Thread: How do I get subwoofer working on D945GCLF motherboard?

i don't know for the board(i have that board, but use a sound card), but another option would be to use a subwoofer crossover(about $15-$50) off the stereo channels to get the sub output.

To get the sub/center to work on the intel you have to have all three ports used in the back. Unlike my desktop board the intel would not let me select which one was which. So I just used two ports to be the front and rear for my 4 channel amp and the last to be the sub channel on my factory amps. I have to use a front panel connection for the line in/mic

Good luck

Originally Posted by Deric

To get the sub/center to work on the intel you have to have all three ports used in the back.

I have this done. 2 of them go into the speaker amplifier and the bottom one goes into the subwoofer amplifier. No sound from the subwoofer.

Originally Posted by Deric

Unlike my desktop board the intel would not let me select which one was which.

Huh? So there's no option to select which port is subwoofer out? I thought that's how they all are, only the microphone input can be switched to LFE.

Originally Posted by Deric

So I just used two ports to be the front and rear for my 4 channel amp and the last to be the sub channel on my factory amps.

I tried that, no sound from the subwoofer and the Intel sound test in the application installed with the driver only test the 4 speakers, there's no subwoofer in the test.

Originally Posted by Deric

I have to use a front panel connection for the line in/mic

Good luck

For the subwoofer or you actually use a microphone?

Sorry, I still don't get what you're saying here, I tried using all the ports but that microphone input on the back just will not produce any output no matte what I do. Can you clarify?

This is taken from the manual:

Onboard Audio Subsystem
Desktop Board D945GCLF has a 4-channel (two independent 2-channel audio streams)
onboard audio subsystem that includes a Realtek ALC662 audio codec.
The audio subsystem features:
• Intel High Definition Audio interface
• Advanced jack sense, for the back panel connectors, that enables the audio codec
to recognize the device that is connected to an audio port and retask the connector
via the audio driver.
• S/N (signal-to-noise) ratio: 95 dB
• Microphone input supporting:
― Stereo microphone
― Microphone boost
The subsystem includes the following headers and connectors:
• Front panel audio header, including functionality for:
― Line out
― Microphone in
• Back panel audio connectors that are configurable through the audio device
drivers:
― Line in/retasking jack
― Line out/retasking jack
― Mic in/retasking jack

It also has the RealTek* ALC662 audio codec which says:

ALC662



5.1 Channel High Definition Audio Codec

General Description
The ALC662 is a 5.1 Channel High Definition Audio Codec designed for Windows Vista desktop and mobile PCs. Its performance and functionality meet Microsoft Windows Vista (WLP 3.08) premium requirements. The ALC662 features three stereo DACs, two stereo ADCs, and legacy analog input to analog output mixing, to provide a fully-integrated audio solution for multimedia PC systems.

All analog IO (except CD-IN and PCBEEP) are input and output capable, and three headphone amplifiers are also integrated to drive earphones on front (port-E and port-F) and rear panel (port-D).

The ALC662 supports 16/20/24-bit S/PDIF output function and a sampling rate of up to 96kHz. It offers easy connection of PCs to high quality consumer electronic products such as digital decoders and speakers.

The ALC662 supports host/soft audio from the Intel ICH series chipset, and also from any other HDA compatible audio controller. With EAX/Direct Sound 3D/I3DL2/A3D compatibility, and excellent software utilities like Karaoke mode, environment emulation, software equalizer, HRTF 3D positional audio, and optional Dolby® Digital Live, DTS® CONNECT™, and Dolby® Home Theater programs, the ALC662 provides an excellent home entertainment package and game experience for PC users.

Features
Hardware Features

Meets performance requirements for Microsoft WLP 3.08 Vista premium and mobile PCs
Six channel DAC supports 16/20/24-bit PCM format for 5.1 channel audio solution
Two stereo ADC support 16/20-bit PCM format
All DAC support independent 44.1k/48k/96kHz sample rate
All ADC support independent 44.1k/48k/96kHz sample rate
Supports 44.1k/48k/96kHz S/PDIF output
All analog jack port are stereo input and output re-tasking
Analog differential CD input
Supports analog PCBEEP input
Integrates digital BEEP generator
Up to four channels of microphone array input are supported for AEC/BF application
Supports legacy analog input to analog output mixer
Built-in three headphone amplifiers for port-D (rear panel), port-E and port-F (front panel)
Software selectable 2.5V and 3.2V reference output for microphone bias
Software selectable boost gain (+10/+20/+30dB) for analog microphone input
Two jack detection pins: each supports detection of up to 4 jacks
Jack detection function is supported when device is in power down mode (D3)
Supports two GPIO pins (general purpose input and output)
Supports EAPD (external amplifier power down) control for external amplifier
Support 1.5V~3.3V scalable I/O for HD Audio link
Supports anti-pop mode when analog power AVDD is on and digital power is off
48-pin LQFP ‘Green’ package
Pin-to-pin compatible with ALC88x series, ALC660 series, and ALC26x series audio codecs

Software Features
Compatible with Windows Vista Premium (complies with Microsoft WLP 3.08 specifications)
WaveRT-based audio function driver and logo ready for Windows Vista
Direct Sound 3D™ compatible
A3D™ compatible
I3DL2 compatible
HRTF 3D Positional Audio
Friendly user interface for 2-foot or 10-foot remote control applications
Emulation of 26 sound environments to enhance gaming experience
10 Software Equalizer Bands
Voice Cancellation and Key Shifting in Karaoke mode
Windows Vista style configuration panel to improve user experience
Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice application
Features Dolby® Digital Live and DTS® CONNECT™ software (Optional)
Features Dolby® Home Theater software (Optional)

Applications
Desktop and mobile multimedia PCs
Information Appliances (IA)

My application (realtek sound control app) has a subwoofer control. You might check the bios to see if there is an option to select the sound card mode. I'll get some more details on mine and post back.

Using LF2 here.

If you've enabled the six channel audio out in the soundcard app, check the mixer tab and the sub volume.

GL!

Can I see some screenshots of where you enabled it and I'll see if I have that option on mine?

Bump please. Trying to work on this in between everything else.

Still struggling with this.