Hot motherboard? Please help ...

Ebse · Post by **Ebse** » Sun Jun 24, 2012 5:25 pm

Hi all,
two weeks ago the fan of my OASYS 73 (OS 1.3.3, serial# 399) several times gets louder and boosts with full speed.
And then ... it simply switched off!
Restarting the O did not help: again aond again – it switched off.
To make a long story very short:
I bought a new fan (model Arctic Cooling F12; www.arctic.ac) and replaced the original fan (SANYODENKI 109P1212H402).
The new fan seems to work fine.
But when i take a look into the Motherboard Bios, the temperature values seems too high. Unfortunately i have no reference values.

So my question to you expert guys is: what temperatures do you have after the OASYS is powered up for round about 15 minutes??

How to get these answers?
1. You need a standard PC-keyboard plugged into one of the USB ports
2. Switch the O on and immediately hold down STRG, ALT and DEL keys until the lower left corner of the O-display shows "Entering Setup....."
3. Release the STRG, ALT and DEL keys
4. When you see the BIOS Setup Utility startscreen, with the arrow keys of the PC-keyboard navigate to "Silent BIOS/HW Monitor" and select it with the "Enter" key of the PC-keybord (numblock!)
5. Now you should see the current temperature values
6. To finish the BIOS Setup Utility simply swith the O off.
That's it!

I would appreciate it if some of you would post the values.
And it could be also a good reference for all of us to check if the fan and the cooling quality is in good condition.
You know, the O and its hardware is getting older and older ...

Thanks a million!
Regards, Ebse

Dany · Post by **Dany** » Sun Jun 24, 2012 7:03 pm

I will check this later on both of my OASYS. As you, I have to exchange the fan of my older OASYS, because it is louder than the very silent fan of the newer one. Thanks for your hint concerning the temperature, because I am afraid that the temp. on my older OASYS might be the reason why the fan is louder due to higher rpm, which could be an indication of a deeper problem. But I really hope, it's just the fan itself producing the noise.
And it's also good to know that a standard fan will work as a replacement....
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Dany · Post by **Dany** » Sun Jun 24, 2012 11:21 pm

The results for the OASYS-88 (serial number 500+) after ca. 15 Min.:
(Room temp. on a sweltry summer evening: 28 C)

CPU Kernel Temp. 71 C / 159 F
CPU Temp. 46 C / 114 F
SYS Temp. 35 C / 95 F

After ca. 60 Min.:

CPU Kernel Temp. 72 C / 161 F
CPU Temp. 49 C / 120 F
SYS Temp. 38 C / 100 F

Be aware, these are the results from my second-hand purchased OASYS, which could be on the brink of collapse. But the louder fan is the only indication for my hopefully wrong and quite paranoid assumption. The fan was always a bit louder than the one of my other OASYS and it didn't get louder since my purchase several years ago and everything works fine otherwise. But I will exchange the fan.

On a second thought, I am sorry to say, that I will not test my other new purchased OASYS-88 (serial number 2000+), which is guaranteed in a absolute perfect condition and has a very silent fan, because I think it's finally a bit risky to do anything different with your OASYS, than intended by Korg, without any further knowledge. I mean, this is not a regular PC but an integrated system.

I did take the „risk“ of the temp. test on my second-hand OASYS and now after the test, everything behaves just as normal as before. But I am a bit more paranoid towards my new purchased OASYS, because I had to pay too much money for it. I won't even exchange the fan of my second-hand OASYS myself and I will ask a Korg repairman to do this, just out of respect, which I don't have towards my PC's...

I would finally recommend to you to let a Korg repairman check your OASYS!
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Ebse · Post by **Ebse** » Mon Jun 25, 2012 12:05 pm

Thanks a lot for your efforts, Dany!
As you can see, my results are pretty much like yours. I'm relieved to see that.
But my room temperature never climbed up to 28 C. It must be a heavy Job to play your OASYS at 28 C

.

When I tried to replace the original SANYODENKI fan, I couldn't get one at my local PC-dealers; i only got the Arctic Cooling.
To mee it seems that my new fan (Arctic Cooling F12) works slightly more quiet than the old one.
The specifications of the F12 are:
Dimensions: 120 x 120 x 25 (mm)
Fan Speed: 1350 RPM
Air Flow: 57 CFM / 96.8 m3 per hour
Noise Level: 0.5 Sone
Weight: 108 g
Here in Germany I paid 13.99 Euros for it.

It would be great if anyone got the specification for the replaced fan SANYODENKI 109P1212H402 !
I could not find any information for exact that model.

Dany, you are right to be very careful with your two OASYS. But the Motherboard is a standard PC component!
I downloaded the Manual for the MX4GVR Motherboard and for me it was very helpful to understand what's going on under the hood in the first seconds when you switch the power on.
You can't really damage anything as long as you don't save new values to the BIOS setup. So your Oasys did the job as before you were looking into the BIOS.

Regards,
Ebse

Dany · Post by **Dany** » Mon Jun 25, 2012 12:44 pm

Of course the hardware consists of PC components (and not the cheapest ones!), but the whole software structure is completely different. I was just wondering if the fan speed (which increases with more CPU load) is determined in the same way as with a regular PC software or if it works different due to the integrated software structure, which quasi dictates the CPU, what to prioritize.
It would be nice if more OASYS users would test the temp. and post the results, so we can have a more reliable reference value...
But I think the chances are good, that your and my OASYS just work normal.
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