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August 10th, 2025 01:59
Dell optiplex 3070 upgrade CPU and heat sink
I have just bought a dell optiplex 3070 micro with a 9th gen i5 9500T 35w processor,
I want to upgrade the CPU to a 65W I9900
and want to known what model heatsink to use from another MFF one with a full copper heat sink
to improve heat dissipation and keep thermals down
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redxps630
9 Legend
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August 10th, 2025 16:31
look at your current cpu fan. If it says 5V, you can not upgrade to 12V fan.
I think the 5V goes up to 11 CFM and 12V up to 14 CFM.
Re: want to known what model heatsink to use from another MFF one with a full copper heat sink
you may swap out the heatsink only but keep the original fan.
(edited)
redxps630
9 Legend
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14.4K Posts
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August 10th, 2025 04:32
the MFF motherboard for 35W vs 65W cooler may have different DP/N designed with different cpu fan header for 5V vs 12V fans. what is your motherboard DP/N? the 65W cooler may require a 12V fan header. you want to make sure your motherboard can support it before proceeding.
Mat-H
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August 10th, 2025 07:35
The mother board DP/N is 05YDCW
Mat-H
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August 10th, 2025 10:51
@redxps630 The mother board DP/N is 05YDCW