Contents
- 1 Are PCIe and CPU cables the same?
- 2 Why do PCIe cables have 2 connectors?
- 3 Can I use a PCIe cable for CPU power?
- 4 Are CPU power cables interchangeable?
- 5 How many PCIe cables do I need for a 3090?
- 6 How much power does a PCIe slot provide?
- 7 How many PCI-E power cables do I Need?
- 8 How many pins are in a PCIe cable?
Are PCIe and CPU cables the same?
They are completely different. The EPS connector is meant to supply power to a motherboard cpu socket while the PCI express connector is meant to supply power to a GPU.
Why do PCIe cables have 2 connectors?
More Than One Power Connector on GPU An 8-pin connector and a 6-pin connector. You can’t use a single PCIe cable for both connectors. In this case, you will need two PCIe cables to power the graphics card. And, because it has high power needs, about 250 Watts, the 300W supplied to it will be sufficient.
What does the PCIe power cable connect to?
PCIe cables connect directly from the Power Supply Unit to the installed PCIe Expansion Card; Graphics Card. A typical PCIe x16 slot on which you install the graphics card supplies 75 watts of power. This, is not nearly sufficient for many mid to high-end graphics cards.
What happens if you plug CPU cable into GPU?
Essentially this means your graphics card will never have seen any damaging voltages from having the polarity reversed on one of its connectors. So in theory the card should be absolutely fine.
Can I use a PCIe cable for CPU power?
No! Don’t do it! You will destroy the motherboard and PSU if you plug a 6+2 PCI-e connector into the 8 pin CPU power connector! The PCI-e connector has 3 12V lines and 5 ground lines, the CPU power connector has 4 12V, and 4 ground, you will have a direct short between 12V and ground if you do that.
Are CPU power cables interchangeable?
Reputable. Modular power cables , and pinning on the PSU side are NOT interchangeable, generally.
Should I use 2 PCIe cables 3070?
In theory yes but not having at least 2 pcie power cables raises alarms bells about the suitability of the psu. Plenty of high(-ish)-power PSUs have dual connectors on some of their PCIe cables for people who want to minimize cable clutter.
What is the 8 pin PCI-E cable used for?
This connector is used to provide extra 12 volt power to PCI Express expansion cards. Many video cards draw significantly more than 75 watts provided by the motherboard slot, so the 6 pin PCI Express power cable was created.
How many PCIe cables do I need for a 3090?
NVIDIA
| Nvidia Geforce RTX 3070 Founders Edition | Nvidia Geforce RTX 3080 Founders Edition | Nvidia Geforce RTX 3090 Founders Edition |
|---|---|---|
| One PCIe 8-pin power cable (1x PCIe 8-pin) | Two PCIe 8-pin power cables (2x PCIe 8-pin) | Two PCIe 8-pin power cables (2x PCIe 8-pin) |
| GPU power: 220W | 320W | 350W |
| Required system power: 650W | 750W | 750W |
How much power does a PCIe slot provide?
75 watts
The PCI Express slot of the motherboard can provide up to 75 watts to the graphics card. 6-pin power connector can provide up to 75 watts. 8-pin power connector can provide up to 150 watts.
Can PCIe use CPU 8 pin?
no as the pin shapes are different so you cpu 8 pin will not fit into a 8pin pci-e port.
What does 6’2 pci-e 4 4 CPU mean?
6+2 is PCIe, 4+4 is EPS. If you’re confused, read your manual. 0.
How many PCI-E power cables do I Need?
The two PCI-E power cables I have split into two separate 6+2 connectors at the end of each cable. Will it be okay to leave one connector hanging since I will only need 3 out of the 4? Thanks in advance!
How many pins are in a PCIe cable?
The thing that had me wondering was that literally all the pcie cables are the same ( 16 pins total, 1 cable having 2 x 6+2) So i was wondering if they want me to use just 1 cable for a 16 pin gpu or something… Through both the pci-e 6 pin connector, or the pci-e 8 pin (or 6+2), power is sent to the video card through three pairs of wires.
Why are the 8-pin CPU and PCI-E connectors?
So – I have a 700W psu with 4 8-pin PCI-e plugs (y plugs), but only one 8-pin CPU (ATX) plug. I’m needing 2 8-pin CPU plugs and 2 8-pin GPU plugs, but they are of course not interchangeable.
Why are CPU power cables not the same?
The CPU power cable doesn’t have this. So that people can be cheap. I would theorize that better power supplies allow you to plug in more cables for more power, while cheaper units will fork the end of the cable and use the sense pin to increase the voltage should too much power be drawn.