I bought a CH IV few days ago. BIOS: 0905
My issues:
1.) The CPU voltage is fluctuating like hell. It's crazy and I'm fairly disappointed about this. I've never seen such a huge fluctutation on MSI's GD70 or any other mobo (including the cheapest ones!).
CPU Voltage set in BIOS: 1,390625V
LLC: ON
Prime Blend: jumping between 1,432V and 1,440V
Idle: ~1,410V
CPU Voltage set in BIOS: 1,390625V
LLC: OFF
Prime Blend: jumping between 1,300V and 1,312V (it's almost 0,1V drop compared to original value!!!)
Idle: ~1,370V
Because of this it's very difficult to find the most efficient 24/7 voltage when you're OCing the CPU. To be honest I was expecting more stable voltages for ~$230.
(I've made the measurements on the Probe It points but the mobo reported values are almost the same. At least the voltage sensors are working fine.)
2.) There is a huge (~20˙C) difference between the CPU and the mobo reported tempereature. I think that the truth is someweher halfway between the CPU and the mobo reported values.
+10˙C would be fine compared to CPU Core temp.
IDLE:
LOAD:
Other issues:
The C'n'Q and the C1E options are grayed out (=disabled) when I'm overclocking the CPU.
You can't change the CPU and the CPU NB VIDs in BIOS.
That's all...for now.
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