P8Z77-V memory voltage issue?

[chrisoverson]

Hello all, wondered if anyone can help me here.

I've had my computer running stable for a couple of weeks now at 4.4ghz, with manual voltages set on RAM (1.5v, non XMP Kingston 1600mhz). When I boot into the BIOS however, next to where the manual voltage option is, it shows another number which I take to be what it's actually running at.

Here's a screenshot I found:

Next to my DRAM voltage which is set to 1.5 it's showing around 1.61. Is this normal, or related to LLC etc? Memory is not overclocked in the slightest, only CPU/GPU. I know lower voltages are better so how would I go about correcting this?

Same thing happens on the PCH voltage. I set it to 1.1 and it shows 1.2ish after reboot.

I've been having problems with my USB ports (randomly disconnecting and reconnecting), could this be related? The VCCSA is manual too but that's behaving itself and shows the same as I've set it (1.05)

 

[wazza300]

its running at 1.65v

with 16gb of memory its about right,maybe it was unstable and reset itself to 1.65v? set it to auto and see what it uses

all other voltages are fine on auto

and if usb keeps disconnecting try updating the usb3 drivers and intel chipset inf drivers

 

[chrisgt]

Kingston HyperX Genesis? That's rated at 1600Mhz with 9-9-9-27 1.65v.

I'm having issues with my PC as *** is only stable at 1.5v DRAM, which means I have to reign in the memory to 1333Mhz (to run at 1.5v instead of 1.65v) to keep it stable.

 

[chrisoverson]

Nah it's Kingston value stuff. KVR16N11/8

1600mhz, 11-11-11-27 @ 1.5v

Link to datasheet: link

I suppose I could try setting to auto, but iirc it went to 1.6v last time I tried that. Surely it shouldn't change on its own to attain stability if it is set manually?