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Vohuman
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Message 1 of 4
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Z840 black screen

HP Recommended
Microsoft Windows 10 (64-bit)

Hi everyone

i have a wierd issue with my dual cpu z840...

cpu: 2 xeon 2699 vt

ram: 32 gig 2133 ecc

gpu: rtx a4500

power: 1125w

when i instal 2x16gig ram on it ( slot 1&2) every thing is ok ! But when i instal third 16gig ram on slot 3 , system do not boot ! No bios! Just a black screen with no errors ! Its so wierd... please help...

 

3 REPLIES 3
old_geekster
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Message 2 of 4
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HP Recommended

@Vohuman , welcome to the Community.

 

Here is the Maintenance and Service Guide for the computer.  On Page 20, Chapter 1, Hardware overview, it tells all of the pertinent information for the memory.  Read it carefully to assure you have purchased the correct memory and are populating the slots properly.

 

Please click the "Yes" button if my reply was helpful and "Accept as Solution" if your problem is Solved!!



I am not an HP Employee!!
Intelligence is God given. Wisdom is the sum of our mistakes!!
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Vohuman
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Message 3 of 4
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every thing is ok ! but still black screen....

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old_geekster
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HP Recommended

Thank you for the additional information, @Vohuman!

 

Since the memory is correct, I wonder if it would make a difference if you installed a pair of 16 GB modules, instead of one module.



I am not an HP Employee!!
Intelligence is God given. Wisdom is the sum of our mistakes!!
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