AX850 Gold Static Noise

[baffo]

Hi,

I just bought an AX850 Gold (rev A1W) and it makes a loud static noise when CPU is under load, even with one core at 100% (tested with PRIME95).

 

I've already red all the AX850 related posts and posted here without response :(

 

I've tried disabling C1E and IEST as suggested but the noise persists.

 

The MB and GPU bioses are up to date.

 

So I have some questions:

• is there something else that can I try before RMA it?
  
• is the rev A1W affected by some particular problem?
  
• to directly RMA it, do I have to send it to California? (I'm in Italy)
  
• if i do an RMA through the dealer (nexths.it), can I ask if they have any replacement of a different rev (if there is another rev)?
  

 

 

Thank you.

 

PS.

I apologize for my bad english.

[baffo]

Update:

 

I have tried disabling all the CPU optimization and options

http://img585.imageshack.us/img585/1465/wp000556.th.jpg

 

Sadly the noise persist in either the configurations, even with less than 100% cpu utilization.

 

The voltages seems to be fine

http://img51.imageshack.us/img51/6532/wp000557.th.jpg

 

 

[uPDATE]

 

• Tried another power cord and another grounded outlet, nothing changes.
  
• Another PSU (VX550W) never gave me problems for years, neither when used in this
  new PC (with only one GPU for obvious reasons)
  

[baffo]

bump pls (at least 10 chars)

[RAM GUY]

This is apparent on some AX models.

The whine is only audible and wont effect the performance of the PSU.

With that said, I will be happy to have the PSU replaced as the whine is not intended.

 

Thank you