Difference in PCI-E cables?

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FukTheGaze

Prominent
Jul 18, 2017
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So I recently purchased another EVGA GTX 780 OC Edition so I could run SLI on my computer. Only problem is when I try to run both at the same time my computer wont power on.

I had checked both graphics cards in all slots that the MoBo has and they work fine except for with the PCI-E cables I had to buy to provide power to the new graphics card.

My question is if there is something wrong with the cables or if the fittings are bad and where I should go to purchase a new one? Or is there something else going on here that is preventing it from going?

Thanks for any feedback you guys can give me. And here are the specs for the pc:

CPU: Intel(R) Core™ i7-4820K Quad-Core 3.70 GHz 10MB Intel Smart Cache LGA2011 (All Venom OC Certified)

CS_FAN: Maximum 120MM Case Cooling Fans for your selected case [+9]

FAN: CoolIT ECO II-240 240mm Liquid Cooling Extreme Performance CPU Cooler [+27]

HDD: 2TB (2TBx1) SATA-III 6.0Gb/s 64MB Cache 7200RPM HDD (Single Drive)

IUSB: Built-in USB 2.0 PPorts

MEMORY: 16GB (4GBx4) DDR3/1866MHz Quad Channel Memory (ADATA XPG V2)

MOTHERBOARD: GIGABYTE X79-UP4 ATX w/ Ultra Durable 5, GblAN, 4 GEn3 PCIe x16, 2 PCIe x1, 1 PCI

NETWORK: Onboard Gigabit LAN Network

OS: Microsoft(R) Windows 8.1 (64-bit Edition)

POWERSUPPLY: * 850 Watts - Thermaltake Smart Series SP-850M 80 Plus Bronze Modular Power Supply [+69]
 
Solution
hang-the-9
You should not need to buy any extra cables for that power supply, it has 4 PCIe power connections. I am guessing the cables you got are not good or the wrong type. There are a few PCIe cables sold on ebay but they don't seem to be the original models. You may want to contact Thermaltake support.
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hang-the-9

hang-the-9

Titan
Mar 25, 2010
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You should not need to buy any extra cables for that power supply, it has 4 PCIe power connections. I am guessing the cables you got are not good or the wrong type. There are a few PCIe cables sold on ebay but they don't seem to be the original models. You may want to contact Thermaltake support.
 
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Solution
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evanrva

Prominent
Nov 26, 2017
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510
I just purchased 2 thermaltake smart m 850w. I swapped it out with my corsair 650w and left the old wires attached to all of the components. I really didn't think anything of it until i realized that I fried a dvd drive and a 750gb SSD when iI tried to power up. After hours of searching, it appears that thermaltake's wires are different than corsair's wires for the 6 pin to SATA, and because I left them, they provided power in the wrong way to my items and fried them.

When I physically look at the 6 pin it has connections missing in places that the corsair psu doesn't. So I was eventually able to find out why I had a problem. I used the wiring that came with thermaltakes psu and a new SSD and it worked fine.

However, now I am completely gun shy and I am very very hesitant to use splitters, adapters or anything of the like due to fear of frying a more expensive component.

I am still searching for an answer though. What I hope, is that the voltages were different between SATA ports on the PSU and that caused the issue, not the actual wiring arrangement itself.

If anyone has some more insight for us I would appreciate it.
 
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