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Asus Xonar DX Switches OFF Randomly

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Windows 7 Professional x64
Asus Sonar DX
Gigabyte X58A-UD5
Corsair HX Series 850W Modular Power Supply
Intel Core i7 950 3.06Ghz
MSI GTX 460 Cyclone Overclocked Edition 1GB SLI
G.Skill Ripjaw 6GB (3x2GB) DDR3 1600MHz 8-8-8-24

The card is inserted in the second PCI Express x1 slot:



The absolutely annoying problem is that the card stops working randomly. The usual relay switch sound can be heard (the click) and then only a restart can turn it on:
Quote:
The clicks are not directly related to the power supply; they come from the relays that are used to disconnect the card from its outputs jacks to prevent pops in the speakers when powering on the computer. (There are also relays for switching to the front panel and for switching between the line-in and mic-in functions, but they sound of those is probably masked by your mouse's clicking.)
I tested the card on another machine, where it was working just fine, but when I moved it back to my machine 15 seconds after I played online radio it switched off :mad2:

The computer is not even under heavy load, so it doesn't matter if I play heavy games or just browse the internet.

The floppy cable is properly connected and the power supply is more than powerful to feed it.

The weirdest part is that this same card worked just fine for like a full year and during that time no hardware changes have been made. It just started switching off like 2 weeks ago for no apparent reason.

Does everything look fine here? - Ubuntu Pastebin
Could it be an IRQ problem/conflict?

I'm helpless Any ideas what to test/do in order to establish what the problem is?

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gamerk316 said:
More then likely, its the floppy power connector, especially if the card is working fine in another PC.


If you mean the connector on the card, then it can't be as it works fine on another PC.
If you mean the floppy cable that connects it to a molex = they too work on another pc. And I even used 3 different cables.
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Hmm...software hasn't changed? Try another PCI-E slot then...

If the card and cable both work in another PC, that leaves the PSU [unlikely], motheroboard [also unlikely], PCI-E slot, or software.

gamerk316 said:
Hmm...software hasn't changed? Try another PCI-E slot then...

If the card and cable both work in another PC, that leaves the PSU [unlikely], motheroboard [also unlikely], PCI-E slot, or software.


If by software you mean the audio card driver = on the problem PC I've reinstalled twice the original driver + tried non official driver (Xonar Unified) and the problem is still there.
On the PC that the card works I used the original driver.

I will try another slot and will report back.

I spent hours yesterday testing it on different PCIE slot, with different cables and different scenarios and couldn't make it work properly.

I am not a tester, so I will just return it as faulty. Don't want to waste any more time.
I made a simple 320kbps mp3 simultaneous audio test between board audio and the Xonar = couldn't hear a difference, so I'll just stick with the built-in audio.

gamerk316 said:
^^ Because its mp3 format? .mp3 isn't exactly a HQ audio format...


Are you an audiophile :o 

How many times in a row can you tell the difference between 128kbps and 320kbps? - http://mp3ornot.com/index.php

If that is hard then it is much harder to tell the difference between 320kbps and flac/wav ;) 

So I truly believe 320kbps is HQ :) 

Not just the bit rate; mp3 is a highly compressed lossy audio format. Only reason it caught on was because apple needed a compressed format that would work on an ipod and $5 set of headphones.

CYPER said:
So are you saying 320kbps is not good enough for music files?
I would strongly disagree :) 


Well MP3 320kbps is fine for general listening with a card like the DX and an average pair of headphones/speakers. If you want to go audiophile and invest in a high end setup like for example a Xonar STX with Sennheiser HD 650 then 320kbps may start to show its limits. Honestly ripping all your tracks to a loss-less format like FLAC is unnecessary for the DX as the resolution is not high enough. I have the D1 which is the PCI version of the DX and the $60 EH350; while loss-less sounds good on this setup its not going to justify ripping my entire library to FLAC. However when I play loss-less through my Xonar STX and HD 598 setup the difference is significant as with the later setup the sound resolution is significantly higher to detect flaws in the music. Hope this gives some perspective.
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