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diehard

Modified BIOS for Microserver N40L enables hidden features

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jmwills

Try reseating the RAM modules.

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ikon

I would do what jmwills says, but it's also possible that the RAM is right on the edge of stability. IOW, it may be pushing the limits of what the system can take. If multiple types of RAM exhibit this kind of behaviour, and it was my system, I would never use 16GB in a production system.

 

I would also run MemTest86 for an extended period (24 - 48 hrs.) to see if the RAM exhibits periodic errors.

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Komornick

Hi. I have strange issue. My NL40 worked fine with 2x2GB ECC sticks which where genuine RAM sticks installed in NL40. I purchased some 4GB ECC RAM sticks and after i install two in the server I have no BIOS post only black screen. Here photos of the sticks:

 

eccram2w0qii.jpg

 

Some idea what can be the problem ? After i press the power button i see red HP logo for a second. Fan is working.

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ikon

Perhaps you should post a photo of the 2GB sticks.

 

BTW, that's quite a few 4GB sticks.

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Komornick

Perhaps you should post a photo of the 2GB sticks.

 

Here one of the 2GB sticks which works fine:

ram28nrp4.jpg

Edited by Komornick

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Joe_Miner

Hi. I have strange issue. My NL40 worked fine with 2x2GB ECC sticks which where genuine RAM sticks installed in NL40. I purchased some 4GB ECC RAM sticks and after i install two in the server I have no BIOS post only black screen. Here photos of the sticks:

 

-snip-

 

Some idea what can be the problem ? After i press the power button i see red HP logo for a second. Fan is working.

 

None of the 12 HP 4GB RAM sticks work in your N40L? Have you tried them individually -- i.e. load 1 HP 4GB RAM stick and power on -- to see if any work? Have you replaced you earlier 2*2GB RAM sticks to see if it still powers on?

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ikon

Have you checked if the new RAM is on the list of those that people have tested as working?

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Komornick

Have you checked if the new RAM is on the list of those that people have tested as working?

Didnt check.

 

None of the 12 HP 4GB RAM sticks work in your N40L? Have you tried them individually -- i.e. load 1 HP 4GB RAM stick and power on -- to see if any work? Have you replaced you earlier 2*2GB RAM sticks to see if it still powers on?

I installed two pairs of 4GB. didnt check mem indyvidually. I installed 2x2GB after and they work fine.

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ikon

Try just one 4GB stick at a time; see what happens.

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Joe_Miner

Didnt check.

 

 

I installed two pairs of 4GB. didnt check mem indyvidually. I installed 2x2GB after and they work fine.

 

Assuming these sticks are on HP's list as compatible with the N40L -- I suspect when you call HP about the their RAM they will want to know if you tested each individually.

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