Tested Overclock Values – Failures and Successes

This page contains sets of overclock values which I have experimented with on my Raspberry Pi 2. It forms an appendix to the main post: Overclocking and Stability Testing the Raspberry Pi 2 – Part 1: Overclocking

On stock Pi 2 hardware, without any cooling solutions (besides a naturally vented case), the final maximum settings for CPU, GPU, RAM, and voltage were:

arm_freq=1050
core_freq=525
sdram_freq=450
over_voltage=3

The following is a set of various attempted overclock setting values extracted from Config.txt – all values except tested, working, entries are commented (initial ‘#’ character)

Test values were left in the config file to progressively narrow down a stable set of values.

#note: do not set force turbo with over voltage - voids warranty

# raspi-config overclock raspi-config 'pi2' settings
#errors running stability tests
#arm_freq=1000
#core_freq=500
#sdram_freq=500
#over_voltage=2

# failed - errors running 4 x : sudo memtester 16M 10
#arm_freq=1000
#core_freq=500
#sdram_freq=483
#over_voltage=0

# failed memtester 140M 1 (4 parallel) bit flip (twice)
#arm_freq=1050
#core_freq=525
#sdram_freq=450
#over_voltage=2

# failed memtest 140M 1
#arm_freq=1100
#core_freq=550
#sdram_freq=450
#over_voltage=4

# failed memtest 140M 1
#arm_freq=1050
#core_freq=550
#sdram_freq=500
#over_voltage=4

# failed
#arm_freq=1050
#core_freq=550
#sdram_freq=475
#over_voltage=4

# failed - hard crash
#arm_freq=1100
#core_freq=525
#sdram_freq=450
#over_voltage=3

# Stable memtest 140M 2 - 2 runs.
# note: not tested with mprime or stability.sh
#arm_freq=1050
#core_freq=550
#sdram_freq=450
#over_voltage=3

# failed
#arm_freq=1067
#core_freq=533
#sdram_freq=467
#over_voltage=4

# failed deep testing
#arm_freq=1067
#core_freq=533
#sdram_freq=450
#over_voltage=4

#===== STABLE =====

# tested - stable
#arm_freq=950
#core_freq=500
#sdram_freq=450
#over_voltage=2

# 1 day testing - STABLE
#arm_freq=1000
#core_freq=500
#sdram_freq=450
#over_voltage=2

Related Posts

• Links: Raspberry Pi and Gaming Emulation via RetroPie
• Overclocking and Stability Testing the Raspberry Pi 2 – Part 1: Overclocking
• Overclocking and Stability Testing the Raspberry Pi 2 – Part 2: Stress testing the CPU with mprime
• Overclocking and Stability Testing the Raspberry Pi 2 – Part 3: Stress testing the RAM with Memtester
• Overclocking and Stability Testing the Raspberry Pi 2 – Part 4: Stress testing the SD card storage with the Stability Test Script

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