WTF!! 2 pins from ATX cable MELTED!

Sash · *Last edited by Sash; 09-28-2010 at 10:19.*

That is right! WTF is wrong here?
My PSU's ATX cable has 2 melted pins! The plastic has melted onto the motherboard's ATX connector pins! The PC had problems booting and the only way was to move around the ATX cable. Then i tough to myself... what is wrong here.... disconnected the cable and SURPRISE!
Now i have to RMA. Should i reset the CMOS and go to default settings so the OC will not void it?
What caused this? Fluctuations in electricity?

edit: the PC still works btw... at 100% the connection is still there but it is ****ed up!

RMA Update 1: So the techies from Sweden (bough it from Denmark) say that Corsair claims that the Gene 2 drew too much power from the PSU.
Asus claims that the PSU killed the motherboard because of bad surge protection...

All in all... i will get new products if they do not solve it

morbias · 09-13-2010, 16:39 | posts: 13,256 | Location: UK

Maybe something was drawing too much power

Sash · 09-13-2010, 16:48 | posts: 6,965

everyone warned me 650W may not be enough...
Makalu, help meee

Second and third on the top left.... what caused it??

I will RMA it, should i tell them to give me a TX 750 and i will pay the difference if they will want to change the PSU ?

Quote:

Originally Posted by morbias

Maybe something was drawing too much power

Anyone can answer this ? What drew? Videocards? I don't think so since they have separate PCI connectors... CPU? Not because it has it's own connector

Mega_Death · 09-13-2010, 17:20 | posts: 1,395 | Location: Michigan

I would definetly ask for an RMA. The larger question is why did it happen. That's alot of heat to melt that.

Maybe the crimp could have been bad? Recessed pin

Did it look like there was a way for the top of the conductors to short to the pins on either side?

Excessive current draw can do this but I seriously doubt it, nothing extreme with your system.

Makalu · 09-13-2010, 17:22 | posts: 4,197 | Location: Eugene, Oregon

Well it's the two 12V pins and I don't know for sure how your particular motherboard is wired but usually that connector supplies PCIe slot power and mobo fan header power. The pins are rated for ~8A each and your cards only draw about 2A each thru the slots...see here:

http://www.xbitlabs.com/articles/vid...x_6.html#sect0

so I guess either the fan headers were overloaded or the pins had a loose connection or a combination of the two.

Sash · 09-13-2010, 17:24 | posts: 6,965

I hope the guys at RMA will clean the pins from the plastic and be nice to me to give me a TX 750

Quote:

Originally Posted by Makalu

so I guess either the fan headers were overloaded or the pins had a loose connection or a combination of the two.

DUDE, actually there is one fan that has a melted solder between the cable and the header and the only way it is holding is trough a plastic tube..
OH but wait they are connected trough molex, not trough mobo

Makalu · 09-13-2010, 17:35 | posts: 4,197 | Location: Eugene, Oregon

well yeah it could have been a fault in a fan or within the mobo that caused a high current drain...plus when you have a connector that's loose already and you wiggle it to make contact it probably makes better contact at one point on the pin but also splays the pin out farther in the process and results in less surface area at the point of contact which is gonna greatly reduce the amount of current the pin can carry without heating up.

Sash · 09-13-2010, 17:36 | posts: 6,965

so you are telling me that a faulty fan ruined my ATX cable? nice
btw, i mentioned that the fan is actually hooked up to the molex cable, not on the mobo. and the 3 pin to molex header has that loosen solder...

Makalu · 09-13-2010, 17:58 | posts: 4,197 | Location: Eugene, Oregon

ah I didn't catch the edit...if it's on a molex and not the motherboard then naw it's not related to what happened to your 24-pin.

IPlayNaked · 09-13-2010, 18:03 | posts: 6,559

Well, if he's got all kinds of stuff melting itself to other stuff...Could it be a fault inside the PSU, or a power surge or something?

