As a Kronos 61 mk1 owner for several years, the fan noise and the heat on the front panel have subtly bothered me and I felt apprehensive that it was reliable. If you're like me my heart sank a little bit when I first turned it on at home and the fan started up. The OS 3 feature of fan control (even though it isn't the full functionality with the old mk1 board) gives me complete confidence to rely on the Kronos. I now feel how I should have felt when I first turned it on years ago.
I have used the Kronos for quiet level piano and organ playing in the last month and turned the fan off and monitored the temperature. I now know how hot it gets. So now I can relax and listen to the sound! Kronos now feels like an instrument.
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Fan control in new OS 3 gives me confidence in the Kronos
Moderators: Sharp, X-Trade, Pepperpotty, karmathanever
I am curious, at which temperature does your K61 mk1 settle if you leave it switched on for, let's say, 2-3 hours? Mine sometimes scratches the 80 degree celsius, even with the fan turned on. Reading in another thread, that the bigger models settle around 60-65 (of course they contain more air to be pushed around), for me this somehow seems to be too high...
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drdave2002
- Junior Member
- Posts: 96
- Joined: Wed Sep 26, 2007 8:20 pm
Fan issues or not.
Just as an FYI....
I have OS 3.0.2 installed and I have noticed "fan overheating" flashing at the top of my screen after a couple of hours of solid playing, I have noticed a couple of things that may help.
I have noticed when the SSD's (yes I have two) are being used (samples streaming etc) it does seem to make a difference with the temp avg 82 degrees, i.e. it gets hotter quicker than when I play some of the non sample based sounds. (I have wondered if replacing them with one newer and bigger drive may make an improvement)...so any advice warmly received ....yes I see the irony in that comment!
I may be getting this completely wrong but I do notice when the Fan overheating warning comes on I seem to see some weird notes hanging, I actually thought it may be the keybed and was going to video this, but then i thought who cares, just get on with it.
I could leave the system on longer but I get a bit nervy and switch it off.
I have OS 3.0.2 installed and I have noticed "fan overheating" flashing at the top of my screen after a couple of hours of solid playing, I have noticed a couple of things that may help.
I have noticed when the SSD's (yes I have two) are being used (samples streaming etc) it does seem to make a difference with the temp avg 82 degrees, i.e. it gets hotter quicker than when I play some of the non sample based sounds. (I have wondered if replacing them with one newer and bigger drive may make an improvement)...so any advice warmly received ....yes I see the irony in that comment!
I may be getting this completely wrong but I do notice when the Fan overheating warning comes on I seem to see some weird notes hanging, I actually thought it may be the keybed and was going to video this, but then i thought who cares, just get on with it.
I could leave the system on longer but I get a bit nervy and switch it off.
Korg Kronos 61, M3-73, Karma (all-time classic), X5, Wavestate, Roland Juno Gi, JV, D110, Arturia Microfreak, Modal Skulpt, IK Uno. Nanopad2, M-Audio Venom, Deepmind 12D, Crave, TB3, Maschine Mk3, Moog Werkstat and a few other bits
My K-61 is around 68-70 after a few hours use and no fan, but on hot days (southern hemisphere here) it has been 80.bluelava wrote:I am curious, at which temperature does your K61 mk1 settle if you leave it switched on for, let's say, 2-3 hours? Mine sometimes scratches the 80 degree celsius, even with the fan turned on. Reading in another thread, that the bigger models settle around 60-65 (of course they contain more air to be pushed around), for me this somehow seems to be too high...
Re: Fan issues or not.
I've never seen that message, I guess I'm more concerned about overheating then the Kronos is!drdave2002 wrote: I have noticed "fan overheating" flashing at the top of my screen after a couple of hours of solid playing
Strange committee decision to think users wouldn't be concerned over heat and noise coming from a hardware keyboard. For all the "contact Korg" replies, how did it ever get to production stage like that?
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I changed the fan to a much quieter version.
The keyboard housing never gets much warmer than about 30 degrees C.
Here's a thermal infra red image of the board after several hours of being powered up and played.
https://app.box.com/s/n8vgsb0mg3vab757ek0nsc5iosa5ryaa
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The keyboard housing never gets much warmer than about 30 degrees C.
Here's a thermal infra red image of the board after several hours of being powered up and played.
https://app.box.com/s/n8vgsb0mg3vab757ek0nsc5iosa5ryaa
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It's not surprising that the hottest area is near the transformer & PS.voip wrote:I changed the fan to a much quieter version.
The keyboard housing never gets much warmer than about 30 degrees C.
Here's a thermal infra red image of the board after several hours of being powered up and played.
https://app.box.com/s/n8vgsb0mg3vab757ek0nsc5iosa5ryaa
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I have an X88 and while I don't have an exact reading, my fingers tell me that the surface seems to remain cool (about the same as yours.)
