From your 6-pin, you will get 75 watts of power, and the 8-pin PCIe cable will draw another 150 watts additionally. Six pin- 8Pin adapter cables usually are for top-notch GPUs. Thus, if your PSU doesn’t have an 8-pin connector to support your high-ranking GPU, you can utilize a 6-pin to 8-pin PCIe adapter. 4. 2x 8-Pin To 12-Pin PCI-E Adapter Cable

PSU White Sleeved 8pin PCIe Power Cables Corsair Type 4 Gen 4 PSU White Sleeved 8pin PCIe Power Cables

You will find the PCIe slot closer to your computer’s case/IO shield. Any typical motherboard of a PSU has twenty lanes of PCIe, so you can easily spot them. If you have an existing GPU, you need to unplug the connectors and take them out by unscrewing them. There is also a rule of thumb that the PSU runs best when it’s at 50% capacity, but that is a different topic that should be looked at on a case-by-case basis. 12-Pin Connectors There are even some exceptional cases where the GPU will have two 8-pin connectors. By adding the numbers together, we get a total of 375 watts, which is an extreme amount. In addition, you still need to power the CPU ( another big energy consumer) and the rest of your PC’s components. As a solution to this problem, you can use a combination of connector and cable types. The 6+2 connector type is the most common connector that you can use. You can connect your 6-pin cable to a 6-pin connector and draw 150 watts instead of just 75 watts. Apart from that, the cables in 6+2 connector’s type also come rated to offer 150 watts with six-pin cables without catching fire. If your standard PSU has a 4-pin Molex connector and is not compatible with the new-age graphics system, this adapter cable helps you with compatibility. The 4-pin Molex to 8-Pin PCIe adapter cable connects one end with your four-pin Molex pin. Then the other end connects with your 8-pin GPU to draw 150 watts of power supply externally. 4-Pin Molex To 8-Pin PCI-E Power Adapter CableThey can likely modify the hardware type and design if not suited to their convenience. In such cases, when you connect any external component offered by any third party, you will find a lot of compatibility issues. Besides, connecting new-age GPUs to older PSUs also brings connectivity and compatibility issues. This is where the adapters and converters come in. When gaming enthusiasts build a PC, they come across any compatibility issues. In the case of connecting components, the same thing happens as well. You can find power connectors that are not compatible with the motherboard or other hardware in the computer. Undoubtedly computers around the globe get manufactured by different brands and engineers. The GPU power connector is commonly known as PCI express cables or PEG cables. The PCIe express cables are also termed to describe 6-pin connectors. However, the power supply connectors in the motherboard are known as PCIe connectors. Every computer/PSU has PCIe x2, 4, 8, and 16 slots. You can have 2 x molex -> pci-e 8pin ... each molex has only one 12v wire, and each molex is rated for 5A of current, so in theory your adapter would be good for 2 wires x 5A x 12v = 120 watts.

Cable Matters (2-Pack 6-Pin PCIe to 8-Pin PCIe Adapter Power

The usual 12-pin cables with 18 AWG-rated wires can extract up to 500 watts of power, directly bypassing the motherboard. In several cases, you can also find manufacturers offering you premium 12-pin GPU cables with 16 AWG standards and the efficiency of drawing up to 600 watts of power. These power cables in the same physical space can harness four times more power than 8-pin GPU cables. This cable uses a double 4-pin connections and adjusts them to an 8-pin connection. 4-pin to 8-pin is something that will probably be handy with advanced graphics cards. 6-Pin to 8-Pin PCI-E Adapter Cable The 6-pin graphics connector is usually common in lower and mid-range graphics units. As the name says, the connectors have six-pin connecting slots with a 4.2 mm pitch. These GPU connectors can directly draw up to 75 watts from an external power source. The power even comes bypassing the motherboard. Six-pin GPU connectors are suitable when a graphics card demands a minimum of 150 watts of power. 6-Pin GPU Cable SATA can also be adapted to an 8-pin power connector. In this scenario, there will be two SATA connectors for one 8-pin connector. Important Note About Adapters Despite the fact that 150 watts are enough for most graphics cards, high-end cards such as NVIDIA’s RTX 3080 require more than 320 watts and system power of 750 watts. As 150 watts will be enough for most mid-range cards, these usually feature the 6-pin power connector.In such cases, the graphics card draws 75 watts of power from the PCIe x16 connector, and the additional 75 watts of power get extracted from the 6-pin connectors. One hundred fifty watts of power supply is precise and more than expected for several GPUs. But there are also graphic cards that draw 320 or 750 watts of power. These are usually high-end power-hungry GPUs that demand power for superfast data transmission. Second all holes do not need to be populated on the power supply side. 8 pin can 100% function with just 6 pins being used on the power supply side, because two of the pins are just for sensing ground. PCIe x16 also has different types of slots available in the motherboard. A true PCIe x16 slot always comes with 1×16 lanes in the motherboard and will offer you 16-bit data transfer per cycle. However, budget motherboards have 2 x 8 lanes of PCIe slots to offer eight-lane bandwidth. What Is A 6-Pin GPU Cable? Typically, the power connectors demanded by the graphics card always come along with PSUs. However, in many cases, when the GPUs get developed too advanced than the PSUs, the manufacturers offer you power connectors and adapters to make the GPU compatible. This connector can supply the GPU with an additional 75 watts of energy. This means the graphics card will use the PCI Express x16 slot and draw power directly from the PSU (Power Supply Unit).

