6 pin connectors & fried motherboard

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Ultradreamz

Ultradreamz

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Nov 29, 2014
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**Not really sure what category to put this under, sorry if "Motherboards" isn't appropriate. There is no Power Supply section lol**
Recently my motherboard decided to die on me, and im trying to figure out why. Iv been told it could of been 3 different things:
1. I pushed down to hard when i installed my GTX 1060 (It died as soon as I put the card in, meaning once I put this card in it never worked again, even after uninstalling the card)
2. The 6 pin connector I used fried the motherboard, as it was really a 5 pin. (A 6 pin missing one of the pins.)
3. A PSU problem, which I don't think is likely since everything else still works by the looks of it. Not 100% sure though, as I currently have no other PSU's to test...

I am currently leaning towards #2. I am planning on getting a new Motherboard and CPU soon (A MSI 970 Gaming motherboard and an FX 8320). Im HOPING my GTX 1060 is still ok, but once again, I have no way to find out for sure currently...

Now, to my question, will I be ok to get a 2x Molex to 6 pin connector (With all 6 pins) with my GTX 1060. As I think the 6 pin connector I have on my PSU currently is what fried my Motherboard.

Any other comments/suggestions on this whole situation are appreciated.
The system I had during this issue:
CPU: AMD A10 5800k
PSU: 450w Rosewill
GPU: GTX 1060 Founders Edition
RAM: 8gb Curical ballistic sport
Motherboard: MSI A78M-E45
 
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Dustybin

Dustybin

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Feb 24, 2016
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Personally in this situation I would simply replace the PSU. I think the adage with electricity should always be... if in doubt throw it out. No one really likes spending money on their PSU because it's not very exciting and doesn't (most of the time) noticeably improve your fps but you're more than thankful for the unit that just does its job properly for 4 or 5 years.

The fact that the adapters exist means theoretically they should do what you want them to, however I always try to avoid using them if at all possible. Normally they're made to a budget of a few pence and you're trusting them to keep a PC costing hundreds of pounds/USD/ASD/euros/whatever working.

Just another point, if you're thinking of buying a new motherboard and CPU you will get better performance from an Skylake i3 than the FX CPU and also have an upgrade path. I know you might be drawn to being able to reuse your RAM but I would advise against it... especially if you do intend to keep the potentially dodgy 450w PSU.
 
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basroil

basroil

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Oct 19, 2013
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1) Pushing down on a card isn't a common way to kill a motherboard, you have to really press down in the wrong place for it to snap (and you will be able to see the damage on the underside)
2) All "6pin" PCIe power cables are actually 5pin by specification! While most power supplies support +12V on pin 2, the actual specification lists it as "not connected". There are only two ground pins after all.
3) It could be an under-performing PSU. Try getting a tier 1 unit to avoid future issues. The EVGA G2 550W is only $75 right now.


As for molex to PCIe, NEVER DO THAT! Basically if the PSU doesn't have the right connectors it will never be able to handle the graphics card. Considering that comment though, another possible issue is that you confused an EPS connector with a PCIe one and forcefully inserted it. That could definitely kill a motherboard.
 
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Ultradreamz

Ultradreamz

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Nov 29, 2014
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I would much rather get a FX 8320, as im not just a gamer. I manage game servers mainly. I would also get a new PSU, but money doesn't grow on trees... Im actually getting the FX 8320 from a friend of mine for free that he just had lying around. It just so happened to be the CPU I was looking for. Only reason im getting the MSI 970 Gaming is because its an amazing choice for this socket... and its cheap.

I would much rather get a $2 molex to 6 pin PCIe than a $100 power supply...
 
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Ultradreamz

Ultradreamz

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Nov 29, 2014
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I did not mistaken it for another connector, unless Rosewill misleadingly labeled it... As it says right on the header "PCIe" I was thinking this is what fried the motherboard as my friend said that it would have to pull more power through the PCIe lane without that 6th pin, but that doesn't really make sense...
 
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basroil

basroil

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Oct 19, 2013
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No, the card will take the same power regardless, the specification says 75W and 2 +12V pins, and the card uses those 75W (plus another 45-50W from mobo). Check the reviews here for more info on power use.
 
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Ultradreamz

Ultradreamz

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Nov 29, 2014
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The GTX 1060 manual says the minimum system requirement for the power supply is 400w, so me having a 450w power supply should be fine... And you said having the one pin missing from the 6 pin connector wouldn't effect it. So this just leads me to another dead end... Why is my motherboard all of a sudden dead...
 
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basroil

basroil

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Oct 19, 2013
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Not all power supplies are made the same you know, low end power supplies may not be able to handle a 100W GPU properly in the wrong conditions.

Go grab a EVGA G2 550, it's only $75 and will last you a decade (warranty for that long)
 
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Ultradreamz

Ultradreamz

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Nov 29, 2014
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Im still confused on how this would of fried my motherboard... Unless my Motherboard is fine and its just my PSU thats not working...
 
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D

darky26

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Jan 30, 2016
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I would lean towards a failed PSU, but better to test out the components on maybe a friends PC? first the PSU then the GPU and so on. do not blindly assume and purchase parts!!
 
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basroil

basroil

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Oct 19, 2013
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You should take some electrical engineering classes. Basically, the poor PSU design could pump too much or too little current at too high or low a voltage if it's quality is low. Undervoltage/ undercurrent usually just cause resets, the opposite could damage equipment. The better a PSU is, the closer to ideal voltage at all current loading/unloading conditions (up to max current) it will have.
 
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Ultradreamz

Ultradreamz

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Nov 29, 2014
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Just did a test with the PSU on an older dell i had lying around. Worked fine. I think we can officaly say that its the motherboard thats dead, not the PSU.
 
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