Z620 GPU connector OEM part?

[JderulWoodsend]

Today I received the HP cable ordered to replace the currently cheap 6-pin to 8-pin adapter I bought from local store.

I ordered  a HP as in 1st picture, but I received a cable shown in the 2nd picture which is a bit different.

The cable I received states : "460621-003 REV.A    FOXCONN C1133" written on a plastic scotch tape.

Is it right, I mean... is it a true OEM HP cable or is it fake ?

[SDH]

We can't see your pics until a moderator releases them.  Use Google to view images for that number and one that ends in -002.  Also 721859-001.   There were different generations of these from HP.... they all work.

By looking at the images you'll be able to recognize if you've got a real one.  I doubt it would be fake.  There are enough images there to get a clear idea of the wiring... and of the normal HP ID labels.

[Brian1965]

I found this seller who is indicating multiple part numbers for these cables.

If you type the part number I've highlighted in yellow into Google images, it is the cable on the left that appears the most. 

[JderulWoodsend]

You should see them now. 

They look pretty similar, except for the circular thingy surrounding cables  (circular thing is nearby P2 connector in the black cable).

I don't know what is that functionality, but that is the reason of my paranoia.

@Brian - I have the same problem with unmoderated picture 😁

[Brian1965 · Accepted solution]

The 'round thing' is a ferrite ring, (aka ferrite core, ferrite bead), and it's function is to reduce emf (electro-magnetic-field) interference that any electrical cable produces when a current is passed through it. i.e. If there is no power in the cable, then the cable won't generate any emf, it's only when the cable is live. The more power passing through the cable, the higher the emf generated - you commonly see these on TV mains cables, inside computers (on the main power loom), etc. A powerful emf will interfere with any adjacent electronic equipment, (basically anything with an Integrated Circuit on its circuit board). Since the PCI auxiliary power rails are rated at 18A each, some bright chap at HP design thought it prudent to fit the ferrite ring, (probably as a pre-cautionary matter, as opposed to being 'required' for system stability). Due to various re-designs and supplier changes, (and cost reductions), these ferrite cores tend to vanish on subsequent re-designs.

They don't make a difference in the Z620 machines, my PCI power adapter cables don't have any ferrite rings and I have a Quadro P2000 and GTX 1080 ti in my Z620.

[JderulWoodsend]

Thank you. I installed the Foxconn connector. I don't see any difference, other than me being much more relaxed and secured because of running an OEM brand connector.