Undervolting a phone

Wolfdog96
Junior Member

11-30-2025, 09:43 AM

Hello, I'm testing a OnePlus 2 with an SD810 and MSM8994 to explore low-voltage settings. Is it safe to run the device at very low voltages?

Wolfdog96

11-30-2025, 09:43 AM #1

Hello, I'm testing a OnePlus 2 with an SD810 and MSM8994 to explore low-voltage settings. Is it safe to run the device at very low voltages?

coolman9222
Posting Freak

754

12-08-2025, 05:00 AM

I don't think so, it wouldn't cause harm to a full-size desktop processor either. Of course there could be instability if the voltage isn't right, but I'm not sure it would permanently damage anything. But I haven't ever undervolted a CPU that wasn't an AMD or Intel x86 processor, so I can't be certain how other types like Qualcomm CPUs will behave. Also, I don't know what the equivalent of CPU vcore is for mobile processors.

coolman9222

12-08-2025, 05:00 AM #2

gamerpgf
Member

175

12-09-2025, 09:57 PM

I don't think so, it wouldn't cause harm to a full-size desktop processor either. Of course there could be instability if the voltage isn't right for the chip, but I'm not sure it would lead to permanent damage. Personally, I haven't undervolted a CPU that wasn't an AMD or Intel x86 processor, so I can't be certain how other types like Qualcomm's would behave. Also, I don't know what the equivalent of CPU vcore is for mobile processors.

gamerpgf

12-09-2025, 09:57 PM #3

sironip
Member

191

12-09-2025, 11:44 PM

performing actions similar to rebooting or altering your phone's CPU can permanently damage it. unlike a regular computer, there are limited ways to undo the changes if problems arise.

sironip

12-09-2025, 11:44 PM #4

performing actions similar to rebooting or altering your phone's CPU can permanently damage it. unlike a regular computer, there are limited ways to undo the changes if problems arise.