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Need help from those with FX55 (0.13) and NF4 board.

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Need help from those who have FX55 *****ONLY**** plus a DFI NF4 board that has been running over some times; and have access to many RAMs (from friends or other sources)

 

My system will never boot in 1st yellow slot with single RAM, and will never boot dual channel with my RAMs. It boot single channel in slot 1&2, but very unstable in windows regardless of what setting i tried.

 

Tested in DFI distributor place, it boots dual channel with certain RAMs only. Tested also on DFI Ultra D and CFX3200, no go.

 

Finally, I changed a DFI Athlon 3000+ CPU, and all RAMs work perfectly now. Changed back my CPU and its dead again.

 

If my CPU is faulty it wont work at all.

 

Appreciate other FX55 (0.13) users to confirm this. Thanks.

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Err? memory controller is something operate independently?

 

But some RAMs did work dual channel on my CPU... T_T how come?

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My system will never boot in 1st yellow slot with single RAM, and will never boot dual channel with my RAMs.
But some RAMs did work dual channel on my CPU... T_T how come?

So which is it? It never booted in dual channel or it did boot in dual channel?

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Err? memory controller is something operate independently?

 

The memory controller is integral to the CPU with AMD. It's also called an "on Die" component.

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So which is it? It never booted in dual channel or it did boot in dual channel?

 

My RAMs never boot in dual channel (1 pair). It boot in single channel (1 pair) but not stable with what ever setting.

 

With single RAM setup, first yellow slot never boot. Orange slot boot and run perfectly. So now i can only run 1 piece of RAM, the other RAM rest in peace.

 

Tested with RAMs at DFi, single sided 2x Kingston 256mb, boot dual channel. Corsair 3200C2PT cannot boot dual channel.

 

Change the CPU solve everything... T_T

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As ExRoadie said you probably need to be contacting AMD.

 

The FX55 memory controller is failing if a different processor can operate with the same RAM.

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err, yeah that is the problem. The on-die memory controller is dead. RMA at AMD and the new unit shall reach me in next few days.

 

T_T

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