grimwulf:
In my experience, PB tech - at least in the Wellington branch have been helpful.
Things that can be easily switched to another machine like CPU/Graphics cards/memory they generally do themselves in store - the one time I had a motherboard issue, it had to go up to Auckland because they couldn't test it in Wellington.
I know it's easy to get worked up and start chanting about the CGA - but for complex technology parts like this that aren't enclosed replaceable devices - the retailer's frankly doing you a favor by testing/troubleshooting before returning to the manufacturer. The RMA process with overseas manufacturers is a hit and miss merry go round.
(There is a flip side, Noel Leemings for example use this 'repair' option as a default - I bought some earbuds from them that had an easily replicatable fault that I demonstrated in store - they insisted that it needed assessemnt/repair and charged me when it came back stating there was nothing wrong with it. Turned them back on in store, and what do you know, same problem. Had to FIGHT them for a refund...)
It may be the case that there's nothing wrong with the motherboard itself, thus, PB's troubleshooting potentially could save you a lengthy month+ of RMA waiting. When mine did have to go off for RMA, when the 'new' one came back PB tested that one and it had the same fault!! So they then offered to swap to a different manufacturer's board and I went away happy.
Echo the other comments here about the time of year too - kinda have to give them the benefit of the doubt - everyone needs a break, and even then, it's a very busy shopping period so that means a higher than usual returns/testing/RMA queue too.
I know firsthand the pain here, but I was happy to have the PB techs handle the RMA for me frankly - there are plenty of horror stories on the web of trying to deal with some manufacturers overseas helplines directly...
By all mean's I'd suggest contacting them for an ETA - but my advice would be to give them a break - at the end of it all if you're not happy with the outcome - you can use that information when making your next purchase.
Problem is, is I've personally tested the motherboard myself and even had a third party do it for a sanity check. Both of us came with the conclusion that it was dead.
My contacting methods, aside from physically showing up, seem to bear no fruit. I'd love an ETA, honestly.