PC restarts BIOS after OC SOS function completes
PC restarts BIOS after OC SOS function completes
I just relocated and took my PC with me, but after increasing the CPU clock (R7 1700x 3.9 ghz) and RAM (2x8GB 3200MHz) from default settings, it performs a double reboot and resets the BIOS. Any advice on diagnosing or fixing this problem would be greatly appreciated. Mobo MSI B450 Tomahawk PSU 650 W Gold Cooler H100i
Initially, check if the correct slots are available, typically the second and fourth (last) ones near the CPU.
Which problem is it: the crash/restart with an overclock or the CMOS reset in BIOS? There seems to be a setting in BIOS that should prevent resetting CMOS after a failed boot, but I believe you want that to occur at least temporarily. Does it restart immediately or after some time of operation? The movement might have shifted the water block/pump, reducing CPU cooling. If so, remove, clean, and reapply TIM. What VCore voltage are you using? A 3.9Ghz overclock for a 1700X is quite high; it likely requires a higher voltage to remain stable. I’m not sure if just moving it would impact it, but you might need to adjust the voltage.
It performs the standard restart after saving changes, then restarts again and once more before resetting the BIOS. It doesn’t rely on the CPU; it runs smoothly without overclocking, which I’ve maintained by keeping it at 3.9 for a while without problems. I always set the voltage to auto. There’s been a new change where half of my RAM is marked as hardware reserved, regardless of where I install or replace them. I’m wondering if this could have affected my MOBO. Any advice would be appreciated?
The update suggests the RAM slot might be faulty. I tried placing both dimms in opposite slots, but nothing was reserved and it didn’t stop working. Using just one dimmer still overclocks without problems. It seems I’ll need to replace the RAM and get a new stick with the same capacity. Any other ideas?
Initially: are you selecting the appropriate slots? Typically the second and fourth (final) slots near the CPU.
Secondly: for a Zen 1 CPU (1700X), a 3200 MHz is quite a significant overclock for memory, often needing some adjustments to achieve stability. I recommend increasing the DRAM voltage first—begin at 1.35V and adjust gradually. DDR4 DRAM is rated up to 1.5V but should not exceed 1.40V. If stability isn’t achieved then consider lowering the multiplier to 3066, then 3000, 2933.
If stability comes through, the main issue becomes timing adjustments. You can use a DRAM Calculator together with Taifun Burner to identify the exact DRAM chips your DIMM uses. Once you have the precise chips, DRAM Calc will assist by computing the correct timing and voltages needed for stable memory operation.