V3 - Fan speed and temperature

Post by **Sharp** » Tue Dec 09, 2014 5:33 pm

Sorry I'm not 100% sure, but I would strongly assume it should be blowing towards the PSU and Motherboard. I can't imagine it being much use in reverse.

Regards
Sharp.

jimknopf · Post by **jimknopf** » Tue Dec 09, 2014 5:38 pm

That's what I thought as well, but in a more or less closed box I'm not certain. Does anyone remember for sure?

The Cooltek has very interesting specs compared to other fans:

15,1 CFM (slightly more than the original factory fan)
2000 rpm
13,2 dB(A)

PCFREE · Post by **PCFREE** » Tue Dec 09, 2014 6:01 pm

Maybe some ssd's run hotter than others?

dfahrner · Post by **dfahrner** » Tue Dec 09, 2014 7:01 pm

Sharp wrote:Sorry I'm not 100% sure, but I would strongly assume it should be blowing towards the PSU and Motherboard. I can't imagine it being much use in reverse.

Regards
Sharp.

At least in the original KRONOS, the fan blows in the other direction, pushing air across the SSD, and pulling air across and away from the PSU and motherboard. (If it was blowing air towards the PSU and motherboard, air heated by the PSU would be pushed across the motherboard, increasing its temperature even more.)

As has been noted here, SSDs don't need cooling, and the SSD bracket is just a convenient place to mount the fan to pull air across the PSU and motherboard. The SSD does block fan airflow a bit, though, and adding a second SSD blocks it even more, which may explain why KRONOS with 2 SSDs seem to run at a higher temperature.

df

BobTheDog · Post by **BobTheDog** » Tue Dec 09, 2014 7:32 pm

PCFREE wrote:
BobTheDog wrote:I'm also wondering if people with the higher readings have two SSDs installed,

I have two and my temps with the fan on auto(noisy) mode are higher than those who have the fan turned to low/off.
Interesting!! I have two
What readings are you getting?
It would be interesting to hear more experiences

With fast fan I get 63-66, with slow I'm not sure. Originally I thought it was only a bit worse but then I noticed it was up in the high 70s so I put it back to fast.

I keep the room cool as well, probably 15C.

pedro5 · Post by **pedro5** » Tue Dec 09, 2014 8:07 pm

From what I can remember,I thought that the fan moved air across the psu/motherboard toward the right hand end of the keyboard(normal playing postition etc).

Also,the purpose of the fan is to provide air movement,avoiding hot spots,rather than constant cooling.
There are no vents in the case,only natural gaps between buttons/sliders etc.

According to the manual, even set at a low speed setting,the fan will increase speed appropriately if the temperture goes above a certain level.
Nothing much to worry about,then.....??

Just for the record,my average temp is around 51 with an auto fan speed setting.
(Lucky to have a quiet one,though).

Best Wishes.

PCFREE · Post by **PCFREE** » Tue Dec 09, 2014 8:17 pm

Perhaps it would be useful if everyone who posts their temperature states whether they have one or two ssd's and which fan they're using

AMR · Post by **AMR** » Tue Dec 09, 2014 8:39 pm

PCFREE wrote:Perhaps it would be useful if everyone who posts their temperature states whether they have one or two ssd's and which fan they're using

2 SSD's. 88 Keys.
Constantly runs between 69-72 Celsius. 24h a day, 7 days a weak, 52 weeks per year, ever since late 2011.

No sweat, no reboots, ocasionally good to grill over the PSU area.

Kind Regards,
AMR
http://www.alvaromrocha.com

jimknopf · Post by **jimknopf** » Tue Dec 09, 2014 8:41 pm

dfahrner wrote:
Sharp wrote:Sorry I'm not 100% sure, but I would strongly assume it should be blowing towards the PSU and Motherboard. I can't imagine it being much use in reverse.

Regards
Sharp.
At least in the original KRONOS, the fan blows in the other direction, pushing air across the SSD, and pulling air across and away from the PSU and motherboard. (If it was blowing air towards the PSU and motherboard, air heated by the PSU would be pushed across the motherboard, increasing its temperature even more.)

As has been noted here, SSDs don't need cooling, and the SSD bracket is just a convenient place to mount the fan to pull air across the PSU and motherboard. The SSD does block fan airflow a bit, though, and adding a second SSD blocks it even more, which may explain why KRONOS with 2 SSDs seem to run at a higher temperature.

df

Yes, it seems that you are right:
Looked at the fan thread pictures again, and the side with the printed fan info (that's the air direction side) points away from the motherboard. Glad I checked this once more before replacing the fan again.

Cpilot · Post by **Cpilot** » Tue Dec 09, 2014 9:09 pm

K61 with one SSD and 3GB memory. Temp got above 70 on slow speed so I switched to Auto and the temp got back to 66. Room temp was 22C.
So I think I'll leave it on Auto. Don't mind the fan noise.

Davd C. Polich · Post by **Davd C. Polich** » Tue Dec 09, 2014 9:30 pm

KronosX 61. One SSD. Stock fan. On slow it hovers around 62-68 C after
3 hours on. Kept it on all day and it never went above 68 C.

PCFREE · Post by **PCFREE** » Wed Dec 10, 2014 12:58 am

I wonder if Korg has recommended/optimum temperature operation parameters.....

We know over 80C is not ideal but what about averaging between 72C & 77C
on auto?

Maybe we could do with an official statement

pedro5 · Post by **pedro5** » Wed Dec 10, 2014 1:55 am

Page 808 in the Parameter Guide provides some information regarding temperatures.

Pedja · Post by **Pedja** » Wed Dec 10, 2014 7:54 am

Temperature of room 24C, temperature of processor started from 37C (fan settings to auto mode). After 2h. of playing with various programs and combies, temperature of processor rise to 53C-57C. I noticed that slow mode of fan rise temperature 3C-4C and in this situation fan is really unnoticeable. I don't have second SSD.

psionic311 · Post by **psionic311** » Thu Dec 11, 2014 9:00 pm

Just upgraded today... loving the fan control. As soon as I activated the slow speed, it sounded like it shut off the fan. Thanks Korg!

My temp's been hovering 66-67 after 3 hours. Nice.