Search found 6 matches

by hoppertw
Wed Jun 01, 2016 3:51 am
Forum: Technical Discussion
Topic: battery operation & time date keeping
Replies: 1
Views: 2129

battery operation & time date keeping

I found all the 5V connection joints cannot be switched off ,except I pull away the USB power jack. The fan will run forever using the power on board. While the date and time will lose if now power. Even the D&T can be automatically update from internet, I prefer the timer running off line. I will t...
by hoppertw
Tue May 31, 2016 4:45 pm
Forum: Technical Discussion
Topic: [DISCUSSION] Fans/Heatsinks/CPU Cooling Mods
Replies: 196
Views: 212471

Re: Fan and heat sink

Heat sink is a passive cooler. Fan is active cooler. The best cooler is active plus passive and the bad one is only the passive cooler. I stop the fan and try 95% to 100% loading for over 20 minutes. All the 4 cores run above 70C to 75C. In fact, the cooler effect using both is near the product but ...
by hoppertw
Tue May 31, 2016 5:00 am
Forum: Troubleshooting
Topic: LP won't start, seems a BIOS problem
Replies: 5
Views: 2981

Re: LP won't start, seems a BIOS problem

Do you try to reduce the temperature? By fan or anything. One of my 4 LPs may automatically shut down several seconds after power on. It becomes OK until now when I put a heat sink. If your LP become OK, keep on for several hours or even 3 days. Then your LP will be more stable. This is called "burn...
by hoppertw
Mon May 30, 2016 2:33 pm
Forum: Technical Discussion
Topic: [DISCUSSION] Linux on LattePanda
Replies: 263
Views: 303617

Re: Kali Linux working perfectly

Do you try to recover the win10 by image? The compressed image seems not a bootable image. That means, the boot section still has the win 10 boot manager. If the other OS is installed, the LP can only be re-installed a clean win10 but not the image. Then, I don't know whether all the drivers can be ...
by hoppertw
Mon May 30, 2016 1:00 pm
Forum: Technical Discussion
Topic: [DISCUSSION] Fans/Heatsinks/CPU Cooling Mods
Replies: 196
Views: 212471

Re: Fan and heat sink

Room temperature is 27 C, less than last test. 95% to 100% load over 2 hours. The fan current is 0.08A. Low fan speed and wind is enough if you put a big heat sink and coating with thermal adhesive. The dimension of heat sink is near 40mm x 40mm x 20mm.
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by hoppertw
Sun May 29, 2016 9:18 am
Forum: Technical Discussion
Topic: [DISCUSSION] Fans/Heatsinks/CPU Cooling Mods
Replies: 196
Views: 212471

Fan and heat sink

A 4cm x 4cm fan and 2 heat sinks are good enough to reduce the temperature. The most important is the LP should not be enclosed.
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