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July 28th, 2025 14:56
Adding RAM to 7780
Trying to add another 32GB of RAM, have 2 x16 Non-ECC.
How many slots do I have on 7780? Somebody said only 2 and I need to get 2 x 32GB, pricey.
Or there are 4 slots and I can get 2 x 16GB
Thanks
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ejn63
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28.6K Posts
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July 28th, 2025 18:42
You will need the interposer to install the RAM as soDIMMs - and you will need 2X32 to go to 64G.
The other option is a 64G CAMM module - which will be much more expensive (upward if not over $1,000).
Either way, the existing RAM needs to be removed to upgrade.
GeneG_FL
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July 28th, 2025 18:44
Yes, I will order 7780 with 64GB installed.
Thank you for your support.
ejn63
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July 28th, 2025 16:13
There are two different memory technologies used -- either there's an interposer board that takes up to two standard soDIMM modules, or there's a connector for Dell CAMM memory.
GeneG_FL
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July 28th, 2025 16:23
@ejn63 Thanks. I found one for 7770, will it fit 7780, any idea?
I talk to Dell tech support, they did not mention anything about those boards.
ejn63
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28.6K Posts
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July 28th, 2025 17:43
Yes, the memory interposer is the same.
What type of RAM is in the system now (soDIMM or CAMM)?
GeneG_FL
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July 28th, 2025 18:32
32GB 4800MHz DDR5 non-ECC, CAMM