Chuckrock2004
1 Nickel

r9 380 power cable

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Heyo all,

I'm wanting to confirm before I hook up my new card, which power cable from the psu to use.  I have an Alienware Aurora R4 with an 850w psu.  It has  P14, P15, P16 and P17 six pin connectors, with a 2 pin connector wired to the P15 and P17 connectors.  The card I bought is an ASUS Strix Gaming R9 380 4GB with an 8 pin connector.  Can I use either P15 or P17 connectors and use the 2 pin connector that are attached to them?  Or can I use a 6 pin to 8 pin adapter?

Thank you,

Chuck

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Cass-Ole
4 Ruthenium

RE: r9 380 power cable

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Hey Chuck, glad to see you settled on a nice card. My R4 is no longer on the original power supply, I don't have access to cable # assignments, but I doubt we need them

8105.aurora-r4-10.jpg

R1-R4 875watt / 825w 12volt max power supply has two vid-cables, each on its own 12volt rail

- we need to engage both 12volt rails -

Stay with me here. Blu-wht has a primary 6pin & a 6+2 jumper, so does blu-ylw:

  • if a card needs a 6pin, use the primary 6pin
  • if a card needs an 8pin, use the primary 6pin & 'borrow' the 2pin from the jumper

7002_PTDC0003.JPG

in my A51, P18 is a primary 6p, P19 is the 6+2 jumper

  • I insert the P18 primary & 'borrow' the 2p off of P19 jumper
  • the card is now using both primary 6pins, both jumpers are laid to the side, unwanted

- this card is now operating off of the paths of least resistance: the primary 6pins -

In your instance, if P14 & P16 are the primary 6pins, insert them, then borrow 2pins off of P15 / P17 when & where needed. Got it?

1856.Capture.JPG

this HD 5970 needs 6p + 8p power

  • I've inserted the P23 primary 6p (left) & P20 6p; P20 'borrows' the P21 2p
  • in each instance the resistive jumpers are laid to the side
  • if HD 5970 needed dual 8pin power, P23 would be borrowing the 2p off of P24 jumper

... can you handle the truth of it Chuck ...

get her connected, post me a photo of your job well done

engage both of your 12volt rails & release the Kraken

Chuckrock2004
1 Nickel

RE: r9 380 power cable

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Tried both combos of F14 with 2 pin from F15 and F16 with 2 pin from F17.  Computer turns on and both fans spin on vid card, but never get anything on monitor.  Not even the alienware skull for BIOS.

Tried both of these.  The vid card has a DVI-I (which i used) and a DVI-0 and two HDMI slots.

The Kraken has destroyed Argos!

Chuck

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Cass-Ole
4 Ruthenium

RE: r9 380 power cable

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1512.Capture.JPG

this is a snip of an email notify I received but I do not see the message itself, it's in limbo

Fussy cards aren't my especiality, but I might try to turn off or on the PCI-E Gen 3 in the bios; if yours is of then turn it on, if it is on, turn it off, see if you get video output. I might try a different monitor &/or monitor cable, that goes for simply unplugging your monitor there for a minute then plug it back in. Report back

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Cass-Ole
4 Ruthenium

RE: r9 380 power cable

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3583.Capture - Copy.JPG

you weren't kidding, just a solo 8p

Per Newegg it is a 190watt card; my notes say R4 was sold with dual GTX 780s which are 250watt cards each, (what is the maximum hardware can Alienware Aurora R4 support?), so you're well within specs, meaning if one cable powered a 780 then one cable should power a 380

3681.s-l400.jpg

PlanB: dual 6p -to- solo 8p

search 'EVGA cable' on eBay, score a black n' for ~$5 - $8

dual 6p y-split cable has been used to good effect in Area-51 for HD 7990 / 295 X 2

Area-51 ALX, upgraded to AMD HD7990, random power offs?

Area 51 ALX v1 with R9 295x2


if all else fails Chuck, get a y-split, engage both 12v rails in that solo 8p

 ... re-release the Kraken ...

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Chuckrock2004
1 Nickel

RE: r9 380 power cable

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Heyo Cass-Ole!

