Hello,
I have underclocked my GA-G33m-S2 Gigabyte motherboard (G33 series) on my E4400 chip from 1.325 down to 1.125, and got the temperatures under load down by about 5-6 degrees. I changed the CPU voltage in the BIOS to do this.
I was wondering if setting my own voltage will disable any of the motherboard's built-in CPU/system protection? For instance, if the heatsink falls off, will the motherboard still decrease the core frequency and voltage to protect the system from frying?
I still have the protection services enabled in the BIOS (EIST and TM2, for instance) and it doesn't say anything about it being overridden by a user-set CPU voltage. But I thought I would ask here to see if anyone knows otherwise.
Thank you very much!
Undervolting affect Motherboard's built-in protection?
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Heh, you've got my name.davidrees wrote:I think the thermal protection shuts off the PC when it gets too high.
That said, if the HSF falls off, I doubt you have even 1 second before the chip is destroyed - no matter how low the voltage.
While the case of CPUs blowing up if the HSF came off was possible with the old Athlons without heatspreaders, I know that the Intel chips were very resiliant to this and would be surprised if the current crop of processors were also not able to protect themselves.
That said, with the HSF retention systems these days, there really is no chance of the HSF falling off unless you take a sledgehammer to it!
Yea, I guess the HSF falling off is pretty unlikely!drees wrote: Heh, you've got my name.
While the case of CPUs blowing up if the HSF came off was possible with the old Athlons without heatspreaders, I know that the Intel chips were very resiliant to this and would be surprised if the current crop of processors were also not able to protect themselves.
That said, with the HSF retention systems these days, there really is no chance of the HSF falling off unless you take a sledgehammer to it!
However, I'm still curious whether the motherboard protection would be disabled with a user-set CPU voltage? I know the EIST and TM2 protection involves undervolting the CPU when it gets to high loads or temperatures, but not sure if the user-set voltage overrides it.
I don't have any direct experience with it, but I doubt that it would affect it.oneleaf wrote:However, I'm still curious whether the motherboard protection would be disabled with a user-set CPU voltage? I know the EIST and TM2 protection involves undervolting the CPU when it gets to high loads or temperatures, but not sure if the user-set voltage overrides it.