incendery Posted August 21 Share Posted August 21 I've posted a little bit about this laptop process but thought it would be best to make a thread to document it here. current specs: P775dm3-g i7 8700k: 4.7ghz -115mv RTX 3080 16GB (180w shunt modification) 32gb CL18 spectek 2x16 2tb 970 evo + 2tb WD Blue SSD 1080p 60hz panel intel AC8265 Modified Dsanke "P7xxDM_RTX" 1.07 bios to suit Windows 11 The laptop I started with is a P775DM3-g I picked up for cheap with a 6700k and an unhappy 1060 that would constantly crash and stop outputting to the display. After finding this thread from a forum member who had bought a 3080mxm for their P775tm1 and documented the process to get it working (and the possibility of making nvidia drivers work without .inf modification which was a priority for me) I decided to order a 3080 for myself. At the time I had a QTJ2 mutant cpu but unfortunately due to the IHS height and the rigidity of the aliexpress customized heatsink I had to go back to the 6700k, This was then upgraded to a delidded 8700k acquired from a friend. Unfortunately the 3080 was mildly damaged in shipping! A cracked inductor and the external power connector was squished. in a stroke of luck ebay was helpful with the refund process and I was left with the card in my posession, the connector was an easy fix but the inductor required a bit more effort. With the parts installed I then worked on the bios going off the details in this comment from forum user srs2236, changed the ID from 7705 (p775) to 7715 (X170KM). Installing the latest Nvidia driver worked without a hitch, power was limited to 150w due to no dynamic boost support (power limit is covered later on), the aliexpress heatsink is amazing at keeping temperatures in check. With the GPU working fine I began on the CPU, due to some mistakes with mounting pressure and the QTJ2 I had damaged / squished one corner of the socket so needed to lift a section of pins back up by hand (thought for a moment I might have killed the board when I realized what had happened😐) The P775 has a lower OCP limit than the TM1 (144A vs 180A) so if too high of an instantanous load (avx torture test etc) is applied it can cause shutdowns with a big overclock, I found OCCT small extreme to be too much unless I limit the CPU. currently I have settled at 4.7ghz -115mv offset and it is very stable, photo attached is from testing at 4.8ghz. After some benchmarking and tuning I was annoyed with the 150W power limit but I wasn't prepared to use the old driver with unlocked power limits, so the only real choice was a shunt modification... 20mOhm shunt resistors added on to the existing 5mOhm, in theory this should give 20% extra headroom (180w) but until I can tap in to i2c on the card and see what power actually is getting used I can only make an educated guess how much power it is drawing. I went from a bit over 12k in timespy graphics score to over 14k! Next post I will cover some of the problems and solutions I went through getting the bios to work (I am firmly a novice in this area so a lot of it is trial and error) My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
incendery Posted August 24 Author Share Posted August 24 13k is so close! https://www.3dmark.com/3dm/116377044? 1 My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
incendery Posted August 24 Author Share Posted August 24 enough benching for one night 😄 https://www.3dmark.com/3dm/116378299 1 My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
1610ftw Posted August 24 Share Posted August 24 Great job and that CPU score and total score in Time Spy will skyrocket with a 9900K but you know that 😉 Which heatsink did you get from Ali Express? 1 Link to comment Share on other sites More sharing options...
incendery Posted August 24 Author Share Posted August 24 5 minutes ago, 1610ftw said: Great job and that CPU score and total score in Time Spy will skyrocket with a 9900K but you know that 😉 Which heatsink did you get from Ali Express? Thank you :D, and yes I'm aware it would score a fair amount higher with a 9900k 😅I'm thermally limited as is so I'll have to cope with my 8700k I went with the air only one of these from aliexpress https://www.aliexpress.com/item/4000174372901.html it handles the heat well but I am looking to order some upgraded fans from taobao to try and combat the heat soak 1 My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
1610ftw Posted August 24 Share Posted August 24 9 minutes ago, incendery said: Thank you :D, and yes I'm aware it would score a fair amount higher with a 9900k 😅I'm thermally limited as is so I'll have to cope with my 8700k I went with the air only one of these from aliexpress https://www.aliexpress.com/item/4000174372901.html it handles the heat well but I am looking to order some upgraded fans from taobao to try and combat the heat soak Not so sure you are that limited thermally as to not make use of a 9900K - it usually is better silicone and you could limit all core speed to not exceed the power uptake of your 8700K which at up to 150W is quite substantial 😄 The heatsink for the 20xx and 30xx GPUs looks very nice indeed and I see that you got very good temperatures for the CPU and GPU in your Time Spy run! Taobao has a bunch of fans. Probably best to get the ones that are supposed to have maximum airflow and if needed reduce their speed. 1 Link to comment Share on other sites More sharing options...
