Compatible SSD

[slowtrain]

Thanks for the informative replies Sharp and Anthony.

[Sharp]

That first Toshiba SSD was too slow and power consuming that's why engineers installed a fun !

Makes no difference. The original factory SSD was never the bottle neck, it was the SATA controller on the motherboard and the sum of it's other parts. You could install a drive 10 times faster and you would see almost no improvement in speed whatsoever.

When it comes to saving data, the KRONOS doesn't save data from RAM at anywhere even close to the speed it can read data. Some other factor than the motherboard and SSD are at play here.

As for consuming too much power, it's a SSD. Running on little power is what they do best. The spec of the drive was typical of any SSD.

when already Kronos has a fan-less SM Power Supply

Just imagine how weird it was , when already Kronos has a fan-less SM Power Supply , to use a fan for what ? SSD !!!
So before 2 years , I replaced factory SSD (via cloning) with a Sata3 Samsung of 120 GB at 0.7 Watts and it was always
in environment temperature !

The fan is for the entire system. The KRONOS uses passive cooling so there must be some air flow inside the KRONOS to ensure it will work perfect under all temperature conditions.

Removing the fan not a good idea at all and would certainly void your warranty.

If it isn't broke, don't fix it.

Regards
Sharp

[AntonySharmman]

You could install a drive 10 times faster and you would see almost no improvement in speed whatsoever.

Not vast improvement 'cause of sata 2 drivers but benchmark Toshiba SSD and a >500 Mb/sec sata3 SSD in copy/paste
routine inside disk with a 5 Gbs file inside Kronos OS to find out the difference , though speed was not my main concern.
Also I have no reference for saving data time , only for loading (during booting).

The fan is for the entire system. The KRONOS uses passive cooling so there must be some air flow inside the KRONOS to ensure it will work perfect under all temperature conditions.

If this fan was placed there in order to cool the entire system (though I don't think so) , it's a design failure with no vents
guides for air flow , but this I really care is temperature measurements in my lab with external sensors on CPU & SMPS
and temperature there had no noticeable increases , this is enough for me to decide what to do as an experienced technician !
About guarantee , just removing cover screws , it's a lost "case" !

Not intend to argue even to speculate , just drop on table my Lab applied documents , so decision is yours ...

[jeremykeys]

Would the SanDisk SDSSDXPS-240G-G25 be compatible with the kronos?

I'm waiting impatiently! Please let us know if it works!

[rob_tky]

but this I really care is temperature measurements in my lab with external sensors on CPU & SMPS and temperature there had no noticeable increases

Oh you did measure temperature , I was thinking about the same. Thanks for sharing.

[metallo]

Would the SanDisk SDSSDXPS-240G-G25 be compatible with the kronos?

I'm waiting impatiently! Please let us know if it works!

I ordered it last week (for a crazy low price), waiting to have it and let you all know if it is compatible.

[AntonySharmman]

SanDisk Extreme PRO® series SATA 3.0 6Gb/s SSDs are an excellent choice for any reliable application
with up to 10 years factory warranty and seem to work fine with older SATA 2 , I also ordered one !
It could be nice for all users , if someone had the time to gather all forum's information about compatible SSDs with Kronos.

[rob_tky]

The fan is for the entire system. The KRONOS uses passive cooling so there must be some air flow inside the KRONOS to ensure it will work perfect under all temperature conditions.

If this fan was placed there in order to cool the entire system (though I don't think so) , it's a design failure with no vents
guides for air flow , but this I really care is temperature measurements in my lab with external sensors on CPU & SMPS
and temperature there had no noticeable increases

I opened up my Kronos today to take the drive out for cloning. It was taking time and it's not finsihed yet, but I'd like to share something else.

The internals indeed look like cooling was intended for entire system, or I guess mainly power supply. I don't think low power ssd would hardly make any difference. Original Toshiba was ~1.5 W, yes new SSDs are 10 times better, but I don't think 1.5 W would generate much heat. There would be more Watts generating heat in power supply. I think you mentioned your power supply failed at some point, so that might be related.
I opened it up after long period of use, and power supply was still warm, everythign else seemed cold. It's not any measurement, but a good indication.
I does not look like fan was intended for cpu. Airflow is blocked by RAM, and MB is just too far.

Do other brand keyboards have fans?

By the way, did anyone try to connect a monitor to that motherboard? The connector is close to the wall, so that is not easy, but anyway, I'm curious how far the geek spirit goes here .

