance delta to be up to 10% with the 12900k.
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Are you able to comment on power limits allowed by the 12950HX, when the 7770 is in its highest performance mode, and the dedicated graphics is idle? Thanks!
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- dell precision 7770
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Yes. Here is some interesting food for thought in the meantime: 12800HX VF Curve(AC/DC LL @ 0.01): 23x 1.087v 28x 1.094v 35x 1.111v 42x 1.171v 48x 1.263v
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The 12950HX is about 5% faster in 1-2 P-core loads at stock 5.0ghz, 10% faster if you set the favored cores to 52x multiplier but it may require changing EFI setup variables to unlock it. For multicore loads the silicon quality has the most effect and the i9 is generally better. A poor quality 12950HX should always be better than a poor quality 12850HX. With the right tools it may be possible to read out the factory V/F points intel set for a given CPU so we can build up some empirical data. Recent XTU versions seem to have this capability but it wants to put the CPU under load to generate the graph so thermal conditions (and power limits) can skew the result. A4500 will be able to go up to 140W max: https://nvdam.widen.net/s/97whpwwqqb/ampere-mobile-line-card-us-web Dell may also opt to ship it with lower speed GDDR6 so certain memory intensive workloads may benefit from the A5500/3080Ti.
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- dell precision 7770
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Yep I hope the numbers from the SP rating and VF curve mean higher performance without an undervolt. I don't have a desktop board yet. I notice the Z690 Strix D4 is on sale for $320 though.
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Yep. It is already delidded so I can use the copper IHS from the Rockit kit. The final bid was less than I expected. 540usd seems like a great price for what it is.
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Well it looks my delid is postponed a bit. Ended up picking up a high binned SP104 P-core, SP81 e-core from eBay in hopes it is a bit better than the my 12900k from Newegg and can close the gap with performance I saw on the Strix Scar 17 SE with 12950HX.
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The improved memory can slightly increase Timespy scores. You could try setting an offset voltage to all cores in Throttlestop and see if it helps. Undervolting P-cache also greatly reduces power consumption and heat generation, although it would cause a crash for me with Throttlestop when applied. You may need to set "Overclocking Lock" to disabled for Throttlestop to work. It is in "Advanced -> Power & Performance -> CPU - Power Management Control -> CPU Lock Configuration". To get the advanced menus it is Left Alt + Right Control + Right Shift + F2 all at the same time. Depending on your Function Lock setting you may also need to press the Fn key so F2 is sent instead of the modifier. The memory scores are not too bad. My Clevo NH55JNNQ gets 48363MB/s and 69.8ns latency with DDR4-3200 CL20 memory. I wonder if DDR5-5200 CL34 could match it in latency, provided the memory and GE77HX could run that stable.
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Interesting. That kit appears to have better timings than others I have seen. AIDA64 has a memory benchmark if you are looking to compare before/after results.
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I think the gaming DTR niche effectively collapsed itself when we had the Alienware 51m, MSI GT76, and X170SM all competing against each other for the same customers that year. I would not be surprised if Clevo lost many sales to those competitors, and their R&D budget was reduced as a result. I know monopolies are generally frowned upon but in this case it is probably best to have less competition for this type of laptop.
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Yeah, no harm in waiting, especially if you don't already have something good to repaste with. Would you swap the K5 Pro with regular thermal pads if you repaste? GentechPC may be able to provide pad height measurements for it as they should have already documented it for their own repaste/repad service. I have heard K5 Pro can be better though because it does not impede heatsink pressure on the CPU/GPU die. Definitely can be messy to work with, but it is not electrically conductive so even if it looks bad it should be ok. For the metal cover on the memory I would use a plastic spudger to pop it off. Look at a video for a Legion 5 Pro 2021 memory swap as it has the same kind of cover.
