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HIFI DiGi+ Digital Sound Card I2S SPDIF Optical Fiber for Raspberry Pi A+&B+
  • Verified Owner
  • Owned For: less than 1 day

5 out of 5 eggs Raspberry Pi Digital Audio Heaven via external DAC 06/04/2015

This review is from: HIFI DiGi+ Digital Sound Card I2S SPDIF Optical Fiber for Raspberry Pi A+&B+

Pros: This card appears to be a clone of the "HifiBerry Digi+" card supported by Raspbian and works perfectly with a RaspberryPi2 Kodi media center using an external DAC. Setup took about five minutes following the HifiBerry guide "Configuring Linux 3.18.x":
(1) Enable SPI and i2c in /etc/modprobe.d/raspi-blacklist.conf
- comment-out "#blacklist spi-bcm2708"
- comment-out "#blacklist i2c-bcm2708"
(2) Remove stock audio driver in /etc/modules
- comment-out "#snd-bcm2835"
(3) Add device tree overlay in /boot/config.txt
- add "dtoverlay=hifiberry-digi"
(4) Make this card the default ALSA device in /etc/asound.conf
- add "pcm.!default {
type hw card 0
}
ctl.!default {
type hw card 0
}"
(5) Unlike HifiBerry Digi+, this card includes an IR receiver for remote control. However, there's GPIO conflicts, Since CEC works over HDMI with Kodi, I had no need for the "lirc" IR remote control framework. So I disabled "lirc" to prevent conflict with GPIO26 (GPIO header pin 37):
- To disable: in /etc/modprobe.d/raspi-blacklist.conf, add "blacklist lirc_rpi".
- To enable: in /boot/config.txt, add
"dtoverlay=lirc-rpi,gpio_in_pin=26,debug=on"

After a reboot, the card is enabled:

npm@kodipi:~$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_digi,
Default Audio Device
npm@kodipi:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_digi], device 0: HifiBerry Digi HiFi wm8804-spdif-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0

Select this device in the Kodi media center and all playback will occur over SPDIF. A big advantage of using this card over USB audio with Kodi is that the default Kodi setup always resamples to 48k over USB; with this card, the exact sample rate of the video or audio files are output to the DAC, even 192kHz/24 bit files.

Cons: Doesn't include four "M2.5x12mm" spacers and screws to mount the card securely to the Raspberry Pi 2. Without a spacer, it is possible for the weight of the SPDIF cable to bend the card towards the RaspberryPi2, potentially shorting the SPDIF transformer to the HDMI connector. In a hurry to get this working, I found a ceramic spacer that doesn't quite fit, but at least prevents the board from accidentally touching the RaspberryPi2 connectors.

Other Thoughts: Unlike the HifiBerry Digi+, this card comes with a SPDIF transformer "standard." (however, the transformer equipped Digi+ cards are not available in US/Canada). It also comes with an additional IR remote control functionality. All that extra functionality and features ends up costing less than half the price of the HifiBerry Digi+ after shipping and taxes! This is a great deal for a well-manufactured board that is fully supported by Raspbian.

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HyperX Black Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX16C9B1BK2/8
  • Verified Owner
  • Owned For: 1 day to 1 week

5 out of 5 eggs Upgraded ASUS M4A78t-e from 1333 to 1600Mhz and 4G to 8G 09/03/2013

This review is from: HyperX Black Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX16C9B1BK2/8

Pros: Worked "out of the box" recognized as DDR3-1600Mhz but with slow timings.
Passed Memtest86+ once at default "out of box" speeds.
Passed Memtest86+ three times (5hrs) w/ custom timings 9-9-9-27-36 1T @ 1.65v

Cons: Had to manually set timings and voltage to get rated speeds
XMP-1600 : (800 MHz) 9-9-9-27-36 1T @ 1.65v

Other Thoughts: The ASUS M4A78t-e Mobo supports overclocking memory at
XMP-1600 : (800 MHz) 9-9-9-27-36 1T @ 1.65v
using AMD Phenom II 955 Black Edition 3.2Ghz

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NIELS M.'s Profile

Display Name: NIELS M.

Date Joined: 08/15/13

  • Reviews: 3
  • Helpfulness: 2
  • First Review: 09/03/13
  • Last Review: 06/14/15
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