R

[Sharp]

INot vast improvement 'cause of sata 2 drivers but benchmark Toshiba SSD and a >500 Mb/sec sata3 SSD in copy/paste
routine inside disk with a 5 Gbs file inside Kronos OS to find out the difference , though speed was not my main concern.
Also I have no reference for saving data time , only for loading (during booting).

It's nothing to do with drivers, the KRONOS and KRONOS X both have SATA 2 ports, and no SATA 3.

As for loading, as I said previously, the bottle neck is not the sata controller or the drive. Both already output data faster than the system can handle.

It's even more apparent when saving as the system is easily 20 times slower at saving data than it is at loading. Same as the OASYS is.

A real test is not done by copy and paste as the system does not process anything, a real test is loading and saving data the system has to process.

Try bench mark your factory drive against your SATA3 500MB/s drive loading and saving 1.5GB of samples and I bet you will see almost no difference between the two drives. I also bet saving will take at least 20 times longer than loading did for both drives.

If this fan was placed there in order to cool the entire system (though I don't think so) , it's a design failure with no vents
guides for air flow , but this I really care is temperature measurements in my lab with external sensors on CPU & SMPS
and temperature there had no noticeable increases , this is enough for me to decide what to do as an experienced technician !
About guarantee , just removing cover screws , it's a lost "case" !

Not intend to argue even to speculate , just drop on table my Lab applied documents , so decision is yours ...

You paid a Lab to run tests? Sorry, but I simply can't believe the results you said you got from them purely for the fact that the fan blows directly onto a 60 Watt PSU which is only 5 away. The lab should have seen quite a large measurable difference there alone.

You worry about replacing a SSD which generates almost no heat, yet you give no consideration for a 60 Watt PSU which is in the direct path of the air flow from the fan.

No matter what way you look at this, removing the fan is crazy. I would hope your not advising others to do the same.

Regards
Sharp

[AntonySharmman]

I think you mentioned your power supply failed at some point, so that might be related

Enhance ENO-1612 SMPS' power mos-fet stage works fine in any temperature condition since it's 120 Watts but
it's main problem is a defective shunt regulator , not related to power consumption , which makes this module weak.
I've already repaired the defective one with a equivalent component with some circuit modifications , since I still remember SMPS
designing I used to work in the past.

I do not pay for a lab , I already own a fifty grand fully equipped lab since my University education (PhD) is computing engineering
and satellite communication systems in designing level , I know what I wrote , I've already done all those with documents and
definitely not speculating ... saving procedure is twice improved , I see no huge difference between saving and loading in SSD
environment and only USB 2 port is 10 times slower , try if you like any of my benchmarks , but nobody can revert my lab tests
and a 24 hours fan-less working for 2 years Kronos !

As last , I never said to all of you to try what I did , just dropped on table some working ideas for anyone that is interested ...
This might was the last time to share with you my lab experiences and sorry if you felt misled !

UPDATE : By the way of OS 3 core temperature indication , under 21 C environment , value is permanently 73 C
in a fan-less Kronos but already know that with ATOM before Korg with Win-Server installed , also fan-less !

[metallo]

SSD arrived, tonight ot during the weekend I will mount it in my kronos and let you know how it works

[pedro5]

About to install one,but not sure which one to buy....so many to choose from.

Would this be ok ?....... SANDISK Ultra II 2.5" Internal SSD - 120 GB .

Any further information would be appreciated.

How do I search the forum for relevent posts ?(I usually use google,but not much success for ssd types for the Kronos etc).


metallo

Good luck with your install......it should be straightforward and hopefully hassle free.

Best Wishes.

[slowtrain]

I was wondering the same thing about the Samsung 850 Pro 128GB 2.5-Inch SATA III Internal SSD (MZ-7KE128BW) and the Intel 530 Series SSDSC2BW120A401 2.5" 120GB SATA III MLC Internal SSD. Does anyone have any opinions on the reliability of these? I'm thinking about using the Intel, but I think I read a good review on the Samsung's reliability.

[AntonySharmman]

I can confirm that the following SSD worked fine with Kronos as secondary SSDs ( for me also worked as boot SSDs )

SanDisk Extreme PRO® series SATA 3.0 6Gb
OCZ Agility 3 120GB 2.5" SATA III AGT3-25SAT3-120G
Intel 530 Series 120 Gb SATA 3.0 6Gb

I haven't tried Samsung 850 series 'cause of 3.0W consumption !

[slowtrain]

Thanks Antony. I think I'll go with the Intel. I have a friend who works in IT and is familiar with Linux. I was thinking of having him clone my drive to the new one instead of using two drives. Do you have any opinion on doing that instead of using two drives?