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Hot molex connector

ShmoeMo
By ShmoeMo
in Troubleshooting
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I recently just got a gtx770 by gigabyte, I was doing  a stress test today with MSI Kombustor and i noticed the molex connector on the molex to 8 pin was insanely hot

estimate about 100c is this a bad sign or just normal?

CPU: i7 6700 @ 4.25Ghz on 1.26 volts

RAM: HyperX 8GB @ 2666Mhz (doesnt like to be oc'd)

MOBO: MSI Z270 Gaming M3

GPU: Galax GTX 970 @ 1500Mhz  (with modified black EXOC bios)

Power Supply: Cougar CX700

SSD: Samsung 750 EVO 120GB

HDD: Segate Barrcuda 1TB

Case: Cougar Panzer Max

 

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Molex connectors are not meant to carry that high current. I'd suggest to get a better power supply that has the connectors that you need.

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Could be a bad connection between molex and adapter

You really shouldn't be using an adapter to connect a GPU to a molex. Molex are for fans and LEDs not power hungry GPUs.

"If you do not take your failures seriously you will continue to fail"

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This is bad..........the heating may be due to the fact that the gfx card is sucking a lot of current or due to arcing between the connectors due to a improper connection!

Try reconnecting the adapters or else buy a new power supply sooner or later! Molex is not meant to power these power hungry cards but only for peripherals imo. 

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I really dount its at 100C. How did you test it, by hand? If so you should have burnt hand by now. Its more likely something around 30-50C. 90-100C is what boiling water is.

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There's no reason to be using a molex to 8-pin if you're running one graphics card...

 

If you're running two then you probably should upgrade to a beefier power supply anyway.

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As far as I know the Gigabyte's GTX 770 comes with a double-molex to 6pin and a double-molex to 8-pin. Check that they are all well and securely connected.

 

On the other hand, I checked your profile for specs and the PSU you listed (Cooler power 700W) comes with a 6+2 PCIe connector, so why don't you connect that to 8pin on gfx card?

About the PSU, a 700W unit for $50 or something is a piece of crap that will destroy your PC. You should really invest in a good 80+ unit because a good 400-500W PSU will outperform a crappy 700W PSU any time 'n' day, especially under high loads.

MOBO: Gigabyte G1.Sniper M3 | CPU: Intel i7-3770K @ 4.5GHz | GPU: 2x Gigabyte GeForce GTX770 2GB WF3 OC Edition | RAM: Kingston HyperX Blue DDR3-1600 XMP 16GB (4x4GB) | SSD: Intel 530 Series 180GB SATAIII | HDD: WD Caviar Blue 1.0TB SATA III & WD AV-GP 3.0TB SATA II | PSU: Corsair AX 760 | Case: Chieftec DX-02B | CPU cooler:  Corsair H100i with 4 Noctua NF-F12's in Push-Pull | Fans: 3x Noctua NF-S12A Front and Rear-intake, 1x Noctua NF-A14 Bottom-intake, 1x CoolerMaster MegaFlow 200 Side Panel-intake, 1xNoctua NF-F12 Top-exhaust | OS: Windows 7 Ultimate 64-bit | Keyboard: Logitech G510 | Mouse: Gigabyte Aivia Krypton

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  • Author

Thanks for all the help guys :) I will be definetly investing in a new psu

CPU: i7 6700 @ 4.25Ghz on 1.26 volts

RAM: HyperX 8GB @ 2666Mhz (doesnt like to be oc'd)

MOBO: MSI Z270 Gaming M3

GPU: Galax GTX 970 @ 1500Mhz  (with modified black EXOC bios)

Power Supply: Cougar CX700

SSD: Samsung 750 EVO 120GB

HDD: Segate Barrcuda 1TB

Case: Cougar Panzer Max

 

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