XPS 8940, VRM question

The  XPS 8940 service manual makes no mention of removing or installing a "VRM heat sink". It only mentions a voltage regulator heat sink, which is required for all 10th Gen CPUs, above an i3.

If there actually is a VRM heat sink, you can try contacting Dell Spare Parts at 1-800-357-3355. Have Service Tag available...

The VRM only comes with specific models of the XPS 8940, I believe it is the K-series processors that include the heatsink. You can call the spare parts number or chat with customer support and you can purchase the heatsink for $5 with free shipping. The part number is 612F7.

Here is a picture of the heatsink (don't buy this it's $24) https://www.amazon.com/Deal4GO-Regulator-HeatSink-Replacement-612F7/dp/B08SWSLDDP/ref=sr_1_3?dchild=1&keywords=regulator+heatsink&qid=1614718799&sr=8-3

Thanks for the info. Ordered it for $5 and change and saved $27. Much appreciated. 

Hey, I ordered it last night from Dell customer/parts service for $5.35, free shipping. This would be easy to make better with higher fins. I also had the one on the link you sent me ordered (Amazon) as well at $23 +change. That one's going back! 

On the XPS 8940 I got from Dell a few days ago for $700, with a $50 coupon and tax, (see TechBargains, though no external gpu or optical drive) there are only 2 off-set holes to screw down the heat sink, not three or four on the motherboard.

Thanks for the link. I have no affiliation with TechBargains, just think it's a good deal if you need an i7 but not for gaming. I can't remember when I've used a DVD or CD so don't need the optical drive either.

@jessejames49     Hey, I ordered it last night from Dell customer/parts service for $5.35, free shipping. 

In the photos included in your original post, titled "Missing VRM heat sink" . . . note that the orientation of your CPU fan is such that it would move substantial amounts of air directly over the voltage regulators. For this reason, the VRM heatsink is not "missing" . . . it is actually not necessary. In fact, adding a VRM heatsink and blocking the air flow from the CPU fan directly over the VRM may be detrimental to the cooling regime.

Note that the orientation of the CPU fan in the photo below is raised up, and perpendicular to the motherboard, and as such it would not move sufficient air flow directly over the VRM, and the VRM heatsink is added to compensate in this configuration.

(click photo to embiggen)

Hi, I have been attempting to order the VRM for my 8940 but cannot find anyone at Dell who can locate the part number  612F7 or 0612F7.  The only item close is a CPU heat sink for $38?  Would you happen to have any additional information on your quote/invoice that might assist with ordering the VRM?

Thanks 

Someone on the posts here left this:

"If there actually is a VRM heat sink, you can try contacting Dell Spare Parts at 1-800-357-3355. Have Service Tag available..."

What are the dimensions of the xps 8940 vrm heatsink mount screws?

https://dl.dell.com/topicspdf/xps-8940-desktop_service-manual_en-us.pdf   See table 1 screw list.

Unlikely could be easily found in the retail fastener market unless someone had them on eBay.  Best bet order from Dell, depending on stock.

@jessejames49 

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https://www.amazon.com/dp/B09GB317S8

XPS 8940, OptiPlex 7080 7090, G5 SE 5000 VRM Heatsink 0612F7

XPS 8940 copper CPU Cooling fan with heatsink 0VWD01 02NW0M MWXCG

https://www.ebay.com/itm/254599216282