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by jaroslav.henzely
Sun May 17, 2015 7:41 pm
Forum: Troubleshooting
Topic: Request for memtester results [Raspberry Pi 2]
Replies: 7
Views: 2699

Re: Request for memtester results [Raspberry Pi 2]

O.K, I set sdram frequency to Elpida default, recommended by manufacturer in datasheet which is 400 MHz . Default frequency of RAM in Raspberry Pi 2 is 450 Mhz sdram_freq=400 And now, the memtester pass without FAILURE: root@PI:/# /home/pi/Downloads/memtester-4.3.0/memtester 512M 1 memtester version...
by jaroslav.henzely
Sun May 17, 2015 1:17 pm
Forum: Troubleshooting
Topic: Request for memtester results [Raspberry Pi 2]
Replies: 7
Views: 2699

Re: Request for memtester results [Raspberry Pi 2]

After my little research (Googling) it looks like serious issue :oops: A bit flip is when a binary value (a 0 or 1), is corrupted to have the opposite value (changing to a 1 or 0 respectively), which in turn corrupts the value of the number stored at the memory location suffering one or more bit fli...
by jaroslav.henzely
Sat May 16, 2015 4:05 pm
Forum: Troubleshooting
Topic: Request for memtester results [Raspberry Pi 2]
Replies: 7
Views: 2699

Re: Request for memtester results [Raspberry Pi 2]

Damn, looks like RAM failure in my case :cry: Anyway,
enjoy Yours ;)
by jaroslav.henzely
Sat May 16, 2015 1:10 pm
Forum: Troubleshooting
Topic: Request for memtester results [Raspberry Pi 2]
Replies: 7
Views: 2699

Request for memtester results [Raspberry Pi 2]

Hello Since I read the thread about results of running memtester on Raspberry Pi 2, https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=103847 I decided to test mine too. I was shocked, when there was line telling: Bit Flip : testing 168FAILURE: 0xffdfffff != 0xffffffff at offset 0x07027120. I k...
by jaroslav.henzely
Thu May 14, 2015 8:08 pm
Forum: General discussion
Topic: Faulty Pi Memory
Replies: 45
Views: 16615

Re: Faulty Pi Memory

Hello, I got also failures with memtester, see the output below. My model is Raspberry Pi 2, Made in UK, Elpida RAM Check this one: Bit Flip : testing 168FAILURE: 0xffdfffff != 0xffffffff at offset 0x07027120. root@PI:/# memtester 256M 1 memtester version 4.2.2 (32-bit) Copyright (C) 2010 Charles Ca...

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