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September 15th, 2021 07:00
i7 Upgrade cooler recommendaton
I have an Inspiron 3847 with the Dell-088DT1 motherboard running an i5-4460. I have upgraded to 16GB DDR3 and have an Nvidia GeForce GTX 750ti video card with 2GB memory. I would like to upgrade to an i7-4970k cpu for improved video editing performance and 4k playback. I've looked at a few cpu coolers and would like to know what cpu cooler would be recommended that would physically fit in my current system with the upgraded cpu if someone has done a similar upgrade.
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redxps630
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September 15th, 2021 09:00
Dell uses a generic backplate with threaded studs (M3 probably) for LGA115# socket in your pc as well as older XPS/optiplex models that use intel 2nd through 9th gen cpus. All the LGA115# socket mounting spacings are the same (75mm, also same as lga1200).
"The 4 holes for fastening the heatsink to the motherboard are placed in a square with a lateral length of 75 mm for Intel's sockets LGA 1156, LGA 1155, LGA 1150, LGA 1151 and LGA 1200. Cooling solutions should therefore be interchangeable."
Many aftermarket cooler such as Noctua or Coolermaster usually use their own custom backplate, which means user needs to uninstall the Dell bakplate first. However the Dell backplate is often epoxy glued to the backside of mobo making it hard or risky to remove. For plug and play cooler upgrade from Dell generic pancake style cooler, you can consider Dell $50 LGA 1200 cooler for XPS 8940 (DP/N vwd01) or a similar cooler for Dell XPS8900/Workstation Tower 3620 (DP/N VWMTJ). this cooler is rated to cover i7-10700k with TDP of 125W. installation video: Dell XPS 8940 - The Easiest Cooling Upgrade, That You Need! - YouTube
VWMTJ
Dell backplate threaded stud (?M3)
3847 backplate
But before you even consider upgrading from the Dell pancake cooler, you need to know that you can not overclock the 4790K in 3847 due to chipset. TDP of 4790k is 88w only 4 w higher than 4790 and 4770. you will run the 4790k at out of box frequency with some turbo. I suggest you test cpu temp first using the stock pancake cooler and if temp is not high no need to bother upgrade unless you just want to do it anyway.
Brockrut
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September 15th, 2021 11:00
Wow.. that was a quick and comprehensive! Thank you! I was not aware the 4970K could not be over clocked on this MB. Now knowing that, I will go with the non K version and use the Dell pancake cooler as you suggested. Thank you for saving me a few $!
oligopolycorp
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September 15th, 2021 14:00
My 2 cents; I went from a i3 4150 to a 4770 on my 3847.I figured I'd at least try the stock cooler.I was able to get a turbo speed of 3.7 out of my turbo rate of 3.9 on a direct x 11 test.I have done a few benchmarks on the Tomb Raider shadow of tomb raider benchmark in direct x 12 and it really gets my cpu cooking at 40 to 80 percent usage and it still turboed up to 3.67 out of 3.9 top turbo speed.I honestly have no clue if it would fully use the turbo at 3.9 if I had an aftermarket cooler.I'm happy with my cpu performance so I'm just going to keep the fan and heatsink clean and carry on.