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Observer jwizard93
Observer
5,146 Views
Registered: ‎06-07-2016

VC707 will not turn OFF!

Hello,

 

Out of the blue I no longer have the ability to power down my vc707 by flipping the on/off switch. The board is in a PCIe slot and connected via JTAG.

 

I can only power down the board by shutting down the PC.

 

Please advise.

 

Thank you.

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6 Replies
Xilinx Employee
Xilinx Employee
5,114 Views
Registered: ‎10-24-2013

Re: VC707 will not turn OFF!

Hi @jwizard93

How about when the board is standalone? See if there is any mechanical failure around the slot.

 

Thanks,Vijay
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Community Manager
Community Manager
5,102 Views
Registered: ‎07-23-2015

Re: VC707 will not turn OFF!

@jwizard93 On/Off is a mechanical switch and so the best way to figure out if it has gone bad is to check it out as a standalone unit. 

 

Pull it out of the PC and see if you can control the Power On/Off using the switch

- Giri
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Observer jwizard93
Observer
5,086 Views
Registered: ‎06-07-2016

Re: VC707 will not turn OFF!

Hello,

 

Thank you for your replies. I have removed the board from the chassis, removed the JTAG cable, and powered the board through the standalone power adapter. The LEDs and fan come on at the moment of connecting the power supply and do not respond to the on/off switch. What sort of issues is this going to cause me and do you have knowledge of how this might have happened?

 

 

Thank you 

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Observer jwizard93
Observer
5,082 Views
Registered: ‎06-07-2016

Re: VC707 will not turn OFF!

I followed page 109 of UG885 while installing the board in the Chassis. I was confused by "no PCIe" symbol on the power connector but of course that confusion was trumped by simple and explicit instructions in the user guide to slide the card into PCIe slot AND provide connection from 4-pin ATX using the cable that came with the board.

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Observer jwizard93
Observer
4,845 Views
Registered: ‎06-07-2016

Re: VC707 will not turn OFF!

I understand Xilinx doesn't have information on every motherboard and it's PCIe characteristics. In fact, I don't even know what my MB is in my work PC. But, isn't it possible that I purchased a defective Xilinx board? I feel like this post merits more response as it is a Xilinx hardware failure regardless of the cause. Also, @vijayak no there is no mechanical failure visible anywhere. Also status lights are good. Also a few of the main voltages report ~100 mV less than max values in the system monitor, which according to UG is ~100 mV more than typical value. So my call, from my limited knowledge, is that the board is fine but the switch is broken. Ever happened before? Are the electrical characteristics of the switch at all important for the power signals? What is the exact meaning of the "no PCIe" sticker on the power connector header? I found mention of the sticker in UG but it consisted of just the exact same image of "PCIe" with a circle and slash over it, no explanatory text that I could find. I would really appreciate at least some follow up from Xilinx if you could. Or did Xilinx not make the board? It says Xilinx all over it.
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Xilinx Employee
Xilinx Employee
4,721 Views
Registered: ‎10-24-2013

Re: VC707 will not turn OFF!

Hi @jwizard93,

 

Where did you purchased the board from (Online from Xilinx site /distributor)? If you bought from Distributor, please contact them for further help.

If you have purchased online and the board is in warranty, please file a RMA SR @ http://www.xilinx.com/support/service-portal.html

Thanks,Vijay
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