I mean, two melted things connected to the PSU...I know I wouldn't continue to use the PSU anymore, anyway,

allesclar · 09-13-2010, 18:10 | posts: 5,284 | Location: England

agree with IPlayNaked, its more than likely the psu, if over-current occurs, then the psu cuts out. otherwise we would have alot of nerds getting shocked

its a high current output that has caused the plastic to melt.

Sash · 09-13-2010, 18:43 | posts: 6,965

dam, how could a 80 gold certified PSU do that?
I looked closer at the mobo pins, seems that they are not covered in plastic, but the area surround it including the pins is brown
goddam it, i hope the mobo is ok...
still using my desktop, just got everything out of my case and preparing it this week for RMA
i hate this! I have to live without my rig for who knows how many weeks

klambre · 09-13-2010, 18:44 | posts: 1,724 | Location: safe place

Looks like 650W is not enough for a crossfire HD5850, overclocked i7 920 @ 3.6 GHZ, DDR3 and sound card.

The PSU was outing at limit, and the plastic chosen by Corsair for the ATX cable was not very appropriate either.

RMA it, its Corsair fault the melting plastic, and/or chose a PSU with some room.

Sash · 09-13-2010, 19:02 | posts: 6,965

Here are the mobo pins, is it goona be OK? it is still working...

IPlayNaked · 09-13-2010, 19:05 | posts: 6,559

I think it's pretty obvious to say that you shouldn't be using that PSU with it anymore.

Kinfa · 09-13-2010, 19:54 | posts: 396

I'm afraid if you connect new PSU to this motherboard's atx connector that same situation can happen again. These pins on mobo are looking burned.

PhatKat · 09-13-2010, 23:33 | posts: 3,787 | Location: In a trashcan

Quote:

Originally Posted by Sash

The PC had problems booting and the only way was to move around the ATX cable.

You said you had to wiggle the plug to run it, that means loose pins, which means small contact area which will overheat, as the current passes through too little material.

Sash · 09-13-2010, 23:37 | posts: 6,965

The +12V pins are the faulty ones... should i stop using the computer ?

sykozis · 09-13-2010, 23:42 | posts: 19,607 | Location: US East Coast

I would replace PSU and Mobo....have a nice day...

IPlayNaked · 09-13-2010, 23:42 | posts: 6,559

Quote:

Originally Posted by Sash

The +12V pins are the faulty ones... should i stop using the computer ?

I believe I said that twice now.

Sash · 09-13-2010, 23:44 | posts: 6,965

Yeah, i know that, saw your 2 posts, I am shocked and sad now... great...
Thanks for the input guys.

Quote:

Originally Posted by sykozis

have a nice day...

yeah, at least i am in good health.. yey

PhatKat · 09-14-2010, 00:03 | posts: 3,787 | Location: In a trashcan

You can tighten the pins, get a pick, and CAREFULLY bend the barrel-shaped pins(in the PSU plug) inward to add contact area.

Sash · 09-14-2010, 00:14 | posts: 6,965

neah, i am on laptop, gonna wait for computer shop to give me the package, not gonna touch it, so that it is in warranty. The shop is called DustinHome btw

On and let us do some rage... Why the hell Corsair allowed this PSU to go on sale when the ATX 2.2 specs say this:

3.1.5. Catastrophic Failure Protection
Should a component failure occur, the power supply should not exhibit any of the
following:
• Flame
• Excessive smoke
• Charred PCB
• Fused PCB conductor
• Startling noise
• Emission of molten material

Since this thread is currently on google's top 10 results for: atx cable, iI want to thank Corsair for ****ing up my rampage 2 gene atx connector with your ****ty plugs!

klambre · 09-14-2010, 00:49 | posts: 1,724 | Location: safe place

I´ll not be hard with corsair.

They made good PSUs, in fact very good PSUs cos all this mean that this PSU was overcharged but even so the PSU worked, but melting a plastic designed for support a charge more low.

I mean if the 650W PSU was from the other builder I bet the system was suffering from ramdom BSOD by the lack of power to the charge.

I recomend install a PSU with more room, 750W for example.

Laykun · 09-14-2010, 01:02 | posts: 3,210 | Location: New Zealand

650W corsair was more than enough for his setup.