The PC fails to power on following the addition of an extra fan.

F5F Stay Refreshed Hardware Desktop The PC fails to power on following the addition of an extra fan.

rubyruler
Member

03-02-2016, 02:41 AM

I have a situation with three fans and an AIO that has its own PWM/ARGB hub. Previously, I connected the case fan to the hub, but after moving those fans onto the motherboard, the system would fail to boot, displaying a failure message. After entering BIOS, nothing changes, it saves, and then it works. Possible solutions?

rubyruler

03-02-2016, 02:41 AM #1

LexionARD
Junior Member

03-02-2016, 04:23 AM

It occurs only when I turn off the PSU or unplug the AC cable. Once I switched those fans to mb mode, XMP failed initially but I managed to boot normally without it active.

LexionARD

03-02-2016, 04:23 AM #2

It occurs only when I turn off the PSU or unplug the AC cable. Once I switched those fans to mb mode, XMP failed initially but I managed to boot normally without it active.

SamSizzlebot
Junior Member

03-16-2016, 12:38 AM

It seems the fans might be drawing too much energy. Review the manual for your motherboard and verify the fan specifications against the available power.

SamSizzlebot

03-16-2016, 12:38 AM #3

It seems the fans might be drawing too much energy. Review the manual for your motherboard and verify the fan specifications against the available power.

JebThePleb
Posting Freak

898

03-16-2016, 03:44 AM

The motherboard can handle fans up to 24 watts, which seems incorrect.

JebThePleb

03-16-2016, 03:44 AM #4

The motherboard can handle fans up to 24 watts, which seems incorrect.

ItzFireMLG
Member

215

03-16-2016, 04:02 AM

If XMP is affecting performance, it's an unusual issue. Is your PSU capable of handling the full power needs of your entire setup? It's possible the voltage drops slightly so RAM can't enter XMP mode without failing. If not the PSU, the motherboard might be faulty—hard to verify. Since this occurs after unplugging power, replacing the CMOS battery could be a simple fix that might actually be the cause.

ItzFireMLG

03-16-2016, 04:02 AM #5

JustCroey
Member

03-16-2016, 07:21 AM

XMP is disabled immediately due to potential boot issues. The PSU provides sufficient power for the entire setup—it’s a NZXT C750 Gold. I’m wondering if the CMOS battery will deplete soon.

JustCroey

03-16-2016, 07:21 AM #6

XMP is disabled immediately due to potential boot issues. The PSU provides sufficient power for the entire setup—it’s a NZXT C750 Gold. I’m wondering if the CMOS battery will deplete soon.