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rpoz wrote: If you don't want your data to go AWOL, back up regularly on to a different system or a web-based email account, and put any hard drives in a 5 1/4" fan-cooled caddy.

Unfortunately this can tripple the noise output of the Iyonix. The solution is to either keep the caddy unlocked which powers down the drive and the fan, but means you have to lock it and reboot if you want to access it. Or if its a backup drive you only need to use occationally, but dont want to have to reboot first, you can disconnect the fan in the caddy frame (and maybe also in the caddy too) and spin down the drive with SYS XADFS_PowerControl 2 5 0 in the boot sequence (the X for of the SWI will prevent an error if the drive isn't present). Remember not to run the drive for too long without cooling if you do this, and to issue the command to spin it down after use.

I tend to do both in my Iyonix, by keeping it unlocked most of the time, but I have also disconnected the fan and spin the disc down when it is locked. As the internal temperature of the Iyonix is quite low even with two hard drives powered up, I feel this is an acceptible risk. In the Risc PC I have left the fan connected in the caddy frame (theres also one it its usual caddy) as the cooling isn't as good, and as even with a quiter PSU fan fitted its quite loud so the caddy fan doesn't make much more of a difference. Remember with the Risc PC though, if you shut the flap it will make the caddy quiter, but it also wont get any airflow!

 is a RISC OS Userdruck on 28/06/05 12:07AM
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