Memory modelu failed self-test and failing rank was disabled

[Sahaduna]

Hi, I was cleanig my CPU thermal paste but after replacing the new thermal paste and screw back the fan and turned on the pc I get an error "203 Memory modelu failed self-test and failing rank was disabled" and I have a total Memory Ram of 22gb (8gb, 4gbx2 and 2gbx3). Now all the Ram slots from the second CPU that I changed the paste seem to cause the error and also appears that the memory is availble but unusable. I have put the 2gb Ram sticks in the slots but still geting the message.  Please help

[Laksh1]

Hi Sahaduna,

This HP Z600 Workstation has 6 DIMM Slots for DDR3 ECC Memory.

Each processor supports up to 3 channels of DDR3 memory. To realize full performance at least 1 DIMM must be inserted into each channel. To get full 6 channel support, 2 processors MUST be installed.

So if you are already using 2 processors, please make sure that at least 1 DIMM is inserted into each channel.

You can check the following link to get the best or optimized performance for memory configuration:

http://h20331.www2.hp.com/Hpsub/downloads/HP-Z600-Workstation-memory-configuration-and-optimization....

If the issue persists, even after using the memory module with above configuration details, try swapping with a known good memory module and test because,
203—Memory module failed self-test and failing rank was disabled indicates defective meory module.

Alternatively you can also use the following medium to log a incident id with HP if its a faulty HP memory module:

http://www.hp.com/go/hpsc

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[Dan_WGBU]

Sahaduna, I assume the memory was working before you replaced the CPU thermal paste.  Mixing different DIMMs (8GB, 4GB, and 2GB) does not give the best memory performance, but it should work, and if it was working before, then something happened to your Z400.

The memory controller is in the Z400 CPU.  Did you remove the CPU from the socket when replacing the paste?  It is easy to bend CPU socket pins removing and installing the CPU, especially if the CPU was not installed flat (i.e., not inserted tilted into the CPU socket).  A bent pin could cause memory errors.  

Try reseating the CPU, and look carefully into the CPU socket for any bent pins or debris in the socket.  Grab the CPU from both sides, and lift it straight up when removing it, and hold it flat and put it down (gently) into the CPU socket when installing.  Do not tilt the CPU and put an edge into the socket (to align the CPU), then drop the other edge.  This can bend pins.  

[Maverick_Nik]

Hello Sahaduna,

Since this problem has occurred, post you applied thermal paste and re-fixed all Memory modules.

You may try to configure the Memory modules as per below:

Note: If issue persists, try swapping Memory module with good know memory module to isolate the issue.

I am an HP employee, the opinions expressed here are my personal opinions, not of HP.

Make it easier for other people to find solutions, by marking my answer “Accept as Solution” if it solves your problem.

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