Question Overheating 24pin

Jan 5, 2020
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Hi everyone, 1st time on this forum and was hoping to get some help seeing that I have no idea whats going on. I have upgraded my pc but still used my old GPU's.
https://uk.pcpartpicker.com/list/qcd98M

I keep ruining into the same issue always. I used to have 2 different 1200psu and now have upgraded to a 1600psu. The 24pin connector to the mother board keeps burning up. I am so paranoid due to it happening over and over that I use mini extension's now not to damage the motherboard. (one mother was trashed after 1st burn)

The 24 pins (12v) only seem to be getting hot when gaming.
 

Mezoxin

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Nov 3, 2019
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i cant see your system configuration currently , but no proper connection or electrical wiring should ever get hot, as they should not cause any form of significant resistive load that would generate heat , if a connection gets hot then something is wrong with that connection
Using adapters is not a good idea but by your description you say that the adapter doesn't get hot on the motherboard side ?, if so then the culprit seems to be the 24 pin that came with your psu and not the motherboard socket , i would ask for an RMA immediately
 
Reactions: KazumaDraken
Jan 5, 2020
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yeah on the motherboard its ok. I have used 3 different kinds of PSU and this keeps happening. Thats why I am wondering if I have something wrong in my settings. only thing that is the same from my build in the past to now is the 3x 780sc.

PCPartPicker Part List: https://uk.pcpartpicker.com/list/4tqRFG

CPU: AMD Threadripper 1950X 3.4 GHz 16-Core Processor (£514.93 @ More Computers)
Motherboard: Asus ROG ZENITH EXTREME EATX sTR4 Motherboard (£469.49 @ Amazon UK)
Memory: Corsair Vengeance LED 16 GB (2 x 8 GB) DDR4-3000 Memory
Memory: Corsair Vengeance LED 16 GB (2 x 8 GB) DDR4-3000 Memory
Memory: Corsair Vengeance LED 16 GB (2 x 8 GB) DDR4-3000 Memory
Memory: Corsair Vengeance LED 16 GB (2 x 8 GB) DDR4-3000 Memory
Storage: Samsung 840 EVO 1 TB 2.5" Solid State Drive
Storage: Samsung 970 Evo 1 TB M.2-2280 NVME Solid State Drive (£142.22 @ Amazon UK)
Storage: Hitachi Deskstar 1 TB 3.5" 7200RPM Internal Hard Drive (£367.00 @ Amazon UK)
Video Card: EVGA GeForce GTX 780 3 GB Superclocked ACX Video Card (3-Way SLI)
Video Card: EVGA GeForce GTX 780 3 GB Superclocked ACX Video Card (3-Way SLI)
Video Card: EVGA GeForce GTX 780 3 GB Superclocked ACX Video Card (3-Way SLI)
Case: Thermaltake Tower 900 ATX Full Tower Case (£211.17 @ Amazon UK)
Power Supply: Antec TruePower Quattro 1200 W 80+ Silver Certified Semi-modular ATX Power Supply
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer (£19.37 @ Amazon UK)
Operating System: Microsoft Windows 10 Pro OEM 64-bit (£99.00 @ Amazon UK)
Monitor: BenQ XL2410T 23.6" 1920x1080 120 Hz Monitor
Monitor: BenQ XL2410T 23.6" 1920x1080 120 Hz Monitor
Monitor: BenQ XL2410T 23.6" 1920x1080 120 Hz Monitor
Total: £1823.18
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-01-05 10:27 GMT+0000
 
Last edited:

Mezoxin

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Nov 3, 2019
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since you are using 3GPU's you are drawing alot of power from these pcie slot as each one of them would pull 75w from the motherboard ,some motherboards that are optimized for such setups has any additional pcie 6pin socket so it can distribute the load , do you have one ?
 
Jan 5, 2020
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That is very strange to me. I am used to seeing a pcie pin if it needs more power and even the manual didn't really talk about the molex. Never the less that did fix my overheating in the 24pin. now to figure out this lotory problem.

Thanks again guys you both been really great help. This had me going nuts.
 

Mezoxin

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Nov 3, 2019
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Molex also provides +12V.;)
yes i know , but its not the best way to supply 12V as it only has 1 x 12v , that space could have been utilised for an additional pcie with 3 live 12v lines , because what is the need for additional 5v anyway for a motherboard , never seen it before
 

Vic 40

Polypheme
Herald
Don't know what reason for it at the Asrock board,maybe keeping in mind more power hungry gpu's like R9 390's similar in age or something like those.
That people buy a psu with just four pcie connectors and they maybe figured it might be necessary to add some power.
 

Mezoxin

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Nov 3, 2019
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There we're gpu's then that had two chips on one pcb, since the motherboard does support quad sli maybe they refer to these. the gtx 690 and such. Well what do i know about why they do what ...
wouldn't make a difference as they would never draw more than 75w from the pcie slot , any additional power is provided by the discrete power pcie socket on the gpu
the need for additional 12v to the pci slot though would be required normally when occupying 3 or more slots as these slots would be pulling 225w from the motherboard
 

Mezoxin

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Nov 3, 2019
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not every mutiple gpu setup should be in SLI or crossfire , I think there is other use cases outside gaming which you use multiple gpu's that are not connected by sli/crossfire
 
Reactions: Vic 40

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