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GTAGOD

Corsair Ax 850 PSU almost Caught 馃敟

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Posted Original PosterOP

Hello everybody. I don't usually post. But I don't really know what to do in a situation like this,I've never really seen this before. I'm pretty upset though.

TLDR : my dad's 4790K 1080i system started black screening after 20 mins. Couldn't figure out problem. Change graphics cards. PSU started to smoke. Melted 8 pin port PSU?!聽

I got a call from my dad last week that the computer I built several years ago. Is acting up. So I go over there, He explains that the computer keeps crashing around 20 to 40 minute mark of gaming. It just black screens. 馃 After many many hours resetting settings,/changing components... I'm completely left baffled. The computer will randomly turn off after 20 to 40 minutes gaming and sometimes just rendering menu, and then it won't boot up again in a menu at all until shut off for a very long time but It would sometimes load windows even after that first or second black screen.聽

I brought it home changed graphics cards thinking that might have been it. I plugged in a 5700 XT and It was fine for a little while. Decide to put the 1080ti back into test one more time before giving up and tearing it down...

.set a valley benchmark. It lasted another 20 minutes and then a small bid of smoke came out of the eight-pin power port I shut the computer off. Blowing the smoke away I felt the PSU and it was pretty hot though the PSU was running with the fan on.

I'm not really quite sure what to do now. I never had this happen before. I'm really upset that my PSU is shot and my 1080 TI is acting up on top of that. I made sure all cables were seated properly every time I ever installed or moved a component.聽

Power Cables were changed, using a tripp light power protector aswell.

20200523_173845.jpg

20200523_175513.jpg

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damn, good thing that didn't happen when no one was around. any warranties left on the parts? if not, i would replace the psu(obviously), and solder a new port into the gpu, or find someone who can.

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How old is it? If it's a 4790k I assume it's an older system, and PSUs eventually tend to die, and it can be catastrophic.


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2 hours ago, GTAGOD said:

Melted 8 pin port PSU?!聽

That looks like12 pins, not 8.

Which AX850 is this?聽 The old Gold one or the new Platinum one?

If it's the Gold one, which would be about 10 years old, it's the cable that goes to the graphics card.聽 You were trying to run the 1080Ti off a single cable?

If it's the new Titanium one, it would be the cable that goes to the 24-pin.

I'd really like to hear more information.

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Posted Original PosterOP
1 hour ago, jonnyGURU said:

That looks like12 pins, not 8.

Which AX850 is this?聽 The old Gold one or the new Platinum one?

If it's the Gold one, which would be about 10 years old, it's the cable that goes to the graphics card.聽 You were trying to run the 1080Ti off a single cable?

If it's the new Titanium one, it would be the cable that goes to the 24-pin.

I'd really like to hear more information.

Yes you're completely right that is the 12 pin. I have ran quite a few GPUs off of one cable no problem. It is the gold, Didn't think that would ever be a issue ?

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3 minutes ago, GTAGOD said:

Yes you're completely right that is the 12 pin. I have ran quite a few GPUs off of one cable no problem. It is the gold, Didn't think that would ever be a issue ?

What was the original graphics card and what was the graphics card that was used right before the cable ignited?

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Posted Original PosterOP
3 hours ago, jonnyGURU said:

What was the original graphics card and what was the graphics card that was used right before the cable ignited?

5700xt then back to the 1080ti

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9 hours ago, GTAGOD said:

5700xt then back to the 1080ti

Pretty high power cards.

So maybe there was some corrosion built up on the pins from over the years and this caused so much resistance that the connector melted.

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Jesus how could this happen AXi is in top tier list....聽馃

Is your graphics card now okay?

Does it get current on those pins,does the LED indicator light up on it if it has one?

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11 minutes ago, frozensun said:

Jesus how could this happen AXi is in top tier list....聽馃

Is your graphics card now okay?

Does it get current on those pins,does the LED indicator light up on it if it has one?

FWIW:聽 This is the Seasonic made AX.聽 Not the Flextronics made AXi.

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18 minutes ago, Juular said:

Time to detier Corsair AX Platinum and Seasonic PRIME for a good measure too. /s

This is the old GOLD one if it has the 12-pin for the PCIe.

It's the old X-KM platform.

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7 minutes ago, jonnyGURU said:

This is the old GOLD one if it has the 12-pin for the PCIe.

It's the old X-KM platform.

Ah, okay time to detier Corsair AX Gold and all Seasonic X versions for a good measure too. /s2

Seriously tho, how this is possible on the PSU with actual 12-pins on the PSU side of 2x8-pin PCI-e cable ? Definitely looks like smth helped this to happen, but corrosion, how did it get there ?


Tag or quote me so i see your reply

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You mentioned you noticed smoke coming out of the 8-pin, but the first picture you attached shows聽two 6-pin connectors. Which one was it?

Also, how were you running a 1080Ti off of two 6-pins? I'm pretty sure that all 1080Ti models have at least an 8+6 config.

Edited by Mateyyy
nvm I'm blind

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33 minutes ago, Juular said:

聽/s

6 minutes ago, Juular said:

聽/s2

I did see the /s, by the way.聽 ;)

1 minute ago, Mateyyy said:

You mentioned you noticed smoke coming out of the 8-pin, but the first picture you attached shows聽two 6-pin connectors. Which one was it?

Also, how were you running a 1080Ti off of two 6-pins? I'm pretty sure that all 1080Ti models have at least an 8+6 config.

The PSU has a 12-pin on one side (what is shown in the picture) with two 6+2-pin connectors on the other.

7 minutes ago, Juular said:

but corrosion, how did it get there ?

We don't know where OP lives.聽 I used to be a PC tech in Florida and those guys that lived on boat houses would have PC parts corrode within a year.

I mean.. if humidity can cause a thermal pad to fail in an SF750 causing the PFC diode to short out to the heatsink in Singapore, Vietnam, etc. within the course of 4 months, then you know anything is possible.聽 ;)

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3 minutes ago, jonnyGURU said:

The PSU has a 12-pin on one side (what is shown in the picture) with two 6+2-pin connectors on the other.

Well that makes sense, considering there's also just a single lock in the middle of the connector, not two separate ones as if there were actually two聽6-pins. My bad.


Desktop:聽Intel Core i9-9900K | be quiet! Dark Rock Pro 4聽| ASUS聽Strix Z390-F聽| Corsair Vengeance LPX 32GB 16GB 3000MHz CL15聽| Intel 660p 1TB聽| Samsung 860 EVO 500GB |聽Western Digital Green 2TB | Corsair RM650x聽| EVGA GeForce RTX 2070 SUPER XC Ultra | Fractal Design Define R6 Blackout USB-C

Peripherals:Steelseries Rival 600 &聽Logitech MX Master 3聽| CM Storm Quickfire Ultimate (Cherry MX Blue)聽|聽Sennheiser Game One | BenQ BL2420PT

Laptop:Apple MacBook Pro 13" 2018聽-聽i5-8259U | 8GB RAM | 512GB SSD

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Posted Original PosterOP

I didn't notice any corrosion previously but it may have built up over time. I do live in Minnesota.

Curious what Corsair will do. I did submit a RMA. This shouldnt of happened even being out of a RMA situation.

I haven't got an email back yet. Any thoughts on what they will do.

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2 hours ago, GTAGOD said:

I didn't notice any corrosion previously but it may have built up over time. I do live in Minnesota.

Curious what Corsair will do. I did submit a RMA. This shouldnt of happened even being out of a RMA situation.

I haven't got an email back yet. Any thoughts on what they will do.

Nothing. It's out of warranty.

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