I found the problem: undervoltage.

To lower the temperature, I lowered the core voltage to 1.15v. Low voltage makes it unstable. I raise the core voltage to 1.20v, everything is fine now.

所有跟帖: 

嗬嗬,降低電壓溫度有差別嗎? -mc3361- 給 mc3361 發送悄悄話 (0 bytes) () 08/16/2012 postreply 07:14:42

About 6 degrees: from 58C to 52C. -LAChinese- 給 LAChinese 發送悄悄話 (275 bytes) () 08/16/2012 postreply 09:59:38

I'm an IC designer. -LAChinese- 給 LAChinese 發送悄悄話 (317 bytes) () 08/16/2012 postreply 10:59:11

BRCM?? -mc3361- 給 mc3361 發送悄悄話 (0 bytes) () 08/16/2012 postreply 12:19:05

No, -LAChinese- 給 LAChinese 發送悄悄話 (30 bytes) () 08/16/2012 postreply 14:11:02

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