front panel problem (800D)

Hello

 

I got my new 800D yesterday, and now I have a problem with the front panel 3,5mm jack. When i use the frontpanel connection, i hear some electrical nois in my headphones. I don't hear this nois when I'm using the minijack at the back of the case. Someone that can help me with my problem?

 

ps: sry for bad english

I had the same problem, I decided to fix it...

 

The front panel PCB design is terrible, the ground of all connectors as well as all ground pins from every connexion are connected together. I had a high pitched electric noise when i was moving my mouse, and a constant annoying background noise.

http://img23.imageshack.us/img23/1096/img0397ix.th.jpg

 

We isolated the ground from the audio connectors by cutting the "ground" portion of the PCB between the audio section and the USB/IEE ground (see the 2 cuts on the picture below).

http://img34.imageshack.us/img34/6237/img0399tk.th.jpg

 

The testbench: Everything works and the sound quality is now perfect, same as when the headphones are plugged directly to the mainboard.

http://img266.imageshack.us/img266/2853/img0398o.th.jpg

 

After putting everything back inside, ALL GOOD... Makes you wonder why it was 3x more expensive then most cases :S

I'm having a similar problem with buzzy audio from the output port and the mic input having trouble deciding if it's mic or subwoofer.

 

Is Corsair replacing these faulty-from-the-factory units?

 

edit: I just mean the panel, not the whole case. Way cheaper shipping that way

I had the same problem, I decided to fix it...

 

 

 

We isolated the ground from the audio connectors by cutting the "ground" portion of the PCB between the audio section and the USB/IEE ground (see the 2 cuts on the picture below).

http://img34.imageshack.us/img34/6237/img0399tk.th.jpg

 

 

 

After putting everything back inside, ALL GOOD... Makes you wonder why it was 3x more expensive then most cases :S

 

Hi. Could you repost this picture with a red circle or something similar showing the position of each of the cuts.

 

Thanks. :D:

Hey, I uploaded the pic again, in full resolution this time, and with small drawing of what to cut.

 

It's important to know that the PCB has 3 layers (protection - green "plastic" / active layer - copper / supporting material - epoxy), and the one you want to section is the middle one. The two top layers are only about 0.2mm each, so cutting 0.5mm deep should be enough.

 

If you use a Dremel like we did, the saw being circular makes it impossible to make a clean cut. You will have to go beyond the red part and cut over the orange one to completely cut through the copper layer. The "big" cut on the pic was the first one as you can guess (the 2nd on top is much cleaner), it was pretty sloppy and we hit the "purple" zone, not enough to cut it completely but try not to ^^

 

http://img38.imageshack.us/img38/9796/cutsk.th.jpg

(huge resolution click zoom on imageShack)

Don't the grounds need to be reconnected some other way though?

I just tried this and all it did was cut out the right-ear sound and disable one USB port....noise is still present in the left-ear.

sounds like you need to work for corsair so they can fix these garbage front I/O panels. or atleast corsair should try this and see if it can be used as a fix so those of us who don't want to cut our pcb can get a solid working replacement.

 

never had this issue with any other brand cases. why corsair doesn't see this and make the fix is beyond me.