Shutting down HDX
Posted by: nocker on 07 August 2011
Thanks in anticipation.
nocker, that means you simply have not shut down your HDX for 18 months! That's ok, other than power saving issues. It's like leaving your computer always on! If you had shut down, you would have switched on on the back panel. There is no other way to switch on anyway.
Usually there is no reason to shut down the HDX or the other servers. The button on the front and on the remote, puts the unit in a form of low power consumtion state, e.g. the unit loses contact with the DTC to preserve power. I suppose the only thing that will happen in this mode is the nightly backup.
I have given up using this mode, because the DTC has a very hard time seeing the server when you wake it up again.
What the manual strongly warns you about is to just shut down the unit by using the switch on the back of the unit, before you have used one of the other buttons. It is like just using the shutdown button on a computer.
I have done this several times before I red the manual! Until now nothing bad has happened, but since the manual warns against it I will use the recommended procedure in the future.
The only reason to shutdown the unit is as the last step of an upgrade to the server software, or if you want to unplug the entire system for some reason.
Claus
nocker,
I am not sure if I had misunderstood what you had not done. Turning off HDX directly from the back panel is like unplugging a computer without shutting it down first, which would interrupt the ongoing save processes and make it difficult to begin from where it had left off when it restarts.
Claus,
I don't think HDX has a low power state (stand-by). The button on the front and on the remote terminates all ongoing operations and simply shuts down. Backups and rescans are all done when it's on. Repowering from back panel just initiates restart of windows. (HDX is basicly a dedicated windows xp computer.)
It is not necessary but I shut down every night, not only to save energy, but to protect the fan from excessive mechanical wear. And remember, HDX gets really hot. This is not really necessary in hot summer nights in my country. DTC finds the device quickly again after restart if you do the "scan for hard disc players".
nocker, I don't get this. How do you turn back on with the remote? At least on my version, the only way to turn on the HDX is repowering from the back panel!
If you shut down an older HDX from the front panel or the remote then you are (as has been mentioned earlier) effectively putting the unit into standby - the motherboard is powered down but the system services board is still monitoring the IR receiver and front panel buttons so that teh unit can be powered up from the remote or the front panel.
On later units (HDX / UnitiServe 1Tb and SSD and onwards) new EU rulings meant that the units would draw too much current in standby to comply with new regulations and so when they are shut down from either the front panel or the remote they completely power off and can only be powered back on again by switching off at the rear panel and switching on again.
Cheers
Phil
No - if you have an earlier unit then you can power it on and off from the remote or the front panel.
Phil
Bugger EU regulations, being able to switch on and off from front panel sounds convenient to me, especially since the more entrepreneurial elements of our household like pushing the occasional button. Not in a hurry to trade down to an older unit of course, but it was / would be a good feature.
EJ
On later units (HDX / UnitiServe 1Tb and SSD and onwards) new EU rulings meant that the units would draw too much current in standby to comply with new regulations and so when they are shut down from either the front panel or the remote they completely power off and can only be powered back on again by switching off at the rear panel and switching on again.
That explains why I had a hard time getting the dtc to find my unit the few times I tried waking up my 1 tb ns01 grin. Since the unit is shut down I suppose the hifi recommendation is to always leave it running to avoid the sound degradation resulting from turning units off?
Someone mentioned that the older units run hot. The newer unit at least my ns01 is running much cooler than the hdx I had on loan a few years back, so something must have been changed inside the units, or the software since then.
I am not sure that my fan has been oon other than when I start the unit, for a few seconds, otherwise it is the most quiet fan I have ever heard, or not heard.
Claus
Cheers
Phil
That explains why I had a hard time getting the dtc to find my unit the few times I tried waking up my 1 tb ns01 grin. Since the unit is shut down I suppose the hifi recommendation is to always leave it running to avoid the sound degradation resulting from turning units off?
Someone mentioned that the older units run hot. The newer unit at least my ns01 is running much cooler than the hdx I had on loan a few years back, so something must have been changed inside the units, or the software since then.
I am not sure that my fan has been oon other than when I start the unit, for a few seconds, otherwise it is the most quiet fan I have ever heard, or not heard.
The units *SHOULD* be able to run under most circumstances (i.e. well ventilated but at ambient tempertures well into the 30's) without the fan even running...
Cheers
Phil
No - the unit was built before the ruling and is being upgraded and so wouldn't have to comply...
Phil
Cheers
Phil
Phil,
what is exactly different in the audio stage? Should we expect sonic differences btw these two devices?
It's been discussed here before:
https://forums.naimaudio.com/di...ent/1566878605984252
Regards,
Michel
Thanks Michel, but I wonder what Phil means by 'audio stage', the analogue stage? ...or should we expect differences also when connected to external dac?
Cheers
Phil
Phil,
what is exactly different in the audio stage? Should we expect sonic differences btw these two devices?
The analogue audio stages are a *COMPLETELY* different design and so do sound rather different ... IMO the HDX sounds fuller and richer than the NS0x.
Phil
Thanks Phil, is there also a difference in the S/PDIF generation? I mean only technically.
Thanks Michel, but I wonder what Phil means by 'audio stage', the analogue stage? ...or should we expect differences also when connected to external dac?
As I've said on here many times before I don't really want to get into "what sounds better" - mainly because I've reached a point *WITH MY EARS* where I can't tell the difference between an HDX and an NS0x being used as SPDIF sources through my DAC but as analogue feeds into my system then they are quite different sounding presentations.
I'm more than happy to let people with more attuned ears than my own debate which sounds better... :-D
Phil
Bugger EU regulations, being able to switch on and off from front panel sounds convenient to me, especially since the more entrepreneurial elements of our household like pushing the occasional button. Not in a hurry to trade down to an older unit of course, but it was / would be a good feature.
EJ
Roll on cigarettes, guns, unsafe use of tools and a standby that works–enjoy your nanny state! 
Thanks Phil, is there also a difference in the S/PDIF generation? I mean only technically.
As I said, the boards are of completely different design and so I'm quite prepared to accept that they would not give *IDENTICAL* outputs (in regards to the characteristics of the output waveforms when examined closely via a 'scope) and hence possibly sound different...
Phil
Roll on cigarettes, guns, unsafe use of tools and a standby that works–enjoy your nanny state!
Dave - as you well know, I weigh 136kg, my car has a V8 in it and I live in a one bedroom flat with a baseline current draw of almost a kilowatt ...
... for me the nanny state has already told me off, smacked my legs, has me sitting permanently on "the naughty step" and has now given up on me completely...
Phil