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Issues with two 8-pin CPU connectors on motherboards

Issues with two 8-pin CPU connectors on motherboards

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Paris2006
Junior Member
39
10-06-2016, 12:28 AM
#1
You’ve got a solid setup but need to double-check your connections. The CPU requires two 8-pin connectors for full power, so having only one on your motherboard could limit performance. If you plan to add an air cooler later, it’s better to ensure both connectors are present now. Stick with the stock cooler for now unless budget allows for upgrades.
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Paris2006
10-06-2016, 12:28 AM #1

You’ve got a solid setup but need to double-check your connections. The CPU requires two 8-pin connectors for full power, so having only one on your motherboard could limit performance. If you plan to add an air cooler later, it’s better to ensure both connectors are present now. Stick with the stock cooler for now unless budget allows for upgrades.

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jrobbs7
Member
235
10-17-2016, 04:39 AM
#2
Only one 8-pin connector works just fine, particularly with an i5. Upgrading to something like a 12900K could make overclocking useful, though it probably isn’t necessary.
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jrobbs7
10-17-2016, 04:39 AM #2

Only one 8-pin connector works just fine, particularly with an i5. Upgrading to something like a 12900K could make overclocking useful, though it probably isn’t necessary.

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johnitipek
Member
80
10-17-2016, 10:59 AM
#3
Each 8-pin EPS module provides up to 150W of output, meaning you’ll need multiple units if the CPU requires more than that. For a 12500 model, the peak turbo output is around 117W, which is sufficient with a single unit. But higher-end options like the 12700K can reach up to 190W at maximum turbo, so you’d need both connected.
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johnitipek
10-17-2016, 10:59 AM #3

Each 8-pin EPS module provides up to 150W of output, meaning you’ll need multiple units if the CPU requires more than that. For a 12500 model, the peak turbo output is around 117W, which is sufficient with a single unit. But higher-end options like the 12700K can reach up to 190W at maximum turbo, so you’d need both connected.

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janaandnicole
Junior Member
7
10-22-2016, 09:58 PM
#4
The 12900K delivers 241W under maximum turbo, so using EPS together is essential.
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janaandnicole
10-22-2016, 09:58 PM #4

The 12900K delivers 241W under maximum turbo, so using EPS together is essential.

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JenniferBell
Junior Member
18
10-22-2016, 11:22 PM
#5
On consumer forums the situation might vary, but my experience is with AMD Epyc servers running high-power chips using a single EPS connector smoothly. It’s hard to picture servers needing a different EPS standard.
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JenniferBell
10-22-2016, 11:22 PM #5

On consumer forums the situation might vary, but my experience is with AMD Epyc servers running high-power chips using a single EPS connector smoothly. It’s hard to picture servers needing a different EPS standard.

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Suiss_Jamie
Junior Member
16
10-23-2016, 01:38 AM
#6
Maybe. I'm not overly familiar with server platforms, but those Epyc chips have power envelopes that far exceed what a single EPS should be able to deliver, by double or more. 150W is just not enough power. Either it is different for servers, or something else is going on in your particular scenario.
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Suiss_Jamie
10-23-2016, 01:38 AM #6

Maybe. I'm not overly familiar with server platforms, but those Epyc chips have power envelopes that far exceed what a single EPS should be able to deliver, by double or more. 150W is just not enough power. Either it is different for servers, or something else is going on in your particular scenario.

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DavidDayz
Junior Member
40
10-30-2016, 07:37 PM
#7
I believed a 150W unit uses an 8-pin PCIe connection, while an EPS could handle 300W—yet it would overheat significantly due to insufficient cooling.
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DavidDayz
10-30-2016, 07:37 PM #7

I believed a 150W unit uses an 8-pin PCIe connection, while an EPS could handle 300W—yet it would overheat significantly due to insufficient cooling.