What is the highest usable DRAM clock speed for you?
552
29.17%
7
564
0%
0
576
12.50%
3
588
8.33%
2
600
4.17%
1
612
8.33%
2
624
37.50%
9
24 vote(s)
* You voted for this item. [Show Results]

[Volunteer needed]Too high DRAM clock speed MAY be causing you random crashes/freezes
#38
OK, I appreciate memtester is a lousy tool (user space application as opposed to system level) but it is the best one I have. Each run on a 1G file takes about 30 minutes: in 4 runs/2 hours I get say 2 fails at 624MHz. For my Brave Heart this really is a transient problem but I am happier and more stable at 552MHz.


Code:
$ sudo memtester 1G 4
[sudo] password for chris:
memtester version 4.3.0 (64-bit)
Copyright (C) 2001-2012 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffffffffffff000
want 1024MB (1073741824 bytes)
got  1024MB (1073741824 bytes), trying mlock ...locked.
Loop 1/4:
 Stuck Address       : ok        
 Random Value        : ok
 Compare XOR         : ok
FAILURE: 0xfba98a3204294710 != 0xfba98a3200294710 at offset 0x0eb7a9f8.
 Compare SUB         : FAILURE: 0x3a6d34484de28c50 != 0xa48db679f9e28c50 at offset 0x0eb7a9f8.
 Compare MUL         :   Compare DIV         : ok
 Compare OR          : ok
 Compare AND         : ok
 Sequential Increment: ok
 Solid Bits          : ok        
 Block Sequential    : ok        
 Checkerboard        : ok        
 Bit Spread          : ok        
 Bit Flip            : ok        
 Walking Ones        : ok        
 Walking Zeroes      : ok        
 8-bit Writes        : ok
 16-bit Writes       : ok

Loop 2/4:
 Stuck Address       : ok        
 Random Value        : ok
 Compare XOR         : ok
 Compare SUB         : ok
 Compare MUL         : ok
 Compare DIV         : ok
 Compare OR          : ok
 Compare AND         : ok
 Sequential Increment: ok
 Solid Bits          : ok        
 Block Sequential    : ok        
 Checkerboard        : ok        
 Bit Spread          : ok        
 Bit Flip            : ok        
 Walking Ones        : ok        
 Walking Zeroes      : ok        
 8-bit Writes        : ok
 16-bit Writes       : ok

Loop 3/4:
 Stuck Address       : ok        
 Random Value        : ok
 Compare XOR         : ok
 Compare SUB         : ok
 Compare MUL         : ok
 Compare DIV         : ok
 Compare OR          : ok
 Compare AND         : ok
 Sequential Increment: ok
 Solid Bits          : ok        
 Block Sequential    : ok        
 Checkerboard        : ok        
 Bit Spread          : ok        
 Bit Flip            : ok        
 Walking Ones        : ok        
 Walking Zeroes      : ok        
 8-bit Writes        : ok
 16-bit Writes       : ok

Loop 4/4:
 Stuck Address       : ok        
 Random Value        : ok
 Compare XOR         : ok
 Compare SUB         : ok
FAILURE: 0xbafcee1d0048f82a != 0xbafcee1d0448f82a at offset 0x08254d80.
 Compare MUL         :   Compare DIV         : ok
 Compare OR          : ok
 Compare AND         : ok
 Sequential Increment: ok
 Solid Bits          : ok        
 Block Sequential    : ok        
 Checkerboard        : ok        
 Bit Spread          : ok        
 Bit Flip            : ok        
 Walking Ones        : ok        
 Walking Zeroes      : ok        
 8-bit Writes        : ok
 16-bit Writes       : ok

Done.
  • ROCKPro64 v2.1 2GB, 16Gb eMMC for rootfs, SX8200Pro 512GB NVMe for /home, HDMI video & sound, Bluetooth keyboard & mouse. Arch (6.2 kernel, Openbox desktop) for general purpose daily PC.
  • PinePhone Pro Explorer Edition, daily driver, rk2aw & U-boot on SPI, Arch/SXMO & Arch/phosh on eMMC
  • PinePhone BraveHeart now v1.2b 3/32Gb, Tow-boot with Arch/SXMO on eMMC
  Reply


Messages In This Thread
RE: [Volunteer needed]Too high DRAM clock speed MAY be causing you random crashes/freezes - by dukla2000 - 05-24-2020, 04:03 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Phone powers off with high user demands car46999 7 585 04-11-2024, 09:17 AM
Last Post: zetabeta
  Help needed: Jump drive not working UsnR2 5 4,950 07-09-2021, 03:22 PM
Last Post: UsnR2
  Endless crashes on Pine64 received today luciphercolors 4 5,562 11-24-2020, 06:09 PM
Last Post: rocket2nfinity
  Does the PinePhone have a hardware random number generator? LibrePhoneUser 4 6,310 11-12-2020, 07:47 PM
Last Post: megous
  Only enable modem when needed with kill switches sokolgeo 2 4,094 09-20-2020, 04:40 AM
Last Post: sokolgeo
Sad Crashes in every OS - Hardware-issue? rakor 4 6,122 06-22-2020, 09:20 AM
Last Post: Nooblife

Forum Jump:


Users browsing this thread: 3 Guest(s)