incendery Posted August 25 Author Share Posted August 25 18 hours ago, 1610ftw said: Not so sure you are that limited thermally as to not make use of a 9900K - it usually is better silicone and you could limit all core speed to not exceed the power uptake of your 8700K which at up to 150W is quite substantial 😄 The heatsink for the 20xx and 30xx GPUs looks very nice indeed and I see that you got very good temperatures for the CPU and GPU in your Time Spy run! Taobao has a bunch of fans. Probably best to get the ones that are supposed to have maximum airflow and if needed reduce their speed. Awfully tempting with the 9900k... maybe I'll make a bad financial decision sometime in the future and get one 😂 the heatsink is fantastic, the only thing I've changed is using some springs to clamp the CPU instead of just screws as included with the heatsink originally, eventually I plan on soldering copper shims on for the vrms, and memory on the GPU. I've seen a few different ones on taobao from the same seller who produces the vapour chamber cooler, https://item.taobao.com/item.htm?id=640747471518 not sure exactly which are the most performant but I believe the 51m converted fans seem the "performance" option maybe My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
kingofswag187 Posted September 2 Share Posted September 2 Hello Mate! I currently own my own personal P775DM2-G (Same model, just a different config). It currently has a 2070 Super as well as a 8700K modded into it, I am currently looking to swap in a QTJ1 mutant CPU, we will see how that goes! 1 Clevo P775DM2-G (Same thing as P775DM3/G etc) QTJ1 aka i9 10980HK ES "Mutant CPU" 32GB DDR4 CL18 @ 2600Mhz (2x16GB SODIMM) RTX 2070 Super 115W (Was GTX 1070 MXM) 1080P 60Hz Panel Link to comment Share on other sites More sharing options...
kingofswag187 Posted September 3 Share Posted September 3 Unfortunately, the QTJ1 did not seem to end up working out, I believe the adapter it is mounted suffers PCIE incompatibilities with the MXM standard, the seller mentions that it "cannot work for notebooks, desktops only", but the 8700K is still a strong CPU so I am not too fazed! Clevo P775DM2-G (Same thing as P775DM3/G etc) QTJ1 aka i9 10980HK ES "Mutant CPU" 32GB DDR4 CL18 @ 2600Mhz (2x16GB SODIMM) RTX 2070 Super 115W (Was GTX 1070 MXM) 1080P 60Hz Panel Link to comment Share on other sites More sharing options...
incendery Posted September 3 Author Share Posted September 3 unusual it isn't working with the QTJ1, what style mutant chip was it? one of the IHS ones? I believe I used Dsanke's 1.05 based bios when I had a QTJ2 running in mine before the heatsink swap 6 hours ago, kingofswag187 said: Unfortunately, the QTJ1 did not seem to end up working out, I believe the adapter it is mounted suffers PCIE incompatibilities with the MXM standard, the seller mentions that it "cannot work for notebooks, desktops only", but the 8700K is still a strong CPU so I am not too fazed! My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
kingofswag187 Posted September 5 Share Posted September 5 I got it working as discussed privately! Turns out the VBIOS I was playing around with wasn't compatible with the mutant CPUs, but was fine with retail chips (8700K, G3930, 6700 etc) Clevo P775DM2-G (Same thing as P775DM3/G etc) QTJ1 aka i9 10980HK ES "Mutant CPU" 32GB DDR4 CL18 @ 2600Mhz (2x16GB SODIMM) RTX 2070 Super 115W (Was GTX 1070 MXM) 1080P 60Hz Panel Link to comment Share on other sites More sharing options...
incendery Posted September 5 Author Share Posted September 5 7 hours ago, kingofswag187 said: I got it working as discussed privately! Turns out the VBIOS I was playing around with wasn't compatible with the mutant CPUs, but was fine with retail chips (8700K, G3930, 6700 etc) interesting! strange the tongfang vbios didn't work with the es CPUs 🤔 My Clevo P775dm3 8700k @4.7 3080mxm (180w) 32gb cl18 Link to comment Share on other sites More sharing options...
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