shutdown problem

[moogle]

Right, recently I've been having a shutdown problem. Not shutdown but powering off. Basically now my pc does not power off until I hold the off button for 4 secs. I thought it was a faulty cd drive as when it used to go into the process of shutting down I could always hear the cd drive spin down. I took out the cd drive (just the connectors, power and sata) and shutdown worked. Great so I thought faulty cd drive. I switched the cd drive on another pc and that pc shut down fine.

I thought maybe it's the sata cable. I put the cable through some bends but nothing serious. It still shutdown. I thought it may be the sata port on my motherboard. I switched ports and it didn't work. So I thought maybe it's the motherboard. I took the power off the cd drive but left the sata cables in and the pc shutdown fine. I put the sata cable back and it didn't work again.

Now 3 hdd's and the cd drive are all on the same cable. I decided to take out a hard drive power connector and leave them all still connected to the mobo. The pc shuts down fine. I'm confused as to where the problem is. I reset the bios to defaults and nothings overclocked but the bios will sometimes boot up saying overclocking failed. The psu does make a slight low buzzing noise though but nothing loud. What's at fault here. PSU or Mobo?

I'm thinking PSU as mobo is a new one reccently rma'ed.

[moogle]

nevermind now it's fixed.

[Pob255]

What was the problem?
Slight buzzing sound from the PSU anything to do with it? if not is it a high pitched sound? if so I might know what it is.

[UseItNow]

Was it to do with the SATA ports being native Intel based and also having some based on the JMicron, as in Gigabyte boards, thereby requiring 2 sets of SATA drivers for the motherboard?

[Pebble]

I had what seems to be a similair issue. I have an Asus P5K Premium/WiFi-AP, which uses the Intel ICH9R for the 6 SATA ports, plus the JMicron JMB363 chipset for 1 IDE and 2 eSATA ports. I had the Intel chipset set for RAID, and the JMicron set for IDE, with only a DVD drive attached to it. I found that when selecing to shutdown my computer, it would go through all the steps, but not actually power off, with no indication in the Event Log of any errors, and restarting after that did not cause the Event Log to log an unexpected shutdown event, so it appears it had powered down, just not actually switched off.

I decided to start from scratch, installing Windows again, one driver at a time, and eventually found that the problem occured once I installed the driver for the JMicron controller (I was using version 1.17.37). I've not tried any other version of the driver, I've let Windows use the built in IDE controller drive and it shuts down okay.