PCIE 3 x8 adapter for OCP 2.0 cards - $18

[foureight84]

Anyone used dell server network cards for 13th/14thgen servers with one of these adapters? They look like they use ocp 2.0 but not sure if it's a modified standard with a different pin out or amything

Also, do any adapters exist for using Dell "mini mono" HBAs in a normal pcie slot? Haven't found much info by googling but not sure if that connector has a different name that I'm just missing

(This one right? Amazon.com) If those are the ones you're talking about then I have two of them, you're going to need to modify the PCIE bracket, they only come with the short brackets. Otherwise they're standard.

 

[aatls123]

(This one right? Amazon.com) If those are the ones you're talking about then I have two of them, you're going to need to modify the PCIE bracket, they only come with the short brackets. Otherwise they're standard.

Oh nice I wasn't expecting Dell to have an official adapter for it! How much did you pay for them? Looks like they're going for about $50-60 USD on eBay and AliExpress currently but shipping from China so not sure what tariffs would end up being

 

[foureight84]

Oh nice I wasn't expecting Dell to have an official adapter for it! How much did you pay for them? Looks like they're going for about $50-60 USD on eBay and AliExpress currently but shipping from China so not sure what tariffs would end up being

I bought them on from that Amazon seller for $16/each.

 

[turns2stone]

You're right about that. I made the blower fan adapter after seeing odd traffic spikes during file transfers. I haven't noticed since.

Hey there, checking back in as I received the adapter card, and I also got a couple of 4010 fans.

The fan mounting points line up to the ones in the card, but the connector pin does not (top left in pic). I assume I need to strip the connector off the fan and solder directly to the 5V points on the card?

Can you tell me more about your adapter? Is it a 3D print, or ?

 

[foureight84]

Hey there, checking back in as I received the adapter card, and I also got a couple of 4010 fans.

The fan mounting points line up to the ones in the card, but the connector pin does not (top left in pic). I assume I need to strip the connector off the fan and solder directly to the 5V points on the card?

Can you tell me more about your adapter? Is it a 3D print, or ?

View attachment 48842

I would use a multimeter to check the voltage of that connector and also the two unpopulated through-holes. My card is slightly different. I has a 3 pins (middle is ground) either side provides 5v or 12v.

I've attached the OCP adapter. It clips to the back of the card (current view in your photo) and the 4010 fan screws onto the back which should directly blow air across the card's heatsink.

EDIT: Updated v2 STL to have clearance under the 4010 to not hinder air intake.

 

[turns2stone]

I would use a multimeter to check the voltage of that connector and also the two unpopulated through-holes. My card is slightly different. I has a 3 pins (middle is ground) either side provides 5v or 12v.

I've attached the OCP adapter. It clips to the back of the card (current view in your photo) and the 4010 fan screws onto the back which should directly blow air across the card's heatsink.

EDIT: Updated v2 STL to have clearance under the 4010 to not hinder air intake.

View attachment 48846

Ah OK, cool! I'm printing it out now - thanks!

And here I was thinking the 4010 fan needed to be mounted to blow on the chipset heatsink, but really it's the SFP that gets hot.

 

[turns2stone]

@foureight84 I am feeling mighty dumb... can you show a picture of your card with the mount + fan installed?

 

[foureight84]

It's the chipset that gets really hot. If you were using some of the older 10gbase t transceivers then that would get hot. Otherwise the SFP transceivers stay relatively cool.

 

[turns2stone]

It's the chipset that gets really hot. If you were using some of the older 10gbase t transceivers then that would get hot. Otherwise the SFP transceivers stay relatively cool.

View attachment 48848
View attachment 48849

Very helpful! OK so this makes me think I'm missing a part of the 3D-printed shroud, to cover the fan and direct the air "blower style" through the card? The file should be two pieces?

Looks like I need a part this indicated by the purple arrow? I already printed the 'mounting bracket' as seen in your first picture above.

 

[foureight84]

Very helpful! OK so this makes me think I'm missing a part of the 3D-printed shroud, to cover the fan and direct the air "blower style" through the card? The file should be two pieces?

Looks like I need a part this indicated by the purple arrow? I already printed the 'mounting bracket' as seen in your first picture above.

That part isn't printed. 4010 fans come like that. Did you get one of these? Amazon.com

 

[turns2stone]

That part isn't printed. 4010 fans come like that. Did you get one of these? Amazon.com

Ah darn I got the wrong fan! This is what I ordered: https://www.amazon.com/dp/B0CWYLC4LH?th=1

So I need to order what you linked. I didn't realize I would be arranging the fan in a blower-style.. thought I would just be mounting directly above the heat-sink "hole".

My card only seems to have 5V and 12V traces.. how will I power a 24V fan?

 

[turns2stone]

The relevant side of my card:

 

[foureight84]

Ah darn I got the wrong fan! This is what I ordered: Amazon.com

So I need to order what you linked. I didn't realize I would be arranging the fan in a blower-style.. thought I would just be mounting directly above the heat-sink "hole".

My card only seems to have 5V and 12V traces.. how will I power a 24V fan?

You can keep those if you have space. Just double side tape it to the back of the card of the cutout hole. You need 12V or 5V fans. 24V fans can run on 12V but they will just run at half the max rated speed it wouldn't hurt them.