Thanks again for all the input!  Not sure what happened with my post, but I put pics in it, so maybe it's waiting on admin.  Basically, the system seems to power up and run smoothly, the vid card fans spin, but I get nothing on my monitor.  I can't even get to the BIOS option.  I get no beeps to indicate an issue, just the smooth purr of fans.  My fins on the top go up and down like normal on start up.  I removed the coin battery on my motherboard for 5 min and tried again.  I jumpered the pins on the motherboard and tried again.  Always the same thing.  After reading one of your posts, I removed all four sticks of RAM and booted up and then the motherboard started beeping at me.  2 beeps.  So it's not a completely quiet motherboard.  I also unplugged the mouse, keyboard, speakers and ethernet cable and tried again.  I wish I had another monitor to try, but I do not.  I will try and see if my computer store has a dual six to eight pin adapter.  Perhaps another cable.  I would think, that even if the vid card is not powered correctly or even if it's toast, I should be able to get to BIOS?  I shall continue to look and try some things.  I'll keep you updated.

Thanks,

Chuck

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Chuckrock2004
1 Nickel

RE: r9 380 power cable

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*Update*

Tried every combo I could think of with power cables.  I have not tried the dual 6 pin to 8 pin.  My computer store did not have one, so I'll need to order one.  I swapped to an HDMI cable from the card to my monitor, but still no BIOS.  I replaced the CMOS battery with a new one.  I get no initial beep when I turn the computer on, I normally get the power up beep, and it won't send anything to my monitor.  The only thing I have not tried is loading BIOS externally.  But I'm thinking my motherboard needs to be replaced.  

Chuck

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Cass-Ole
4 Ruthenium

RE: r9 380 power cable

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I'm not so sure it needs replaced. Please place your original card back in, go back to square one. The new battery swap will have imparted all BIOS settings to revert back to 'default values', which may have led to this latest puzzle piece of not beeping. What I meant last night, was if you were to place your old card back in, then check your bios PCI-E GEN3 setting, change it, then place new 380 in there. Please make a companion post on AlienArena, General & TechSupport, lots of gamers / card swappers over there & I'm not a 'no video output guru' with a new card; I don't make card recommendations to people; half the reason is if it gets there & fails to produce video, I don't possess wizardry to get video from it, I'd feel bad for saying a card is ok if it gets there and flops

I agree with you, that in the scenario where a new hard drive is in place & a Windows DVD is inserted, you should get video, get a BIOS screen a least, in preparation to install Windows. Sometimes it is a monitor needs unplugged for a minute then plugged back in, a monitor needs replaced, a monitor cable change can help at times, I wish I knew. Try your old card, test the motherboard 1st

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Game7a1
4 Germanium

RE: r9 380 power cable

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If I may ask, does the computer boot with your old graphics card? And do you have the latest (or more up-to-date) BIOS?

You could probably use the old graphics card to make adjustments to the BIOS settings and see if anything works (and potentially update the BIOS if you haven't; flashing the BIOS to the latest version wouldn't hurt if you have it already).

Currently owned computers:
AW13 R2 | i7-6500U | GTX 960m 4 GB + GA (R9 285 2 GB / RX 480 8 GB) | 16 GB 1600 MHz | 1800p Touchscreen | 2 x 500 GB SATA M.2 | Graphics Amplifier Performance Analysis with 13 R1
Desktop | i7-3770 | GTX 980 4 GB | 16 GB 1600 MHz | 120 GB mSATA + 960 GB SSD + 2 TB HDD | 600w PSU
Formerly owned computers:
HP Pavilion 15-n280us (given away) | Apple Mac Mini 2012 (sold)  | m15x (damaged mobo) | 13 R1 (death by unknown) | m14xR2 (Tradied In)

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Chuckrock2004
1 Nickel

RE: r9 380 power cable

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*update*

Tried the old Radeon 6870 card, but to no avail.  That card's fan spins as well, but nothing at the monitor.  I've tried DVI and HDMI.  Prior to losing the system I had upgraded BIOS to A11, which was per the Dell site for my service tag.  Both cards give me the same results.  I did make a post on AlienArena yesterday, Cass-Ole.  I shall remain hopeful.

Thank you for your time,

Chuck

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