Anyone used a 8 PIN CPU to PCIe converter?

[adaseb]

Something such as shown.

I am thinking about getting a few of these. I got a few unused 8PIN CPU connectors which would be perfect if they werent used to power some miners. They say the 8 PIN CPU allows up to 300Watts of power.

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[Prelude]

I have, no reason not to. Just make sure you don't get a shit quality adapter made of 22AWG wire.

[sgk]

Something such as shown.

I am thinking about getting a few of these. I got a few unused 8PIN CPU connectors which would be perfect if they werent used to power some miners. They say the 8 PIN CPU allows up to 300Watts of power.

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I have used one of them to power my Sapphire HD7950. The GPU required two 6-PIN power connectors while my PSU had only one.

I used 4-PIN to 6-PIN Power converter (the one you've shown) to power the 2nd 6-PIN connector on GPU.

[dudex22]

I cut the end off the 8-pin cpu connect and wired it to a 6-pin PCIe connecter.been running an S3+ for 3 weeks now.

DON'T TRY TO WEASLE IT INTO THE PCIe SLOT!!!!!!! the polarity is reversed.............

I think there are adapters out there but IIRC the price of them seemed sillt at the time so I just grabbed the cutters and soldering iron.

[adaseb]

I cut the end off the 8-pin cpu connect and wired it to a 6-pin PCIe connecter.been running an S3+ for 3 weeks now.

DON'T TRY TO WEASLE IT INTO THE PCIe SLOT!!!!!!! the polarity is reversed.............

I think there are adapters out there but IIRC the price of them seemed sillt at the time so I just grabbed the cutters and soldering iron.

I don't think you can plug it in because there are square and round triangle shapes so it won't fit.

[sidehack]

With a few days' lead, I could build some of these of 16AWG wire in arbitrary lengths if it's something people are interested in.

[aclass]

we've used a huge lot of those for the GPUs
as long as the pins match, it's all OK

[klondike_bar]

I have, no reason not to. Just make sure you don't get a shit quality adapter made of 22AWG wire.

+1+1+1

I had one burst up in flames because the wires were marked as 18awg but on post-mortem inspection were clearly 20awg or 22awg, flimsy little things.

to be honest - if you plan to use this connector because your PSU doesnt have sufficient PCIe connectors, you either need to buy some splitters (i sell 18awg MFM PCIe), or invest in a better PSU. If you're short connectors, your PSU is likely cheaply built and 80+ Bronze at the very best.

[Desolator]

There's a point you're all completely missing.  CPU connectors for the motherboard are 4 pin or 8 pin.  PCI-E power connectors are for graphics card and are either 6 or 8 pin.  The 8 pin CPU and 8 pin GPU connectors have completely different wire arrangements and different shaped plastic housing.  They are not compatible with each other.

The other point is that most high end power supplies are single rail.  That means stealing power from the 12V CPU power connector with some wacky chinese adapter to put it into a PCI-E hookup is pointless.  All the power is coming from one 12V rail anyway.

I would simply buy the right power supply instead.

[klondike_bar]

There's a point you're all completely missing.  CPU connectors for the motherboard are 4 pin or 8 pin.  PCI-E power connectors are for graphics card and are either 6 or 8 pin.  The 8 pin CPU and 8 pin GPU connectors have completely different wire arrangements and different shaped plastic housing.  They are not compatible with each other.

typically these have 4x12V and 4xGND from the EPS that combine into a 6pin PCIe connector. problem is they are oftem made with thin wires

[sidehack]

There's a point you're all completely missing.  CPU connectors for the motherboard are 4 pin or 8 pin.  PCI-E power connectors are for graphics card and are either 6 or 8 pin.  The 8 pin CPU and 8 pin GPU connectors have completely different wire arrangements and different shaped plastic housing.  They are not compatible with each other.

The other point is that most high end power supplies are single rail.  That means stealing power from the 12V CPU power connector with some wacky chinese adapter to put it into a PCI-E hookup is pointless.  All the power is coming from one 12V rail anyway.

I would simply buy the right power supply instead.

I'm pretty sure everyone here understands the EPS and 8-pin PCIe are different. That's why the OP started this discussion by asking about an adapter.

If you already have the PSU, and it's capable of sourcing the required power, but lacks the required number of 6-pins, it makes more sense to use a $5 adapter than to buy a new $100 PSU. Sure you could splitter your existing wires into more 6-pins, but that puts excessive load on cabling while leaving other several-hundred-watt-rated 12V wires unused. And still requires buying splitters - which is to say, a different type of adapter. His question, and intended purpose, are fully legitimate.

Additionally, not all adapters are "wacky" or "chinese".