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Brand new to undervolting so let me give you an oversight on what I've been up to... I recently purchased an ACER Helios 18 (PH18-71), it's a 2023 model. Cheaper and brand new in box with a i9-13900HX and 4080 mobile GPU.
It took a bit of fiddling but I finally managed to unlock the hidden advanced option in bios which allows you to unlock the CPUs clocking capabilities which I was playing with a lot yesterday.
I managed to get the CPU core, P-Cache and C-Cache to -280mV, which sounds like a lot compared to most people's experiences online across any CPU. Never experienced a single crash at all and used the laptop normally for a few hours along with stress testing using cinebench. I also set the long and short Turbo Power Limits to 133 and turbo ratios to 48 for all cores.
During Cinebench R23, the laptop scored 27853 in multicore but I can't seem to find any info on whether this is a good score or not. It also had about 10°C headroom average, only touching the throttle TjMax for a split second as it goes between passes. This seems good to me!
I'm considering leaving it like this, but I'm wondering if trying to lower the cpu core & cache voltage more would benefit me? And if my TPLs are set right?
I also want to undervolt the GPU using MSI afterburner, or something else. But I don't really know what I'm doing here. I seem very limited in that software... It won't do an auto clock using the scan feature, constantly tells me that it failed. Plus, only the two central options can be adjusted. I can get into the voltage frequency curve and move points but don't wanna break anything since I'm clueless there ahaha
Any help appreciated![/i]
It took a bit of fiddling but I finally managed to unlock the hidden advanced option in bios which allows you to unlock the CPUs clocking capabilities which I was playing with a lot yesterday.
I managed to get the CPU core, P-Cache and C-Cache to -280mV, which sounds like a lot compared to most people's experiences online across any CPU. Never experienced a single crash at all and used the laptop normally for a few hours along with stress testing using cinebench. I also set the long and short Turbo Power Limits to 133 and turbo ratios to 48 for all cores.
During Cinebench R23, the laptop scored 27853 in multicore but I can't seem to find any info on whether this is a good score or not. It also had about 10°C headroom average, only touching the throttle TjMax for a split second as it goes between passes. This seems good to me!
I'm considering leaving it like this, but I'm wondering if trying to lower the cpu core & cache voltage more would benefit me? And if my TPLs are set right?
I also want to undervolt the GPU using MSI afterburner, or something else. But I don't really know what I'm doing here. I seem very limited in that software... It won't do an auto clock using the scan feature, constantly tells me that it failed. Plus, only the two central options can be adjusted. I can get into the voltage frequency curve and move points but don't wanna break anything since I'm clueless there ahaha
Any help appreciated![/i]





