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August 11th, 2021 06:00
Precision 3450 SFF Memory Upgrade
Hi,
I purchased this ram https://www.amazon.com/Corsair-Vengeance-3200MHz-Desktop-Memory/dp/B0143UM4TC to upgrade the total memory in my Dell Precision 3450 SFF with this configured CPU option.
338-BZKL : 11th Generation Intel Core i7- 11700, 16 MB Cache, 8 Core, 2. 5 GHz to 4.9 GHz
Part number: 4X3CY
Description: PRC,RKL,I7-11700,2.5G,65W,8C
The machine gives a 2,5 post code. invalid memory. Why is this memory invalid? It has been tested in other machines and is in known good condition. The machine shipped with this memory:
370-AGEI : 16GB (2x8GB) DDR4 UDIMM non-EC C Memory
Part Number: 9CXF2
Description: DIMM,8GB,3200,1RX16,16,DDR4,NU
The memory is the same speed and the sticks are installed in the correct matching channels. It will not boot with any stick of the new memory installed. Any guidance would be appreciated.
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JOcean
11 Legend
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12.6K Posts
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August 11th, 2021 12:00
It may be the same speed and size but not the same manufacturer. Dell systems are touchy about RAM and Crucial is the most compatible with Dell systems. That RAM is available here.
DenverC116
4 Posts
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August 11th, 2021 12:00
Thank you, I will try this out and update the thread with results.
DenverC116
4 Posts
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August 11th, 2021 12:00
You linked an optiplex 780 manual by mistake, but I do thank you for the Crucial recommendation. This machine was shipped with 16B of DDR4 3200 and lists a maximum of 128GB.
Mary G
6 Operator
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20.1K Posts
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August 11th, 2021 12:00
It is recommended by users here to buy ram from Crucial. They specialize in Dell ram. Compare the specs here. Even with the same specs some other ram doesn't work.
Memory RAM & SSD Upgrades | dell | precision workstation | Precision 3450 Small Form Factor | Crucial.com
The manual says this about the ram required--
type 1066 MHz DDR3 SDRAM (non-ECC only) you didn't mention those specs
The maximum ram is 16gb -- 4 chips of 4 gb each..
bradthetechnut
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August 12th, 2021 17:00
If your new RAM won't work without previous RAM installed, it may be incompatible. Could be something as simple as a voltage difference.
Not sure how your search was, but some people seem to shop for RAM using specs, which is ok. But it's good to add the Dell model in the search term.* That way, if it's in the RAM description that the RAM works with your Dell model, the seller has to back it. When shopping RAM from Crucial, their website makes a person enter PC model before it says what's compatible. *Specs can still be compared.
Crucial is guaranteed to work in Dell's and has a lifetime warranty.
bradthetechnut
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August 12th, 2021 18:00
From what I could find, the Corsair Vengeance RAM is 1.35v. RAM your 3450 came with is 1.2v.
av-user
1 Rookie
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26 Posts
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September 5th, 2021 16:00
Did you try removing the original memory modules the computer came with? Does the computer boot up with only the Corsar modules installed?