Screen Isn't Showing up After New Motherboard

[Roxxormcownage]

@Roxx: I'm not understanding why you think it's the "efficiency of the cpu." I am a computer noob (at least I'd say) but I don't see what has changed so drastically that it could now be a power issue. (What exactly has changed just from swapping the motherboards/processor in terms of power?) Sorry if I seem a bit confused by all of this =/

swapping mobo/cpu and adding a GPU you mean....
Alot changes, different boards/CPUs have different requirements.

[ispano]

Yup, the 2500K has about a 30 Watt lower peak power draw than his previous CPU.

[Roxxormcownage]

Yup, the 2500K has about a 30 Watt lower peak power draw than his previous CPU.

Yup, the 2500K has about a 30 Watt lower peak power draw than his previous CPU.

But it still draws off a (1) 12v rail just as the other one...
point was?

Oh and no... depends on which board he had that 1090t on... it might have higher TDP of 125w but it would idle at 53w on older board anyways worked just fine staying below 100w. Besides, AMD CPUs ARE notorious on power; under load yes, but thats what they base their TDP off of, I have a 140w AMD at home thats probably never been near 140W even with 2 WoW running and crap getting DLd in the background. www.cpu-world.com but thats besides the point since it would need a whole 12v rail in both (intel and AMD) cases anyways. You can google that separately im tired of google for today.

[ispano]

Notice I said peak? My PII 940 has a 140W PEAK power draw.

[haxartus]

The GPU uses 210W under full load. The whole system will use possibly 350-400W under full load. But booting Windows doesn't load it on 100% at all.

[Roxxormcownage]

eh my bad im thinking TDP...
yeah I have same CPU too in my main wow rig for that matter.

[ispano]

Now the system below can draw freaky amounts of power on Full Load, and with me not working, I try to avoid doing that.

[Roxxormcownage]

The GPU uses 210W under full load. The whole system will use possibly 350-400W under full load. But booting Windows doesn't load it on 100% at all.

not sure why I bother replying but... here it goes...
straight from sapphire page on THIS card

http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1041&pid=1020&psn=&lid=1&leg=0#

75w on 6pin + 150w on 8pin = 225w required from 6+8 pin either way...
and thats BARE minimum, as ANANDTECH and Toms stated its actually 250w which means it would need 21a rails if they are right... and i figure they did their research.

anyways headed home

[haxartus]

I'm not sure why I'm responding to you either.
Stop reading idiot-proof reviews. The card uses 210-220W. From which 75W from the motherboard, which leaves 135W for the 2 power connetros, which are possibly each on a different 240W rail.

[ispano]

Haxartus is correct, I highly doubt the 6970 uses the same amount of juice as a 5970 or 6990.

[Tic Tacs]

Try plugging in your video card into old mobo. If it works then something is wrong with your new mobo.

edit: spell checker ftl

[Roxxormcownage]

I'm not sure why I'm responding to you either.
Stop reading idiot-proof reviews. The card uses 210-220W. From which 75W from the motherboard, which leaves 135W for the 2 power connetros, which are possibly each on a different 240W rail.

They're so idiot proof you forgot to realize Sapphire states they need 75w on one connector and 150w on other connector, and its already accounting for the power from the PCI-E slot.... You overlook that or was the article not idiot-proof enough?
Hence why I had been ignoring the comments about the draw from the PCI-E slot and why I suggested something like my old geforce 7200 which only goes off of PCI-E slot power...

And you're STILL claiming it uses far less power than what it states on SAPPHIRES page...
Theres no way im taking your word over theirs sorry. So unless THEY make a correction and Toms/Anandtech make corrections... yeah thats not likely so i'll leave it at that.

---------- Post added 2011-07-25 at 11:46 PM ----------

Haxartus is correct, I highly doubt the 6970 uses the same amount of juice as a 5970 or 6990.

Eh.. no, 6990 is at the VERY least 300w hence the two 8pin connectors (150w each).

[Zaios]

Still waiting on my buddy to get back to me. I don't even know what to make of the flaming about the hardware parts since I'm too noobish to understand it -.- anyone have any ideas on plugs I should possibly check in the meantime?

[ispano]

They're so idiot proof you forgot to realize Sapphire states they need 75w on one connector and 150w on other connector, and its already accounting for the power from the PCI-E slot.... You overlook that or was the article not idiot-proof enough?
Hence why I had been ignoring the comments about the draw from the PCI-E slot and why I suggested something like my old geforce 7200 which only goes off of PCI-E slot power...