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Great information! The K5 Pro they use on the GPU memory and VRM's is fine. The core temp differences are not too bad, 86-96. I am unsure if some of that is just the odd positioned mounting posts, or if they used paste or a phase change pad on this model.
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This is a good question. For the GE76 12th Gen the 12700H definitely was paste and the 12900HK definitely was a phase change pad. The pad though was not a guarantee of good thermals. There is still a chance that the factory can botch up the application and you would have 15-20C core temp differentials leading to reduced performance and more noise. So I would probably have GentechPC verify how the stock pad/paste is performing then repaste if necessary before shipping.
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It did look better with lighting deactivated or just set to a static color. The most annoying thing is the pattern effects with all colors which are active by default. The boot unsheathing sound also has to be deactivated. Any BIOS update resets these configurations to default. The only thing configurable in the bios is the boot sound which is a shame. I think I would opt for the CreatorPro X17 over the GT77. If it has a membrane keyboard, less RGB and longer onsite warranty its a better configuration than the GT77. They have one with the 12900HX for 3649USD. The A3000 GPU should be a good performer at 130W with 12GB GDDR6. Still stupid they do not offer the 240hz QHD display. I think Eluktronics could order a high end CPU paired with a mid range GPU from Tongfang, but they worry it would not sell well. So far as I know everything is ordered in a batch with minimum quantities for a volume production discount. If they do get HX it will probably be later this year, and the Prema BIOS would be a few months after that.
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Got my Rockitcool delid kit in, have a quick question: Is there a shelf life on liquid metal compound? I have some Coollaboratory Liquid Ultra I purchased in 2017 (for delidding a 6700K in the Tornado F5, that brings back some memories). I can use it for the relid if its good and still considered effective. Or if it would be better I could get some Thermal Grizzly Conductonaut from Micro Center over the weekend.
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Yes, the GE77HX is similar to the Asus Strix Scar 17 SE. BGA CPU and GPU, two SODIMM slot and two SSD slots. But the big advantage is the advanced bios and less gamer accented chassis, and useful ports on the right side. The cooling system does have an additional heatpipe compared to the GE76. Curious if the partially unlocked 12800hx can boost over 5ghz on 1-2 cores. Eluktronics is ok. 12900h + 3080Ti costs 3200USD while 12700h + 3070Ti is a significant drop in single core performance. Another brand making forced bundling choices of CPU+GPU...
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The GE77HX is another option. Not much info about it out there but the cooling system and bottom panel has been revamped so maybe things are better in the noise department. Clevo should have just wired the integrated panel to the Nvidia GPU if they did not want to implement the MUX. There is no reason to force users to use Optimus on something with an LGA processor and 3070Ti. What were their product managers even thinking?
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The Strix Scar 17 SE has better performance and less noise than the NH55JNNQ. Although it is hard to find and more expensive. No reviews on the Precision 7770 so far. It will likely have lower power limits but better build quality, expansion, and software support. I like them because they are really focused on supporting external displays. Not only does it have a MUX for the internal panel but also a second MUX for the video output ports so they can be driven by the iGPU/dGPU depending on your preference. They also sell them without any Nvidia GPU as a CTO option which makes them significantly less expensive.
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Yeah, sent it back to Asus. Windows 10 driver support was not complete, and Linux had issues with running out of memory when booting and couldn't detect drives reliably if two were installed. I want to try a Precision 7770 which is about the same price as the Asus (~3500USD) for a 12950HX / 3080Ti / 32GB / FHD config. It is probably less performance for CPU+GPU loads but it may be close for CPU only and the OS support should be much better not to mention it being much better suited for using at the office. If only Clevo would publish a bios update for the NH55JNNQ enabling the MUX feature so I could have all displays internal and external driven by the same GPU.
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I'm surprised how low Mano quoted for the 7770. Pretty sure I saw 45W+140W sustained on the 7760 with 11950H and 3080 before selling it to a friend. I definitely can sustain 110W+45W on the 7560 with 11800H and 3080.
