LazyBoyQuan

Just to re-literate what's going on in this thread. A few thing that is known here is that due to the energy stored in your CWT-build RM1000 after being unplugged is causing your fans to behave differently from your OCZ 700w (depending on which one it is either FSP or Highpower build) and the Flextronic build digital AX1200i. All of which are based on a different internal design and compliant to a different ErP standard. In order to ensure that this isn't "normal" behavior of this specific unit and not an isolated incident, they are testing it. They can't test the OCZ for obvious reason, but they did found out that Corsair sample of the RM1000 is still holding charge (just like yours) while the AX1200i does not (just like Azh). This immediately shows this behavior can be affecting specifically the RM1000 and the possibly of this happening again has increased. Had you RMA it, you would have been subject to a shipping fee and a few days/week downtime when nothing had change in the end. Recent events had shown someone RMA his AX650 because his spare Antec worked with his computer only to received an unit that had the same issue. The unit wasn't faulty, as it power another system just fine. Regarding the compatibility of the cables, the AXi and RM series as a whole should be interchangeably with on another, as it conforms to Corsair's Type-3 pinouts including 24-pin (only the non-i AX760/860 has a different 24-pin). This allows their sleeved cables kit to compatible with various of series of different OEMs and platforms. As stated above, him lending you the AX1200i won't change much, as it had already been verified that Corsair sample does not hold a charge. The RM750-850 is made by a different manufacturer (Chicony Hipro) and based on a different internal platform/design, while the RM450-650 is also build by CWT and which I believe they are based on a modified version of the same platform as the 1000w. The lower wattage units might work to see if your issues happen, but due to the smaller capacity, it also uses lower rated, less components than the RM1000, so that also isn't a guarantee. If you don't want to do an RMA, you either need to wait for Jonnyguru findings or find someone who is willing to let you borrow his. In the meanwhile, if you are concern with this problem being hazardous for your components, you could used used your OCZ PSUs in the meantime (no need to rework the cables completely, as it is only going to be in there for a short period of time). Otherwise, you need to take the risk and RMA it. Of course, the obvious choice can be get an entirely new PSU altogether. Whatever you do, I hope it all goes well in the end.