Soundcard stutters, random reboots

September 12, 2010 at 15:27:21
Specs: Windows 7
Odd Symptoms

1) Upper green to lower yellow DPC spikes every
few minutes - sometimes not high enough to reach yellow
but I've seen some hit red. These spikes can make the audio

2) Occasionally crashing, often accompanied by repeating
audio. Sometimes results in a complete freeze or just

3) Occasional late detection of USB devices. For example,
sometimes I have to wait before the keyboard is picked
up so that I can login to windows.

System Spec

Motherboard: Gigabyte 770TA-UD3 (rev 1.0) with latest f4b BIOS
CPU: AMD Phenom II 955BE (Quad core)
PCIe Graphics: Palit GTX 460 768mb
PCI Soundcard: M-Audio Delta 44 (PCI)
Onboard Soundcard: Realtek HD Azelia 5.1
Memory: 2gb (2x1gb sticks)
Keyboard: Razer Lycosa
Mouse: Razer Deathadder
Network: Links Wireless G Speedboster (USB)
External HD: Externally powered 500gb Maxtor Basics
Webcam: Microsoft Lifecam VX3000
OS: Windows 7 Ultimate 32-bit

Things I've checked

Windows Memory Diagnostic - 2 Passes: Passed
CPU Temp: Never above 50 under heavy load.
GPU Temp: 81c Max under load - Max recommended is around 105c

See More: Soundcard stutters, random reboots

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September 12, 2010 at 16:32:11
First, disable the onboard audio and use the M-Audio card only.
If that doesn't solve the DPC problem, download the latest driver from M-Audio. If you're already using the newest driver, try an older one or two. While new drivers often fix known issues, they sometimes introduce new bugs in the process!

If software doesn't whip your card into shape, try running it without any USB devices plugged in.

Nothing? Then move it to another PCI slot. If you have one, test it in a different computer--preferably one with an Intel chipset, as they tend to be the most compatible.

If nothing works, you probably have a bad card. As a last resort you can try to persuade M-Audio to send you updated firmware for your card.

I once had an Auzentech X-Fi Prelude sound card that caused DPCs and hardware interrupts on every motherboard I tested it with, including my i925-based "guinea pig". Turned out to be a bad card, even though it had no problem putting out insanely great sound.

HTPC | Pentium M @ 2.82GHz, 2MB L2) | 4GB | 1.0TB | Radeon HD5750
Blu-Ray | Win 7 Pro | HDMI out to Onkyo TX-SR707 AV receiver

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