+5V SB rail - tolerance ±5% +4.75V to +5.25VĪnything lower or higher than that aren't safe for PC components. And according to the ATX PSU standard, safe voltage ranges are: What you don't see (but can monitor) is the voltages PSU outputs during PC's operation. While my i5-6600K has: C0, C2, C3, C6, C7, C7s and C8 states.īut to sum it up, this image says what each CPU sleep state does:Ĭlick to expand.Just because you have no apparent issues with your CX550m (e.g PC shutting down during gaming) doesn't mean the PSU is safe to use with your components. In the article above, the Xeon E3-1245 v5 is taken as an example with C0, C1, C1e, C2, C3, C6, C7 and C8 states. Here's good article about CPU C- and P-states (C = sleep, P = power) but do note that this article goes in-depth explaining it all,ĭo note that each CPU may have different sleep states. C1 is the first idle state, C2 the second, and so on, where more power saving actions are taken for numerically higher C-states. C0 is the operational state, meaning that the CPU is doing useful work. For permanent fix, you're looking towards new PSU since disabling higher sleep states can play a role in CPU's longevity.ĬPU C-states are used to save power when the processor is idle. Full specs with pics in my sig.)Ĭlick to expand.Disabling C6 and higher sleep states from BIOS is temporary and not a permanent fix. (All my 3 PCs: Skylake, Haswell and AMD are also powered by Seasonic. As far as how good build quality Corsair CX-450 has, all you need to do is to look at warranty given to it: Since PSU powers everything, it is the most important component inside the PC. Note: if the issue is within software, new PSU doesn't fix your issue but it does keep your PC components safer for years to come. In a gaming PC, i wouldn't use anything below good quality PSU. While it can be used just fine in an office PC that never sees any high loads using CX-series in a gaming PC, where PSU does see high loads, is a bad idea. Personally, i'd go with better PSU (any Seasonic unit in 500W range would do, e.g Focus/Focus+ 550) since Corsair CX450, at best, is mediocre quality PSU.
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