8 Pin PCIE / GPU Cable ModPC - 8 Pin PCIE / GPU Cable

You can find PCIe in different physical configurations. It includes PCIe x1, PCIe x2, PCIe x4, PCIe x8, and PCIe x16. The PCIe x16 is the most suitable PCIe type for gaming computers and GPUs. It has 16 lanes that transmit data at the speed of 16 bits per cycle. PCIe x16 ConnectorIt is very common to find cable with dual connectors but not an Y cable, instead you get the second connector extended (daisy chained) from the first one. You must utilize this cable if your graphics card needs a 6-pin power connector, but your PSU does not possess it. Generally, it indicates an extremely old PSU, suggesting it may be time for an upgrade. If you insist on retaining your current PSU, note that this type of adapter occasionally necessitates one 4-pin connector, but it is usually two, which is advised. 4-Pin Molex to 8-Pin PCI-E Power Adapter Cable An entry-level graphics card needs 150 watts of power supply through the motherboard for running seamlessly. In contrast, the standard PCIe x16 slots only offer you 75 watts of power. So, if you expect a desirable performance from your PC, you need highly efficient GPU power connectors. The slots here represent lanes. The more you find the number of lanes, the faster the data transmission. In a PCIe x16, you can find data transmission at a rate of 16 bits per cycle; in the older PSUs, you would find Molex connectors. After Molex, the connectors were replaced with PATA and SATA along with time. 2. Can I Plug A 6-Pin Into An 8-Pin GPU?

8-pin EPS12V and PCI-E connectors? Is there a difference between 8-pin EPS12V and PCI-E connectors?

However, you should never mistake connecting a 6-pin connector to an 8-pin slot. Usually, the six-pin GPU cable is only rated to draw 75 watts of power. But when you connect it to an 8-pin connector, it will attempt to draw more power, with the efficiency of an 8-pin connector. This will eventually create a fire hazard and lead to the breakdown of your system. SATA connectors to 8-Pin PCIe adapter cable offer you compatibility with your 8-Pin GPU power cable. Most of the older PSUs have 4-pin SATA connectors, and thus, for one 8-pin PCIe, you would require 2- Pin SATA connectors. This adapter will help you achieve connectivity and draw 225 watts of power supply for your GPU. PCI-e organization imposed the limits of 75 watts for the 6 pin connector, and 150 watts for the 8 pin connector.The adapters and converters help users connect the new-age GPUs to older PSUs without any challenges. You can easily use these adapters to connect to achieve compatibility with high-end GPUs. These adapters are often termed Molex adapters/Molex converters. Here are some adapters or converters that you can use to compatibility with your desired pin connectors. 1. 4-Pin Molex To 6-Pin PCI-E Adapter Cable Some PSU maker could use a different pinout on the PSU, so even if the pinout is standard from the GPU side, it is not from the PSU side. Make sure you do it under supervision after studying everything about the setup. First of all, turn your PSU off while plugging in, then remove the PSU panel and unscrew the older GPU, and take out the cable integrated into the PCIe slot. After introducing 12-pin connectors, NVIDIA also worked for its PSUs with less than 12-pin connectors. Thus, it has also released adapters with two x6 pin connectors. Adapters Or Converters For Connectors The PCI-e limitation of 150 watts is chosen to allow 2 8 pin connectors on a single cable coming from power supply - keep in mind that there's ONE connector plugged into the power supply, usually with 3 or 4 pairs of 12v wires which are then shared between those 2 connectors. So, 2 x 150w max = 300w max, which is within the reasonably safety limits of the connectors on the power supply end (if the power supply is modular)