All Questions
9
questions
1
vote
1
answer
434
views
PCIe power requirements and total capacitance
I'm going straight to the point. In the PCIe CEM specification, regarding to +12V supply, they appear different maximum values of the allowed capacitance depending of the power of the card (10,25 or ...
- 69
2
votes
1
answer
2k
views
Confirm if Dell PowerEdge R720 Power port mixes pin layout/wiring of PCIE and keying/shape of CPU port
This cable 1 works fine to power a PCIE accelerator device (Intel N3000-N FGPA PAC) on Dell PowerEdge R720. The power connector that plugs into the riser seems to break power cable/port standards/...
- 21
0
votes
0
answers
85
views
What is the order of power intake across a GPU's power connectors?
On an Nvidia/EVGA 3080/3090 FTW3 GPU, there are three 8-pin PCIe power connectors. How does the "ordering" of power draw work across its 3x power ports (+ its PCIe slot)?
For example, if a ...
- 1,751
3
votes
1
answer
253
views
What is the name / Part Number for PCIE 6+2 Power Connectors (Specifically the +2 connector without a retention clip)
This is the part I'm trying to find:
I can find the 6 pin connector (I think), but I can't seem to find the +2 pin connector. I'm attempting to make some cable assemblies for a weird but fun project ...
- 115
0
votes
1
answer
181
views
Necessary to put all power planes together for 4-layer pcb?
It is my first time working on a 4-layer pcb design with PCIe golden finger. I have 2 voltage levels, 3.3V and 12V. I set the third layer to be the power plane. Does it mean that I have to always put ...
- 29
2
votes
1
answer
3k
views
Max power draw on voltage rails of mini PCIe Card
I am designing a custom mini PCIe card. What is the max power I can draw from the 1v5 rail, and the 3v3 rail?
- 543
2
votes
2
answers
3k
views
What are the part numbers for PCI-E 8-pin and 6-pin power connectors?
https://upload.wikimedia.org/wikipedia/commons/a/af/PCI_Express_Power_Supply_Connector-female_PNr%C2%B00438.jpg
I believe they are Molex Mini-Fit series but I can't find the exact match. Thanks.
...
- 327
1
vote
2
answers
5k
views
Can I remove unneeded 2 plugs from PCI-E power cable?
I have a PCI-E PSU power cable and I have two unneeded pins at the end (only need 6 power pins but have 6+2). Can I simply remove the pin where these two wires enter the PSU?
I wouldn't think that ...
- 301
6
votes
2
answers
286
views
Can Thunderbolt be used to power the host device?
Could the Thunderbolt interface be used to provide power to the PCIe host device? In this case, this would be a battery-powered mobile device, connecting to a range of peripherals. Thunderbolt here ...
- 239