My internal temperature is usually around 60°-65°C with a room temperature of 25°C, but that's with the fan on full as it used to be before the V3.0.2 upgrade. I'm too chicken to turn the fan down. I'm also waiting to see what happens when the summer comes and it's 30°C or more in the house.
drdave2002 and LivePsy, you've both said that your boards get as hot as 80° to 82° C. Have you let them run at those temperatures for a long time? Do you know what the temperature was when you got the warning message? It would be great to know what the "safe" limit is.
[quote="DJ Kronos"][quote="voip"]I changed the fan to a much quieter version.
The keyboard housing never gets much warmer than about 30 degrees C.
Here's a thermal infra red image of the board after several hours of being powered up and played.
https://app.box.com/s/n8vgsb0mg3vab757ek0nsc5iosa5ryaa
..[/quote]
It's not surprising that the hottest area is near the transformer & PS.
I have an X88 and while I don't have an exact reading, my fingers tell me that the surface seems to remain cool (about the same as yours.)
My internal temperature is usually around 60°-65°C with a room temperature of 25°C, but that's with the fan on full as it used to be before the V3.0.2 upgrade. I'm too chicken to turn the fan down. I'm also waiting to see what happens when the summer comes and it's 30°C or more in the house.
drdave2002 and LivePsy, you've both said that your boards get as hot as 80° to 82° C. Have you let them run at those temperatures for a long time? Do you know what the temperature was when you got the warning message? It would be great to know what the "safe" limit is.[/quote]
The fan was fitted some time ago and I'm pretty sure the airflow direction is from right to left making the keys on the left side of the board warm from the warm air plume coming out, whilst the keys to the right hand side are cool because that's where room air is being drawn in. Most of the heat comes from the motherboard. The CPU heatsink stays relatively cool, whilst there's a chip nearby (graphics possibly?) that does get rather warm (guessing ~70 degC) and doesn't have a heatsink, although I think it should. The SSD barely gets warm.
The keyboard housing never gets much warmer than about 30 degrees C.
Here's a thermal infra red image of the board after several hours of being powered up and played.
https://app.box.com/s/n8vgsb0mg3vab757ek0nsc5iosa5ryaa
..[/quote]
It's not surprising that the hottest area is near the transformer & PS.
I have an X88 and while I don't have an exact reading, my fingers tell me that the surface seems to remain cool (about the same as yours.)
My internal temperature is usually around 60°-65°C with a room temperature of 25°C, but that's with the fan on full as it used to be before the V3.0.2 upgrade. I'm too chicken to turn the fan down. I'm also waiting to see what happens when the summer comes and it's 30°C or more in the house.
drdave2002 and LivePsy, you've both said that your boards get as hot as 80° to 82° C. Have you let them run at those temperatures for a long time? Do you know what the temperature was when you got the warning message? It would be great to know what the "safe" limit is.[/quote]
The fan was fitted some time ago and I'm pretty sure the airflow direction is from right to left making the keys on the left side of the board warm from the warm air plume coming out, whilst the keys to the right hand side are cool because that's where room air is being drawn in. Most of the heat comes from the motherboard. The CPU heatsink stays relatively cool, whilst there's a chip nearby (graphics possibly?) that does get rather warm (guessing ~70 degC) and doesn't have a heatsink, although I think it should. The SSD barely gets warm.
Graphics aren't that intensive so that seems odd. Do you know what the highest safe operating temperature might be using the system readout in the fan menu?voip wrote: ...
The CPU heatsink stays relatively cool, whilst there's a chip nearby (graphics possibly?) that does get rather warm (guessing ~70 degC) and doesn't have a heatsink, although I think it should. The SSD barely gets warm.
I'm hesitant to try turning the fan down or off without knowing at what point I should turn them on again.
I've had the Kronos running for 3 hours at 80 degrees in a room 30 degrees (summer in Australia). I did have the fan running but never saw a warning message or odd behaviour. I'm going to write details from now on because right now I turned the K on in a 15 degree room and it recorded 25 at startup but reads 36 after 5 minutes and its 41 after rereading this post and hitting send.voip wrote:drdave2002 and LivePsy, you've both said that your boards get as hot as 80° to 82° C. Have you let them run at those temperatures for a long time? Do you know what the temperature was when you got the warning message? It would be great to know what the "safe" limit is.
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SanderXpander
- Platinum Member
- Posts: 7860
- Joined: Fri Jul 29, 2011 7:23 am
Thanks.LivePsy wrote:I've had the Kronos running for 3 hours at 80 degrees in a room 30 degrees (summer in Australia). I did have the fan running but never saw a warning message or odd behaviour. ...DJ Kronos wrote:drdave2002 and LivePsy, you've both said that your boards get as hot as 80° to 82° C. Have you let them run at those temperatures for a long time? Do you know what the temperature was when you got the warning message? It would be great to know what the "safe" limit is.
B
Okay, based on your experience I took a chance and changed the fan to "low" from "Auto" (my only two choices). It got very quiet and went up about 7°C under the same conditions.
Test:
It was 24-25° in the room. The KX88 was running cool at 56° with the fan on Auto and rose to 63-64° with the fan on low. I recorded a few bars of combi A000 (Era of Kronos) with as many keyboard voices as possible and looped it indefinitely for this test.
Not bad!
