Quick question

[Broheim]

I have a gtx670 sitting infront of me, it has a 6 pin and an 8 pin PCIe power connector but judging by the connectors supplied with the card only 11 pins are used. I only have 2x 6 pin power connectors from the PSU available (long story short, HP put a silly PSU in their z600 workstation).

will the 6 pin connector work in the 8 pin since the last two pins are only grounds on an 8 pin?

 

[ShintaiDK]

Yes, you can use 6 pins in 8 pins slots.

 

[Broheim]

Yes, you can use 6 pins in 8 pins slots.

yeah I finally found an article by toms about it, never had to think about it before because I've never worked with such a sucky PSU before.

but thanks.

 

[ShintaiDK]

yeah I finally found an article by toms about it, never had to think about it before because I've never worked with such a sucky PSU before.

but thanks.

PSUs aint sucky just because they dont have 8 pin PCIe connectors.

 

[PrincessFrosty]

The 8 pin are rated for 150W and the 6 pin rated for 75W, you're most likely to experience problems with the PSU if you hook up a 6 pin PCI-E cable and try and draw 150W through it using a converter, depends on how good your PSU is.

I was going to recommend to get a "Y" cable that adds 2x 6pin to an 8 pin because that's ideally how you should do it, but I can't find them online anywhere, I'm sure they exist, in fact they usually ship with cards that have an 8 pin connector.

As ShintaiDK says if the reference board only needs 2x6 pin you can probably just use a sing 6 pin to 8 pin connector and the PSU should be fine with a little extra power draw over the 6 pins.

 

[ShintaiDK]

Considering the reference GTX680 is 2x6pins. He will be fine.

 

[Broheim]

PSUs aint sucky just because they dont have 8 pin PCIe connectors.

it only has 1x 6 pin connector and I had to hunt for a y splitter for it. HP appearently make them themselves but I couldn't find the part anywhere. theoretically it should be able to supply enough power since the 75 watt limitation is only on the card and not the physical wire and PSU connector(which should be good for close to 200 watt).

anyways, it didn't work as I'm getting the "power down and connect PCIe power plugs" error message.

 

[ShintaiDK]

Didnt you say you had 2 6pin PCIe connectors from your PSU. And the card got a 6 and 8 pin slot?

I only have 2x 6 pin power connectors from the PSU available

Just plug them both in the card?

 

[Broheim]

Didnt you say you had 2 6pin PCIe connectors from your PSU. And the card got a 6 and 8 pin slot?

no I used a Y splitter to split the 6-pin from the PSU, I had to get creative because "put this gtx670 into this z600 workstation" was what I was told by my boss.

I guess I'll just steal the card for myself before my boss does and tell him it isn't gonna work.

 

[ShintaiDK]

Arh ok

 

[Broheim]

Just plug them both in the card?

I wasn't being precise when I was writing that (I was on the phone at the same time and reseting an employees pw as well). see above

 

[Broheim]

the sad thing is I have a seasonic platinum 860 sitting here right next to me, but it wont fit in the z600, I do have a z210 sitting here as well (the psu should fit) but the CPU is a bit on the weak side for the work this workstation does.

 

[PrincessFrosty]

it only has 1x 6 pin connector and I had to hunt for a y splitter for it. HP appearently make them themselves but I couldn't find the part anywhere. theoretically it should be able to supply enough power since the 75 watt limitation is only on the card and not the physical wire and PSU connector(which should be good for close to 200 watt).

anyways, it didn't work as I'm getting the "power down and connect PCIe power plugs" error message.

The cable and connectors aren't the issue here, it's what the PSU is safely rated for on each of its connectors/ports, the 6 pin cables/ports are typically rated for 75W, chances are that most PSUs will put out more power across these 6 pin connectors without much issue and the good PSU's will probably be able to deliver the full 150W on a 6 port.

However it depends what else you have hooked up to the PSU at the time, either way it represents risk as you're exceeding the specs for your PSU on that specific connector.

 

[Broheim]

The cable and connectors aren't the issue here, it's what the PSU is safely rated for on each of its connectors/ports, the 6 pin cables/ports are typically rated for 75W, chances are that most PSUs will put out more power across these 6 pin connectors without much issue and the good PSU's will probably be able to deliver the full 150W on a 6 port.

However it depends what else you have hooked up to the PSU at the time, either way it represents risk as you're exceeding the specs for your PSU on that specific connector.

i should be fine since HP themselves make Y splitters for this model (I'm told).

 

[PrincessFrosty]

If you want to be absolutely sure then you can probably find the detailed manufacturers specs and they will list what the maximum current/power is across each cable/port and total for each rail.

Basically exceed the rating at your own risk, many people do and have no problems but there's no gurantees.