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MichaelColder

Has an additional 4 pin Atx Powercable slot

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Posted · Original PosterOP

Hi there

 

Should I ignore this or have to pick a different power supply.

 

Specs are in the message,

I was building my PC on PCpartpicker just to let you guys know.

 

Thanks

C6D2FE9E-35F4-46F5-8D8C-31BEDAC01467.jpeg

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i had to figure this out recently. you only need 8 pin for eps, 8+4 is only needed in extreme cases. from what i was told, even a 3900x really wont need it. I'm running 8 pin eps on my x570 tuf gaming atm with a 3700x, no issues.

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Extra 4-8 pins are for PCIe power. You may or may not need that depending on if your graphics card is powered off of PCIe. Generally speaking, though, if there's extra pins, there's a reason for them, and you should plug power into all of them. You'll just have to see what it does with your particular build I guess.

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3 minutes ago, Chris Pratt said:

Extra 4-8 pins are for PCIe power. You may or may not need that depending on if your graphics card is powered off of PCIe. Generally speaking, though, if there's extra pins, there's a reason for them, and you should plug power into all of them. You'll just have to see what it does with your particular build I guess.

extras power for PCIE comes in PCIE 6 or 8 pins. the extra CPU power connectors are for OC high end CPUs that suck power 3900x and 3950x can needed them for high OCs

 


Good luck, Have fun, Build PC, and have a last gen console for use once a year. I should answer most of the time between 9 to 3 PST

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1 minute ago, GDRRiley said:

extras power for PCIE comes in PCIE 6 or 8 pins. the extra CPU power connectors are for OC high end CPUs that suck power 3900x and 3950x can needed them for high OCs

 

Keyword being "extra", yes extra power to the card comes from it's on power cable, but it also draws power from the PCIe lane. 8 pin on lower boards is enough to power CPU and PCIe lanes, the extra 4-8 is for PCIe when the full 8 pins are going to the CPU for overclocking or just beefier CPU.

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Just now, Chris Pratt said:

Keyword being "extra", yes extra power to the card comes from it's on power cable, but it also draws power from the PCIe lane. 8 pin on lower boards is enough to power CPU and PCIe lanes, the extra 4-8 is for PCIe when the full 8 pins are going to the CPU for overclocking or just beefier CPU.

CPU 4 or 8 pins don't give power to the PCIE lanes. that is why some WS or high end boards designed with lots of GPUs in mind will have an extra 6 or 8 pin above the PCIE slots to feed extra power.


Good luck, Have fun, Build PC, and have a last gen console for use once a year. I should answer most of the time between 9 to 3 PST

NightHawk 2.0: R7 2700 @4.0ghz, B450m Steel Legends, H105, 4x8gb Gell EVO 2866, XFX RX 580 8GB, Corsair RM750X, 500 gb 850 evo, 500gb 850 pro and 5tb Toshiba x300

Skunkworks: R5 3500U, 16gb, 250 intel 730, 500gb Adata XPG 6000 lite, Vega 8. HP probook G455R G6

Condor (MC server): 6600K, z170m plus, 16gb corsair vengeance LPX, samsung 750 evo, EVGA BR 450.

Bearcat (F@H box) core 2 duo, 1x4gb EEC DDR2, 250gb WD blue, 9800GTX+, STRIX 660ti, supermicro PSU, dell T3400.

Rappter(unfinished compute server) HP DL380G6 2xE5520 24GB ram with 4x146gb 10k drives and 4x300gb 10K drives, running NOTHING can't get anything to work

Spirt  (unfinished NAS) Cisco Security Multiservices Platform server e5420 12gb ram, 1x6 1tb raid 6 for plex + Need funding 16+1 2tb raid 6 for mass storage.

PSU Tier List      Motherboard Tier List      How to get PC parts cheap    HP probook 445R G6 review

 

"Stupidity is like trying to find a limit of a constant. You are never truly smart in something, just less stupid."  @CircleTech

 

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3 minutes ago, Chris Pratt said:

Keyword being "extra", yes extra power to the card comes from it's on power cable, but it also draws power from the PCIe lane. 8 pin on lower boards is enough to power CPU and PCIe lanes, the extra 4-8 is for PCIe when the full 8 pins are going to the CPU for overclocking or just beefier CPU.

Do you have any examples of literally any board that powers the PCIe slots through the CPU power cable, rather than the two 12V pins on the 24 pin? 


 

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Why do you hoomans give your builds a name? Here's my build, which I shall call "Do as I Say, Not As I Do" (seriously, don't get this build)

Spoiler

Ryzen 1500X @3,925 GHz

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18 hours ago, Chris Pratt said:

8 pin on lower boards is enough to power CPU and PCIe lanes,

The eps connector isn't even close to the pcie slot

It has nothing to do with it.


Fun Fact: The Meshify c is the best case to ever exist.

 

 

Wārudobītā

Spoiler

3100.

B550m TuF plus.

Hyper x rgb 8 gig stick. (MJR or CJR  i still don't know lol).

1650 super.

CX450.

MX500.

NX500.

 

 

 

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8 minutes ago, MichaelColder said:

Graphics card: ASUS ROG Strix 2080 TI

Your GPU has nothing to do with it don't worry about that 

A single 8 pin eps can provide up to 384w of power 

Which you won't reach with any ryzen chip.


Fun Fact: The Meshify c is the best case to ever exist.

 

 

Wārudobītā

Spoiler

3100.

B550m TuF plus.

Hyper x rgb 8 gig stick. (MJR or CJR  i still don't know lol).

1650 super.

CX450.

MX500.

NX500.

 

 

 

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5 minutes ago, MichaelColder said:

So I have to change power supply?

Perhaps, but it would not be because of that connector, really, you wont need it. You gpu will have its own cables for power, and unless you overclock using nitrogen you likely never need that extra connector.

 

As a tip, post your parts list in "new builds and planning" section, state your budget and goals/games/programs, and lots of helpfull people will assist you in making sure it all works out :)

 

 

 

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I've run into this as well. First build, and my PSU only has a 4+4 connector, but the mother board has both an 8 pin and a 4 pin connector. I know I can purchase a molex to 4 pin ATX (StarTech of course) and my PSU has a single 12v rail, but is there some magic going on behind the scenes on higher-end/priced PSUs that is not happening on the molex connectors?

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10 minutes ago, Kyle.harvey said:

I've run into this as well. First build, and my PSU only has a 4+4 connector, but the mother board has both an 8 pin and a 4 pin connector. I know I can purchase a molex to 4 pin ATX (StarTech of course) and my PSU has a single 12v rail, but is there some magic going on behind the scenes on higher-end/priced PSUs that is not happening on the molex connectors?

No.

 

Using such an adapter is dumb.

 

Just use the 4+4 and call it a day.

 

Reference:  https://imgur.com/aJa33RZ

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