8 Pin PCI-E connector

[Deleted member 3]

Well, where is the benefit to these extra grounds, when they are just jumped off of the other grounds, as per the photo of the adapter? And, considering that I haven't heard of anyone melting their 6pin connectors, I seriously doubt there is any real benefit to the 8pin, unless, of course, your psu manufacturer cheaped out on the wire gauges. If that's the case, you probably should've bought a better psu to begin with. My understanding of electronics is what lead me to deduce that this is a scam.

_You_ haven't heard of anyone, there we go. It can and does happen though. The same goes for aux mobo connectors, they melt as well.

Wires have a certain resistance, this is a property of the material they're made of and has nothing to do with the price. If you connect the wire the resistance of the wire will result in a certain current on the wire, this directly results in an increased temperature. If a lot of power is drawn via this wire the current because higher and the cable becomes warmer. At a certain point plastic melts, when this happens you'll be sad.
To fix this problem there are 3 things that can be done, the chosen solution (by the people who made the standard) was using additional wires. This is the cheapest and least confusing way.
Alternatively wires could be made thicker or out of a different material, however nobody will be able to see the difference between this new PSU and an old one which make these solutions a disaster waiting to happen.

You system will run with less wires, however in certain cases this can go wrong, therefor the standard adapted to powerhungry hardware. They did not do this to bully you, it is not a scam, it purely is a safety precaution which many countries demand. If the standard isn't safe, items can't be sold.

 

[Wile E]

_You_ haven't heard of anyone, there we go. It can and does happen though. The same goes for aux mobo connectors, they melt as well.

Wires have a certain resistance, this is a property of the material they're made of and has nothing to do with the price. If you connect the wire the resistance of the wire will result in a certain current on the wire, this directly results in an increased temperature. If a lot of power is drawn via this wire the current because higher and the cable becomes warmer. At a certain point plastic melts, when this happens you'll be sad.
To fix this problem there are 3 things that can be done, the chosen solution (by the people who made the standard) was using additional wires. This is the cheapest and least confusing way.
Alternatively wires could be made thicker or out of a different material, however nobody will be able to see the difference between this new PSU and an old one which make these solutions a disaster waiting to happen.

You system will run with less wires, however in certain cases this can go wrong, therefor the standard adapted to powerhungry hardware. They did not do this to bully you, it is not a scam, it purely is a safety precaution which many countries demand. If the standard isn't safe, items can't be sold.

I understand your argument perfectly, and the theory is sound, but in this case, the extra wires are unnecessary, regardless of reasoning. Especially if you look at many of the implementations of the 8pin on the market. The extra 2 negative are jumped from the other negatives on the lead. This still puts the same amount of strain on the original 3 negatives, thus zero real benefits, aside from unlocking Overdrive.

And besides, if this were actually necessary, why isn't there an additional 12V+ to ease the load on the positive leads? What good is having 5 grounds, if the same 3 12V+ still feed the power?

In short, I don't care why they say the 8pin is necessary, I do not believe them, and haven't seen anything personally that suggests that it is actually necessary.

If someone can show me where the 8pin has proven beneficial in actual use(aside from CCC's Overdrive), I'll change my mind.

 

[JC316]

Well hell, you can get a 6 pin to 8 pin adaper, which simply jumps the wires anyway, so it wouldn't make any difference. I think that the 8 pin is simply a gimmick.

 

[Deleted member 3]

9 out of 10 times (if not more) the extra wires are indeed not needed. But due to regulations the PSU's have to be safe 10 out of 10 times. Therefor the wires have to be there.

When the wires actually end up at the same cable the PSU manufacturer is not following the standard and it might fail under extreme load. Just ask Athlon MP users back in the days, they'll know all about burning cables.

Compare it to seatbelts, they aren't required either, until you crash. Trust me, they aren't just "gimmicks" just because you're a good driver.

 

[KennyT772]

Hey dan, can you replace the incorrect diagram with mine? I don't want anyone to accidentally fry their card by looking at the first picture they see.

 

[l3fty]

Well I'm going to have to say that all the digrams in this post are wrong. If Kenny were to flip sides then it would be corect. My basis for this statement is below. Which can be found in this thread. As you can see the 2 extra grounds are on the side closest to the 6 pin. Just thought I'd clarify that for anyone new around here.

This is a photo of my 8pin pcie2 cable that runs directly from my psu

 

[KennyT772]

My diagram is looking at the male plug, clip at the top. If you had paid attention to my diagram before flaming me you would have noticed. Also compare the keyings to my diagram those are also correct. With reference being the 3 12v lines you would clearly see that the two grounds are in the correct orientation.

 

[pt]

My diagram is looking at the male plug, clip at the top. If you had paid attention to my diagram before flaming me you would have noticed. Also compare the keyings to my diagram those are also correct. With reference being the 3 12v lines you would clearly see that the two grounds are in the correct orientation.

chill man
he wasn't flaming anyone

 

[KennyT772]

He was stating that my correct diagram is indeed wrong, based on another thread. He failed to read and understand the diagram and in turn attacked it. He is also a new user, registered today which doesn't make me want to give him any slack for his error.

 

[l3fty]

My coment wasn't meant to be a flame or an attack. IMHO Your diagram would be of more use to people if it looked like this.
With the plugs orientated the same way that they would be in the card.

Actually your digram was a little wrong.

No disrespect intended but just because I'm new here doesn't mean... Oh never mind.
I'll delete the images in a couple of hours.

 

[bassmasta]

wtf? those two diagrams are exactly the same. you've noticed this, right?

 

[l3fty]

wtf? those two diagrams are exactly the same. you've noticed this, right?

Actually there was a slight (clip position) difference between them, but after noticing another error. I felt compelled to switch them.