First time in this forum!
Yes - I have posted this in another weather forum - but maybe somebody in this forum might give me a hint!
I am currently having an issue with my new system:
Computer: Nexcom NISE 3110P2 fanless industry PC:
http://www.nexcom.com/ProductModel.aspx?id=5156c6d8-0629-4eee-b35e-439bf56dfc6eIntel’s Core 2 Duo 533/667 MHz FSB and DDR2 667/533
3 GB RAM, 64 GB SSD
No mouse, display or keyboard
2 PCI Expansion Slots, used for WLAN + Boltek Stormtracker PCI
Windows 7 Home Premium
Connecting to PC remotely with Teamviewer
The PC is at the moment only running one of the two lightning detector programs; Lightning/2000 or NexStorm Lite.
The problem is that the Boltek card picks up
electrical noise, Lightning/2000 says 25.000/minute, NexStorm Lite detects about 4000/minute. Different SW, gives different results, that is not the problem…..
But all this electrical noise makes this computer totally useless for the purpose of detecting lightning. Lightning/2000 with all the noise is using 50% CPU, less for the NexStorm Lite. It Seems that it is not detecting any lightning when all the noise is present. I think the SW/PC has too much to do, working/filtering all the noise.
Noise is there with and without antenna, so it is an internal PC-problem I believe.
The PC is capable of Input Voltages from 12V-30V DC. There must be a DC-DC converter on the motherboard that convert this 12V-30V DC to another voltage or stabilize it (at 12V?); maybe this one is the source to the problem?
I have tried the following:
1. Put the card in another computer: No problem with noise in the other computer, works very well.
2. Powered the Nexcom PC from 12V battery: Noise still there, the 19V External Switching Power supply is not the problem.
3. Tried with and without WLAN-card, still noise.
4. Changed the Boltek card to the other PCI-slot, still the same.
5. Changed to standard 250 GB HD, instead of SSD, still the same.
6. Moved HD outside the box, no difference.
7. Changed to Windows XP, still the same.
8. Put the Boltek card in a protective antistatic bag while in the PC, same problem.
I have checked the grounding, 0V has same voltage as the chassis.
Removed all unnecessary wiring/cables in the cabinet: like wiring for VDU etc.
I also powered this way: +12V from battery to +12V input, and 0V directly to the chassis. Then the chassis was connected to ground.
Problem is still there. It must be an internal PC problem.
In my old noisy (from fan!) computer - there is no electrical noise problem at all.
My new US$ 2.000,- equipment is useless at the moment
.
If you have any other ideas, please tell me, I really want to have this new valuable PC up and running with the Boltek card w/SW and the Weather-Display software!