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Are the CPUs that received elevated operating voltage permanently damaged?
by wnevets 2y ago
Are the CPUs that received elevated operating voltage permanently damaged?
- Pet_Ant 2y agoThis is the most pressing question. If it was just a microcode issue a cooloff and power cycle ought to at least reset things but according to Wendel from Level 1 Tech, that doesn't seem to always be the case.
- kevingadd 2y agoThe problem is that running at too high of a voltage for sustained periods can cause physical degradation of the chip in some cases. Hopefully not here!
- chmod775 2y ago> can cause physical degradation of the chip in some cases. Not in some cases. Chips always physically degrade regardless of voltage. Higher voltages will make it happen faster.
- Pet_Ant 2y agoWhy do chis degrade? Is this due to the whiskers I’ve heard about?
- cesarb 2y ago> Why do chis degrade? Is this due to the whiskers I’ve heard about? No, tin whiskers are a separate issue, which happens mostly outside the chips. The keyword you're looking for is electromigration (https://en.wikipedia.org/wiki/Electromigration https://en.wikipedia.org/wiki/Electromigration).
- account42 2y agoYes, but usually this happens slowly enough that the chip will be long obsolete before the degredation becomes an issue.
- layer8 2y agoNot instantly it seems, but there have been reports of degradation over time. It will be a case-by-case thing.
- userbinator 2y agoPossible electromigration damage, yes.