PSU

[KING_OF_SAND]

Now this may come across as a noob question but i would like an answer. Also this is sort of a GPU question. This is in regards to my 6990.

I have a BFG1000w PSU http://www.newegg.com/Product/Product.aspx?Item=N82E16817702021&Tpk=bfg%201000 and it is awesome. Currently i am using a 5870 lightning which uses dual 8pin to run. I am not very knowledgeable on PSUs, i just buy the more expensive one with enough watts from a reputable company. From my lack of knowledge, i know that an 8pin can deliver 150w of power while a 6pin is 75w of power. I am using two 6 to 8 pin adapters to power my 5870 lightning. The 6990 also uses dual 8pin.

My questions are:

what; if any problem is there when using adapters like this?

Will i be able to run my 6990 using two 6 to 8 pin adapters like i am using now?

Are there any hazards, to either me, PSU, GPU, or any other computer parts?

also my PSU is modular so i have a few connectors that i assume are 8pin. They are 6+2pin connectors. is this a true 8pin connector or is this the same as a 6 to 8 pin adapter?

 

[S_I_N]

those are 8pin ( the 6+2pin) use thos if possible as imho adapters trash up a case in no time

 

[KING_OF_SAND]

those are 8pin ( the 6+2pin) use thos if possible as imho adapters trash up a case in no time

Well the adapters are NZXT black braided. and they look really nice.

 

[S_I_N]

cool but I'd still use the 6+2 pinners as thats what they are for to either be 6 pin or 8 pin depending on ur needs.

 

[KING_OF_SAND]

cool but I'd still use the 6+2 pinners as thats what they are for to either be 6 pin or 8 pin depending on ur needs.

but what i do not understand is how my 5870 runs? it requires dual 8pins.

 

[S_I_N]

some psu manufactures made the pci-e connectors so that they can be used either 6 pin or 8 pin making it more universal. Hell my corsair has 4 6+2 pins no 8 (other than the mobo 8) it should deliver the proper wattage you need in either 6 pin or 8 pin format. Hope that helps ya better

if ya wanna be 100% I see on the specs for that psu that it has 3 8pins and 3 6 pins just use 2 of the 8 pins and you'll be fine.

 

[KING_OF_SAND]

some psu manufactures made the pci-e connectors so that they can be used either 6 pin or 8 pin making it more universal. Hell my corsair has 4 6+2 pins no 8 (other than the mobo 8) it should deliver the proper wattage you need in either 6 pin or 8 pin format. Hope that helps ya better

if ya wanna be 100% I see on the specs for that psu that it has 3 8pins and 3 6 pins just use 2 of the 8 pins and you'll be fine.

Yea that is what i was thinking. If it is a 6+2 and it is coming off the same cable and sense a 6+2 is = to a 8pin it only makes sense that it would deliver 150w. But what catches my attention is that i am thinking a 6pin hinders the 150w of max power in some way. Both my 8pins connected to my 5870 are coming off of ONE cable out of my PSU. Its one of the three cables that is not detachable, and the other end has a 6pin AND a 6+2 pin. so i just used 2 NZXT 6 to 8 pin converters. So it seems that that cable will only deliver 225w MAX. the 6990 needs 350w to run.

This is turning into one hell of a math problem

 

[S_I_N]

I beleive ur over thinking it bro lol. With that psu having a 948watt quad 12v rails with 36amps each ur gonna be ok overall. Now if ur running say a shite load of hdds and opyical drives you might have issues with wattage. but I doubt you will have any issues wiyh it at all. Or everybody would be in the same boat at your previously stated comment of each 8pin pushing 150w and 6 pushing 75w that would be equal among most if not all psu's. However the psu will supply what the card is requesting as far as it goes. Again I know you will be more than fine using a 1000watt psu for a single 6990 card. And prolly dual 6990's but thats another topic and a pure waste of $

and since3 it is such a big wattage hog I'd stay clear of the adapters and put in another 8pin moducable and be done with it

damn my typing blows tonight lmao and I aint been drinking

what brand of 6990 are ya getting???

