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VarcanG's avatar
VarcanG
7 years ago

Re: Undervolted CPU causing my crashes

@CroL0co wrote:
@SpazAu wrote:

Hi Blueberry,

Can absolutely confirm this was the root cause of my crashes.

Under constant load using Cinebench and Prime95 there was no crashing but when there was a sudden call on the CPU in game the voltage on the CPU was actually dipping below 1.2v on the vcore to around 1.17v.

After putting it back up to 1.3v(stock is 1.34v) in the bios haven't had any dip in voltage or a single crash in game since.

This is still not a problem with your system, the problem is their bad optimization. The game is using AVX instructions and they probably messed up something in that department.

I have the same issues and I "fixed" the problem the same way. Actually I didn't bump up my vcore, instead I lowered my overclock by 200mhz, the end effect is the same.

If a system s 100% stable in numerous stress tests and all other games (including BF5 which also uses AVX instructions) then it should also run Apex with ease. I really hope they fix this so people can revert their rock solid overclocks once again.

I completely agree with you. I have a 7700k running stable on 1.344v, I don't feel comfortable enabling AVX or bumping up the voltage, I have an MSI board and this CPU was a hard one to get stable on this board. I would say that my system is 99% stable (sometimes when the PC is not in use for a few days the OC resets and then is automatically backed up) but it never failed when active. 
We should have not supposed to tweak our builds to play the game, this needs to be fixed asap.

2 Replies

  • SpazAu's avatar
    SpazAu
    7 years ago
    @VarcanG wrote:
    @CroL0co wrote:
    @SpazAu wrote:

    Hi Blueberry,

    Can absolutely confirm this was the root cause of my crashes.

    Under constant load using Cinebench and Prime95 there was no crashing but when there was a sudden call on the CPU in game the voltage on the CPU was actually dipping below 1.2v on the vcore to around 1.17v.

    After putting it back up to 1.3v(stock is 1.34v) in the bios haven't had any dip in voltage or a single crash in game since.

    This is still not a problem with your system, the problem is their bad optimization. The game is using AVX instructions and they probably messed up something in that department.

    I have the same issues and I "fixed" the problem the same way. Actually I didn't bump up my vcore, instead I lowered my overclock by 200mhz, the end effect is the same.

    If a system s 100% stable in numerous stress tests and all other games (including BF5 which also uses AVX instructions) then it should also run Apex with ease. I really hope they fix this so people can revert their rock solid overclocks once again.

    I completely agree with you. I have a 7700k running stable on 1.344v, I don't feel comfortable enabling AVX or bumping up the voltage, I have an MSI board and this CPU was a hard one to get stable on this board. I would say that my system is 99% stable (sometimes when the PC is not in use for a few days the OC resets and then is automatically backed up) but it never failed when active. 
    We should have not supposed to tweak our builds to play the game, this needs to be fixed asap.

    I'm not really understanding both your replies.

    My vcore was badly undervolted due to an issue with a bios update that actually lowered the vcore below spec. Before the bios update the vcore was 1.34v, after it was 1.2v. I didn't "up" the voltage but set the voltage to the i7 9700k stock voltage.

    It's not bad optimisation if you "fixed it the same way" by removing an overclock. Thats running your PC over spec and the system crashing.

    Comparing BF5 and Apex is like comparing apples and oranges. Both use a different game engines and have different levels of CPU/GPU usage.

    Regardless, making sure everything was running to spec in the bios was how I fixed my issue. Might help someone else.

  • CroL0co's avatar
    CroL0co
    New Veteran
    7 years ago
    @SpazAu wrote:

    I'm not really understanding both your replies.

    My vcore was badly undervolted due to an issue with a bios update that actually lowered the vcore below spec. Before the bios update the vcore was 1.34v, after it was 1.2v. I didn't "up" the voltage but set the voltage to the i7 9700k stock voltage.

    It's not bad optimisation if you "fixed it the same way" by removing an overclock. Thats running your PC over spec and the system crashing.

    Comparing BF5 and Apex is like comparing apples and oranges. Both use a different game engines and have different levels of CPU/GPU usage.

    Regardless, making sure everything was running to spec in the bios was how I fixed my issue. Might help someone else.


    Well the problem is that you obviously have little experience with overclocking. The ~1.2v is actually a common stock voltage for 6th to 9th Intel mainstream CPU's, the BIOS that's pumping you ridiculous 1.34v stock voltage is the one with an issue...

    Ad no, it's not "running the system over the spec". If everything else, including various stress tests, applications and a ton of old/new games are running with no issue at all then the problem is obviously in Apex optimization.