UP2 not powering on.

Got my Up2 Pentium 8/128 today.
Have a fresh Meanwell 5V/5A 25W Power Supply.
After attaching the Powersupply, the UP gives a very short Flash
of the 4 LEDs and than nothing. Tried with Screen, Keyboerd and USB Stick
attached and without in some combinations.
How should the LED on the UP behave at normal Operation?
Do the UP Power on if there is no bootable USB Stick attached and no
Operating System installed?
Is my Up broken?
Have a fresh Meanwell 5V/5A 25W Power Supply.
After attaching the Powersupply, the UP gives a very short Flash
of the 4 LEDs and than nothing. Tried with Screen, Keyboerd and USB Stick
attached and without in some combinations.
How should the LED on the UP behave at normal Operation?
Do the UP Power on if there is no bootable USB Stick attached and no
Operating System installed?
Is my Up broken?
Comments
check if the voltage is stabilized and is 5V
here's the official power supply:
https://up-shop.org/up-peripherals/126-up-squared-power-supply-5v6a.html
As I said check that the power supply that you have is a 5V stabilized power supply
For the pentium version you need at least a 5V / 5A stabilized supply
Regards
Nicola Lunghi
Meanwell GS40A05-P1J
it is a stabilized 5V /5V Powersupply.
Do you state that the Up2 board only functions with the Powersupply delivered by your Shop?
Can you give me hints about how the LED on the Up2 Board should behave if Power Plugged in.
What does a shot Flash of all 4 LED when pluggin in Power mean?
Mind you I am using the official power supply as supplied by the UP Shop, and everything seems to be working OK, although all I have done so far is to update the UEFI BIOS.
@Montala, the leds that flash when things go wrong are above the NICs
Without Heatsink the Temperatur in the Firmware Hardware Monitor goes about 52°C.
I took away most of the Thermal Compounds from the Heatsink an only letting so much that the
Die is coverered, i coud re attach the Heatsink and the Board is working.
I think that the Thermal Compund was shorting the little resonators on the Surface of the SoC.
@JRamirez , in your case. You didn't screw UP Squared into a chassis, right ? If so, I will conduct further investigation on the thermal pad/ heatsink design.
If I recall, the all-metal chassis had additional pads - and does not flex.
Eric Duncan - UP Evangelist - My thoughts are of my own free will
Answered? Please remember to mark the posted answered to highlight it for future visitors!
I did test with and without the Chassis and with the standard screws and the long ones for mountin in the chassis.
After removing the most of the thermal pad that goes over the little resonators, the screws can be fully fitted to the heatsink and the board.
Hi Ailing,
Could you please clarify which screws you are referring to here?
Are they the ones already fitted to the UP Squared boards, or those supplied with either of the cases?
Thanks!
Due to the mechanical design difference, we didn't receive the problem on the metal chassis yet, if there is any case, please report.
The bronze color stand-off...don't screw it too tight.
If it is indeed the stand-off screws which you are going to ask your chassis supplier to change, can we assume that once you have received these that replacement screws will automatically be sent out to all customers who have already purchased the plastic chassis from you?
If this is not going to be the case then perhaps you could advise us accordingly, and at least offer them for purchase, at a nominal sum, for those customers who do require them, or would prefer to use them.
Thanks!
Something similar happened to me also.
For me UP2 was working fine for most time, but under load it was randomly switching off and making noise like buzzing and not powering on for a while.
Now after loosening standoffs UP2 is working again.
But. loosening standoffs is not very reliable solution. What if heatsink gets hotter, expand and board shuts down in critical moment.
So where is problem ? Something make contact and create short circuit ? what it is ? can we insulate it ? Is there more reliable way of fixing this ?
For now I lost confidence in UP2
We understand users tend to screw the standoff tightly to make sure they are doing a right job.
However, CPU is a very delicate silicon, that's why we have a thermal pad on top of it to protect and increase the efficiency of heat conduction.
the over-pressure could cause a problem.
We will add this as a precaution in assembly guide, and also reduce the thread of stand-off.
Thanks for your support!
For me the UP2 Board was not bootable even with the normal screws and even without the ABS Chassis.
The Heatsink does not shorten any Components on the Board, i am really shure that the Problem lies within the Thermal Paste what is shortehing the Components on the SoC.
After removing most of the Thermal Paste the UP2 Board works even with fully tightened Screws.
It is thermal pad, not thermal paste.
CPU is a very delicate silicon, that's why we have a thermal pad on top of it to protect and increase the efficiency of heat conduction.
Did you buy your PSU at the UP shop?
The led turn off is normal means that the FPGA is correctly initialized by the BIOS.
Did the BIOS menu show?
Did the OS boot?
Regards
Nicola Lunghi
That is the problem, I am getting nothing at all on the HDMI. I use the monitor my computer is connected to so I press input on it and it goes through the different inputs, but does not find the UP2 signal on the DVI port where I have a DVI to HDMI adapter in.
Does it really only have one LED to go by? There is no boot sounds and no LEDs blinking to indicate activity from what I can tell.
I got the PSU in the package with my UP2 that I ordered from the Kickstarter. At least I am 90% sure. I also looked at the PSUs you can order and it has the same pattern on the back.
Try to remove the wifi board and see if the board at least show the AAEON logo on start
Also double check that your monitor works on the selected port.
If the board shows no logo at startup there's a chance that you've get a faulty board.
Contact directly AAEON for a replacement here https://up-shop.org/content/5-cancellation-and-return-policy
Regards
Nicola Lunghi
Thanks, I will give this a go.
I still think its likely the PSU though. Cant it just be that they sent me a PSU for the first UP board? As far as I can tell it did use a 4A PSU. The PSU clearly says 4000 mA output while it is also mentioned many times that the UP^2 requires 5A.
I took some photos of it:
Ahh, they were more than 2MB in size.
I figured I would try this... but since I got this through the kickstarter I dont have an account on the store and if I made one I dont think it would show the UP^2 I got from the Kickstarter.
I still think its just the wrong PSU. I guess I would have to go through the Kickstarter? I shared images of the PSU I got to show that its the one I got from AAEON (If they did the Kickstarter) to show that its only 4000mA and I am pretty sure it should say at least 5000mA as output.
Well, this sucks.