 

[KING_OF_SAND]

I beleive ur over thinking it bro lol. With that psu having a 948watt quad 12v rails with 36amps each ur gonna be ok overall. Now if ur running say a shite load of hdds and opyical drives you might have issues with wattage. but I doubt you will have any issues wiyh it at all. Or everybody would be in the same boat at your previously stated comment of each 8pin pushing 150w and 6 pushing 75w that would be equal among most if not all psu's. However the psu will supply what the card is requesting as far as it goes. Again I know you will be more than fine using a 1000watt psu for a single 6990 card. And prolly dual 6990's but thats another topic and a pure waste of $

and since3 it is such a big wattage hog I'd stay clear of the adapters and put in another 8pin moducable and be done with it

i think i am too

. the 6990 is like a baby, i just want whats best for it

 

[S_I_N]

i think i am too

. the 6990 is like a baby, i just want whats best for it

ten get a GTX590 and be happier

ok watched real close as I typed that last reply and I guess my keyboard is jealous I got a new mouse lol and is acting up.

 

[KING_OF_SAND]

ten get a GTX590 and be happier

That aint gunna happen. my board is an AMD board anyways so no SLi, and a 590 is $100+ more, and the 6990 judging from DX11 benchmarks (3Dmark11) the 6990 is faster in DX11 which is pretty much all i am looking for. if i could do sli i would consider the 590 because i think physX is is AMAZING! Also i can go trifire in the future with a 6970.

i saw your edit

 

[S_I_N]

dont need to sli with dual gpu cards lol thats the beauty of them as I am AMD as well. I hope ur not saying I cant use a GTX590 are ya???

oh and also keep in mind how underclocked the GTX590's are if they are truely choice binned cores then I'd say with a mild to moderate oc (closer to stock 580 speeds) it'd blow the 6990's away

not to mention ahelluva lot quieter

 

[KING_OF_SAND]

dont need to sli with dual gpu cards lol thats the beauty of them as I am AMD as well. I hope ur not saying I cant use a GTX590 are ya???

I did not know that. I have tried sli on my board with GTX470s that i had a while back and it did not work. If you get a 590 more power to ya, but you will be my enemy MUAHAHA

also keep in mind AMD cards are notorious for being able to OC VERY high.

 

[S_I_N]

lol well I am quite happy with my GTX560Ti for now I have signed up for the step-up program with evga for a GTX580 but I'm not certain if I'll do it or not. They have sent me the e-mail saying its a go and for 226$ I can get one. But the draw back is I have to send my card first and I dont have a standby card for now. and my mobo doesnt have onboard video so I'd be down til I got it. Or use my daughters pos 775 rig I built for her lol she's 5 dont need daddys power yet.

 

[KING_OF_SAND]

lol well I am quite happy with my GTX560Ti for now I have signed up for the step-up program with evga for a GTX580 but I'm not certain if I'll do it or not. They have sent me the e-mail saying its a go and for 226$ I can get one. But the draw back is I have to send my card first and I dont have a standby card for now. and my mobo doesnt have onboard video so I'd be down til I got it. Or use my daughters pos 775 rig I built for her lol she's 5 dont need daddys power yet.

LOL

OR if you will be card less for less than 30 days you can always buy a 560ti at your local Frys Electronics or best buy then return it when you get your 580. thats what i did when i was waiting for my 5870.

 

[S_I_N]

no fry's here in San Antonio but there are BB's and I saw thier price on a 560Ti yesterday LMFAO $369But that is a thought lol

 

[KING_OF_SAND]

no fry's here in San Antonio but there are BB's and I saw thier price on a 560Ti yesterday LMFAO $369But that is a thought lol

well you will only be "RENTING" it for a few days

 

[S_I_N]

true but I'm a single parent of 2 small girls and well money dont grow on trees........normally lol if I do it I'll prolly buy an el-cheapo card on a forum to use then resell it after I'm done.

 

[Tortuga]

How long do they give ya on the step up program to buy it back at that price?

 

[S_I_N]

EVGA gives ya 90days to step up not a bad deal if ya ask me.there giving me my full purchase price off the 580

$279 and the 580 is 499 and 6 bucks for shipping.so 226 totla