Tomshardware has already went past 4ghz oc on P55 without any burns .
It turned out that the motherboard already had over-current protection built-in, and ASRock had simply neglected it in the BIOS, believing that average overclockers wouldn’t need it. A BIOS update to version 1.80 was the sole requirement to fix the P55 Pro, and ASRock even had Newegg ship a retail sample from its normal stock to prove this.
Mobo bios max voltage was set at 1.80v default keeping in mind that extreme overclockers would not need it . Now a bios revision ti 1.80v has been issued and no harm has been detected so far .
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