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Re: H55M-USB3 random shutdowns, will not power on afterwards.
Just received my motherboard back from Gigabyte's RMA repair, and at least one of the reported issues remains.
CPU_FAN is still broken, with a standard Intel heatsink fan at only 1060 RPM when BIOS is set to fixed maximum speed. (just barely spinning, and entirely silent). I saw 65*C while doing nothing more than downloading & installing GPU drivers.
I have no way of knowing if the sudden shutdown issue has been resolved without running the machine for a week or two, but I cannot do this when the board can't even keep the CPU cool.
What am I supposed to do now? I am certain there are electrical issues with this board, and I just spent ~$30 to ship it in for RMA only to have it come back with one, if not all the reported issues unresolved, and repairs to seemingly unrelated parts (PCI-E slot and a capacitor related to the USB 3.0 port)
Edit:
Found some molex to 3pin adapters with an extra sense wire for the mobo and did some testing
Intel HSF running off CPU_FAN header with BIOS set to fixed maximum = ~1050RPM
Intel HSF connected via molex adapter to PSU, yellow sense wire to mobo = ~2100RPM
Scythe +12v case fan (the 'M' 1200RPM model). Connected to CPU_FAN = ~850RPM
Scythe onnected to SYS_FAN = 700RPM
Scythe with molex & sense wire = ~1250RPM
From my experience with undervolting the scythe in the past, there is no way CPU_FAN is putting out above 9-10v, with SYS_FAN closer to 7-8V
Just received my motherboard back from Gigabyte's RMA repair, and at least one of the reported issues remains.
CPU_FAN is still broken, with a standard Intel heatsink fan at only 1060 RPM when BIOS is set to fixed maximum speed. (just barely spinning, and entirely silent). I saw 65*C while doing nothing more than downloading & installing GPU drivers.
I have no way of knowing if the sudden shutdown issue has been resolved without running the machine for a week or two, but I cannot do this when the board can't even keep the CPU cool.
What am I supposed to do now? I am certain there are electrical issues with this board, and I just spent ~$30 to ship it in for RMA only to have it come back with one, if not all the reported issues unresolved, and repairs to seemingly unrelated parts (PCI-E slot and a capacitor related to the USB 3.0 port)
Edit:
Found some molex to 3pin adapters with an extra sense wire for the mobo and did some testing
Intel HSF running off CPU_FAN header with BIOS set to fixed maximum = ~1050RPM
Intel HSF connected via molex adapter to PSU, yellow sense wire to mobo = ~2100RPM
Scythe +12v case fan (the 'M' 1200RPM model). Connected to CPU_FAN = ~850RPM
Scythe onnected to SYS_FAN = 700RPM
Scythe with molex & sense wire = ~1250RPM
From my experience with undervolting the scythe in the past, there is no way CPU_FAN is putting out above 9-10v, with SYS_FAN closer to 7-8V
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