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franco_italy
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Solved!

Usable installed RAM

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HP Compaq Pro 6305 Microtower PC
Microsoft Windows 7 (64-bit)

I have 4GB of RAM installled but it states only 3.20GB usable.  I have  4GB of Ram installed in the first slot of the 4 memmory channels.  How can I overcome this problem if I want to install an extra 4GB will it still tell me that I only have 3.20 GB available.

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Paul_Tikkanen
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Hi:

 

That is actually really good.

 

Sometimes the net usable memory can be as low as 2 GB usable out of 4 GB.

 

Some of the memory is going to run the video and other hardware components.

 

Installing another 4 GB memory module should at least double the net usable RAM.

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Paul_Tikkanen
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Hi:

 

That is actually really good.

 

Sometimes the net usable memory can be as low as 2 GB usable out of 4 GB.

 

Some of the memory is going to run the video and other hardware components.

 

Installing another 4 GB memory module should at least double the net usable RAM.

View solution in original post

franco_italy
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Thank you Paul for your answer.  I suspected it was or could be some sort of configuration problem with the bios or a bios update required.  These RAM/Dimm channels on most hp products are known to take up to 32GB total.

 

Many Thanks for your reply franco_italy

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Paul_Tikkanen
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Prego.

 

Yes, your specific model can take 4 x 8 GB of memory.

 

https://support.hp.com/us-en/document/c03521186

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