Just posting this FYI because I wasted a LOT of time and money on it:
I bought an ASUS Rampage iii extreme and the Corsair Dominator GT 12gb (3x4) kit, CMX12GX3M3A2000C9. Corsair recommends this memory on their website for that specific board.
System didn't POST but froze at "Detect memory". After several hours and without changing anything in particular (after several failed boots with slightly tweaked voltages) it suddenly started, detecting 4gb. After 2-3 reboots it stopped working again. The options to try to fix this by tweaking the settings are pretty limited as it doesn't even go into the BIOS and TweakIt is limited in what it contains. The 'MemOK' button fails to fix anything.
At this point the MOBO actually started to burn. Didn't see what it was until after I pulled power because it was behind the CPU cooling tower, but saw afterwards that a small 1cm area (away from any connectors or screws) had been burnt to a crisp. This is using a new Silverstone 1500w PSU with all connectors set right.
Got worried that basically my i980x and 12gb memory chip had all fried, so I bought the cheapest X58 board I could get - the Gigabyte USB3. And everything worked! 12gb detected straight away, totally stable!
I still wanted the Rampage for the waterblocks and features, so I got it RMA'd (luckily!), bought another one. Took extreme care this time with inserting the CPU to avoid any bent pins. And no POST this time either, with the same "Detect Memory" message!
I read some threads that said there might be a short somewhere. It gave 'Detect memory' with all the screws attaching it to the case, and it gives 'Detect memory' when it's standing on an antistatic bag.
I have seen people blaming the memory and the CPU "because the memory controller is on the CPU!" but basically it looks like the Rampage III Extreme design has a big problem with these modules.
I bought an ASUS Rampage iii extreme and the Corsair Dominator GT 12gb (3x4) kit, CMX12GX3M3A2000C9. Corsair recommends this memory on their website for that specific board.
System didn't POST but froze at "Detect memory". After several hours and without changing anything in particular (after several failed boots with slightly tweaked voltages) it suddenly started, detecting 4gb. After 2-3 reboots it stopped working again. The options to try to fix this by tweaking the settings are pretty limited as it doesn't even go into the BIOS and TweakIt is limited in what it contains. The 'MemOK' button fails to fix anything.
At this point the MOBO actually started to burn. Didn't see what it was until after I pulled power because it was behind the CPU cooling tower, but saw afterwards that a small 1cm area (away from any connectors or screws) had been burnt to a crisp. This is using a new Silverstone 1500w PSU with all connectors set right.
Got worried that basically my i980x and 12gb memory chip had all fried, so I bought the cheapest X58 board I could get - the Gigabyte USB3. And everything worked! 12gb detected straight away, totally stable!
I still wanted the Rampage for the waterblocks and features, so I got it RMA'd (luckily!), bought another one. Took extreme care this time with inserting the CPU to avoid any bent pins. And no POST this time either, with the same "Detect Memory" message!
I read some threads that said there might be a short somewhere. It gave 'Detect memory' with all the screws attaching it to the case, and it gives 'Detect memory' when it's standing on an antistatic bag.
I have seen people blaming the memory and the CPU "because the memory controller is on the CPU!" but basically it looks like the Rampage III Extreme design has a big problem with these modules.