And you're STILL claiming it uses far less power than what it states on SAPPHIRES page...
Theres no way im taking your word over theirs sorry. So unless THEY make a correction and Toms/Anandtech make corrections... yeah thats not likely so i'll leave it at that.

---------- Post added 2011-07-25 at 11:46 PM ----------



Eh.. no, 6990 is at the VERY least 300w hence the two 8pin connectors (150w each).

Think you mean 375 at LEAST, and no it doesn't pull that much. You don't measure a cards power draw by the connectors it uses. If a card uses 230W, it would have a 6 and an 8. Where 2 6 pins would top out at a total of 225 to stay within spec.

Basically if a card draws more than 75W it needs a PCIe connector. over 150W two connectors. Over 225W one needs to be an 8 pin, and over 300W, both need to be 8 pins. Having a 6 and an 8, doesn't mean it automatically draws max amps from all 3 sources, just that at some point it can go over the next tier down.

[Roxxormcownage]

Think you mean 375 at LEAST, and no it doesn't pull that much. You don't measure a cards power draw by the connectors it uses. If a card uses 230W, it would have a 6 and an 8. Where 2 6 pins would top out at a total of 225 to stay within spec.

Basically if a card draws more than 75W it needs a PCIe connector. over 150W two connectors. Over 225W one needs to be an 8 pin, and over 300W, both need to be 8 pins. Having a 6 and an 8, doesn't mean it automatically draws max amps from all 3 sources, just that at some point it can go over the next tier down.

Well... lets wait for him to plug in that other card and see how it does work.... then we can talk.
And yes I do realize its not going to draw max power off the get go.

[ispano]

.... You missed the point. A Video Card with say, an 6 pin and an 8 pin PCIe power connector. That card might have a MAX Wattage use of 230W OR 300W. Having those ocnnectors doesn't mean it WILL AUTOMATICALLY max out at 300W, just that at peak it goes over 225W

[Roxxormcownage]

.... You missed the point. A Video Card with say, an 6 pin and an 8 pin PCIe power connector. That card might have a MAX Wattage use of 230W OR 300W. Having those ocnnectors doesn't mean it WILL AUTOMATICALLY max out at 300W, just that at peak it goes over 225W

I know, thats why I said "And yes I do realize its not going to draw max power off the get go."

But for example, I have 2 older http://www.newegg.com/Product/Produc...82E16817152026, have one in an older PC and another for testing PCs at work... guess what, they both work but theres no way in hell they'll ever power http://www.newegg.com/Product/Produc...82E16814125338. Math adds up... but it just wont work, and all parts work in other machines just fine. I have a similar gtx470 in my main PC and had the same issue with those PSUs, they work like a charm for anything else though, and so does the GPU once i got better/stronger rails. There just wasn't enough juice going through the two measly rails (w\75w from board also obviously) for my GTX470 to start up. gtx 470 idles at 167 supposedly (http://www.hardocp.com/article/2010/...0_sli_review/7) so that math is right on that PSU, and the rails work but the GPU will not start.

[ispano]

I know, thats why I said "And yes I do realize its not going to draw max power off the get go."

Sigh, I bolded the part that flies in the face of you saying "I know". When I said that at peak it goes over 225W, I didn't mean it goes all the way up to 300W. I mean that it only goes over, ie it could peak out at 230W. The 6970 does not peak at 300W, it goes to around ~220W at most.

And that PSU is made the old way. With a massive amount of power on the 5V rail. Computers don't load up the 5V line like they used to.

[Roxxormcownage]

Sigh, I bolded the part that flies in the face of you saying "I know". When I said that at peak it goes over 225W, I didn't mean it goes all the way up to 300W. I mean that it only goes over, ie it could peak out at 230W. The 6970 does not peak at 300W, it goes to around ~220W at most.

And that PSU is made the old way. With a massive amount of power on the 5V rail. Computers don't load up the 5V line like they used to.

I'm going to ignore that last part and what you bolded, because that did not make sense at all. You just admit you read that I said I know yet you go ahead and
try to derail the topic by actually using the fact that I acknowledged that (what you said) beforehand.... and acting like im ignoring something? Gee i said i know... what you want a notarized document? lol

[Zaios]

So we tried my friend's gtx 260, and we're presented with the same exact problem ie black screen. =(