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I7-8550U Unleashed

Joined
Jul 21, 2022
Messages
12 (0.09/day)
System Name HP 15-cs0000ne
Processor I7-8550U -115mv core+cache
Memory 16GB Samsung 2400Mhz
Video Card(s) MX150 4GB 25W + Intel UHD 620
Storage 128GB NVME SSD + 500GB WD Blue SATA SSD
Mouse Logitech G102 Lightsync
Keyboard CosmicByte CB-GK-18 Lubed with krytox 205g0, Clipped, Band-aid modded, Foam modded
Software ReviOS Windows 10 + Arch Linux
Benchmark Scores CB R23= 4600, CB R25= 773
After disabling power limits in my previous post, I needed to improve my cooling a bit more, as I was still hitting thermal throttling when on full load. So, I performed the below mods to my computer. :-
  • IMON Slope set to 50 % (Significantly reduces power limit throttling by changing TDP long to 30W)
  • Undervolted -150 core, 115 cache (Allows it to reach maximum frequency using only 32-34 W)
  • added thermal pads between keyboard and motherboard.(decreases temps by about 2-3 degrees, check brad's hacks for more info)
  • Thermal grizzly conductonaut liquid metal on CPU(easily reduces temps by about 5-10 degrees)
  • connected CPU VRMs to heatsink with thermal pads. (eliminates VR TEMP throttling. This only occurs, because HP decided not to cool the VRMs at all. It is literally no where near the heatsink. I just cut a thin thermal pad strip from the VRM to the heatsink)
  • salvaged heatsink from another laptop and stuck it on top of the main heatsink. (While I expected this to be the biggest temp gain, surprisingly it did very little, and therefore I ended up removing it.)
  • Some random cheapo cooling pad.(another easy 3-4 degree drop)
Results.:-

Screenshot (16).png


My PC now idles at 28 freaking degrees.

Screenshot (27).png


This thing can now cool 30W indefinitely at just 73 degrees. the peak of 75 degrees was hit while the CPU was in short PL which is basically uncapped. The power consumption shows 15W because of the IMON slope, the actual consumption is 30W. Just check the frequency for proof, at 15W this CPU cant cross 2.7Ghz . I can probably reduce the imon slope further and just completely unleash it and it would still be under 90 degrees, but I do gaming on this PC, and its never gonna use more than 30 W when using the very underpowered MX150. Regardless, its really impressive what a few hours of your time can acheive. This applies to anyone looking to get more out of their U-series processors. If you are looking to do something similar, I would mostly just recommend the cooling pad and the liquid metal(be careful using it, you can end up killing your pc if you aren't careful), and the undervolt, along with the cooled VRMs, incase your VRMs aren't cooled by your heatsink already.
 
Joined
Feb 3, 2019
Messages
1,694 (1.21/day)
Location
Chicago Land
Processor 12400F
Motherboard Asus B660-G (BCLK enabled!!)
Cooling Stock Air
Memory Patriot C36 series 5200mhz
Video Card(s) Asus strix GTX 980 OC
Storage Samsung 980 pro m2
Display(s) 21" - 55"
Case None
Power Supply Antec CP series 1000w
Mouse Razar Mamba Tournament Edition
Keyboard Logitech G910
Benchmark Scores 1800 single core CB R23 at 4.6ghz
That's pretty decent. Low power systems are fun to tinker with, though most of mine on desktop pc. Such as passively cooling a 4ghz 220ge with a wraith heatsink and the fan removed.
 
Joined
Jul 21, 2022
Messages
12 (0.09/day)
System Name HP 15-cs0000ne
Processor I7-8550U -115mv core+cache
Memory 16GB Samsung 2400Mhz
Video Card(s) MX150 4GB 25W + Intel UHD 620
Storage 128GB NVME SSD + 500GB WD Blue SATA SSD
Mouse Logitech G102 Lightsync
Keyboard CosmicByte CB-GK-18 Lubed with krytox 205g0, Clipped, Band-aid modded, Foam modded
Software ReviOS Windows 10 + Arch Linux
Benchmark Scores CB R23= 4600, CB R25= 773
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