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Crosshair VII Hero LN2 specific BIOs...

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post #1 of 3 (permalink) Old 05-20-2020, 10:06 PM - Thread Starter
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Crosshair VII Hero LN2 specific BIOs...

I've been using the newest BIOs 3004 but was wondering if there's a LN2 specific one available or a previous version that's better?

Anyone that has information about Ryzen at sub zero temps. I'm currently working on R5 3600. Noticed there's some CB & CBB issues, with my CPU it wont boot if below -70c and system attempts to reboot if drops below -170c.. at which point I get q-code 07. I can only get my system to boot when RAM is at 3000MHz instead of rated 3600MHz.

Any help or tips would be much appreciated.
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post #2 of 3 (permalink) Old 05-21-2020, 05:13 AM
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I think you're seeing the IF cold bug. That might be where you want to start looking. I haven't played myself, but from what I've read and hear you have to drop Infinity Fabric speeds when going that cold.

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post #3 of 3 (permalink) Old 05-21-2020, 08:32 AM - Thread Starter
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I have tried setting IF to half of RAM speed as well as AUTO. That's why I was wondering if maybe there's a specific LN2 BIOs or a previous version that works better.
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