Asrock 970 Extreme4, 4x R9 280X, 4x Powered Risers

[BitWalker1]

Hi, does someone knows where I can find instructions to make powered risers out from not powered? (just by DIY
Here in Europe I had no luck to find a supplier for powered risers, only for normal (not powered) 1x and 16x.
But I guess it should not be too difficult to make a powered one out from a normal one...?

Cheers, BitWalker

[Silvano]

sorry for noob question, guys

i'm looking to build a rig,
so i decided to buy:

MB asrock 970 extreme 4
cpu sempron 145
4gb ram g. skill dual channel 1333 mhz
5 sapphire R9 280x Toxic
2 PSU aerocool strike-x 1100w (1 for 3 cards and other for 2 cards and mobo)

i would to run this rig with linux, (bamt maybe) but i never use it, if anyone have some tips about this issue thanks in advance.

the question:

asrok 970 have 3 pci-e 16x slots and 2 pci-e 1x solts. i have to use all slots.
i found risers obviusly in china, and it seems products are good, but all risers are unpowered.

now, what difference in khash/s terms can be happened with non powered riser cable versus powered?
it is better  to buy only powered? or non powered 16x and powered 1x?

why we need powered risers if cards are alredy powered directly by PSU?

tnx for reply

[Silvano]

sorry for noob question, guys

i'm looking to build a rig,
so i decided to buy:

MB asrock 970 extreme 4
cpu sempron 145
4gb ram g. skill dual channel 1333 mhz
5 sapphire R9 280x Toxic
2 PSU aerocool strike-x 1100w (1 for 3 cards and other for 2 cards and mobo)

i would to run this rig with linux, (bamt maybe) but i never use it, if anyone have some tips about this issue thanks in advance.

the question:

asrok 970 have 3 pci-e 16x slots and 2 pci-e 1x solts. i have to use all slots.
i found risers obviusly in china, and it seems products are good, but all risers are unpowered.

now, what difference in khash/s terms can be happened with non powered riser cable versus powered?
it is better  to buy only powered? or non powered 16x and powered 1x?

why we need powered risers if cards are alredy powered directly by PSU?

tnx for reply

i solved my question by myself, and i post for other guys have same dubt.

graphic cards like R9 280x toxic, have two 8pin  power bouts, and it supplies 150w each one.
the card, is tested at maxymum consumtion of about 370w but on 3d games and at max overclock,  think for mining the consumption will be lowest, and 300w directly supplies by PSU are more than adeguate. so i think unpowered risers are good for this rig.

edit for info:
6 pin bouts, supplies 75w each
8 pin bouts, supplies 150w each
molex supplies 75w
PCI-E 16x slot supplies 75w
PCI-E 1x solt supplies 75w  (not sure for that info, i'm trying to find better info).

[nnay_th]

Hi, does someone knows where I can find instructions to make powered risers out from not powered? (just by DIY
Here in Europe I had no luck to find a supplier for powered risers, only for normal (not powered) 1x and 16x.
But I guess it should not be too difficult to make a powered one out from a normal one...?

Cheers, BitWalker

Hi BitWalker,

Try this tutorial:

http://forum.feathercoin.com/index.php?topic=2193.0

Hope it helps.

Otherwise I live in UK and finding powered risers is relatively easy on eBay.

Cheers

[nnay_th]

sorry for noob question, guys

i'm looking to build a rig,
so i decided to buy:

MB asrock 970 extreme 4
cpu sempron 145
4gb ram g. skill dual channel 1333 mhz
5 sapphire R9 280x Toxic
2 PSU aerocool strike-x 1100w (1 for 3 cards and other for 2 cards and mobo)

i would to run this rig with linux, (bamt maybe) but i never use it, if anyone have some tips about this issue thanks in advance.

the question:

asrok 970 have 3 pci-e 16x slots and 2 pci-e 1x solts. i have to use all slots.
i found risers obviusly in china, and it seems products are good, but all risers are unpowered.

now, what difference in khash/s terms can be happened with non powered riser cable versus powered?
it is better  to buy only powered? or non powered 16x and powered 1x?

why we need powered risers if cards are alredy powered directly by PSU?

tnx for reply

i solved my question by myself, and i post for other guys have same dubt.

graphic cards like R9 280x toxic, have two 8pin  power bouts, and it supplies 150w each one.
the card, is tested at maxymum consumtion of about 370w but on 3d games and at max overclock,  think for mining the consumption will be lowest, and 300w directly supplies by PSU are more than adeguate. so i think unpowered risers are good for this rig.

edit for info:
6 pin bouts, supplies 75w each
8 pin bouts, supplies 150w each
molex supplies 75w
PCI-E 16x slot supplies 75w
PCI-E 1x solt supplies 75w  (not sure for that info, i'm trying to find better info).

Hi,

Wow, hold on a sec before you fry your motherboard! Even if you can get up to 300w via 8-pin, the graphics cards will still pull power from the PCIe slots.

From what I read, it is not recommended to use more that three unpowered risers. In your configuration, I would personally recommend at least 2 powered risers and three unpowered ones. But it doesn't hurt to have only powered ones.

Hope I saved you some trouble 

[Silvano]

sorry for noob question, guys

i'm looking to build a rig,
so i decided to buy:

MB asrock 970 extreme 4
cpu sempron 145
4gb ram g. skill dual channel 1333 mhz
5 sapphire R9 280x Toxic
2 PSU aerocool strike-x 1100w (1 for 3 cards and other for 2 cards and mobo)

i would to run this rig with linux, (bamt maybe) but i never use it, if anyone have some tips about this issue thanks in advance.

the question:

asrok 970 have 3 pci-e 16x slots and 2 pci-e 1x solts. i have to use all slots.
i found risers obviusly in china, and it seems products are good, but all risers are unpowered.

now, what difference in khash/s terms can be happened with non powered riser cable versus powered?
it is better  to buy only powered? or non powered 16x and powered 1x?

why we need powered risers if cards are alredy powered directly by PSU?

tnx for reply

i solved my question by myself, and i post for other guys have same dubt.

graphic cards like R9 280x toxic, have two 8pin  power bouts, and it supplies 150w each one.
the card, is tested at maxymum consumtion of about 370w but on 3d games and at max overclock,  think for mining the consumption will be lowest, and 300w directly supplies by PSU are more than adeguate. so i think unpowered risers are good for this rig.

edit for info:
6 pin bouts, supplies 75w each
8 pin bouts, supplies 150w each
molex supplies 75w
PCI-E 16x slot supplies 75w
PCI-E 1x solt supplies 75w  (not sure for that info, i'm trying to find better info).

Hi,

Wow, hold on a sec before you fry your motherboard! Even if you can get up to 300w via 8-pin, the graphics cards will still pull power from the PCIe slots.

From what I read, it is not recommended to use more that three unpowered risers. In your configuration, I would personally recommend at least 2 powered risers and three unpowered ones. But it doesn't hurt to have only powered ones.

Hope I saved you some trouble 

ty for advice

i'm going to order risers next tuesday, so, for make no mistake, better if i order powered risers.