Triple Asus 7970 DC2T stability issues

[Jackwolfskins]

Hello, i want to report that 4 samples of this card here in Portugal show the same problem 110cº on vrm stock settings, our ambiant temperatures here in the summer are relativly high, iam afraid this will not even be possible to run it in the summer. Will it be qualified has a defect and will we be able to get replacement card ? Ive got one ordered and will arrive tomorow ill post my experience in the next 2 days.

[Vrwings]

Can we get a more complete description of the cooling setup?

[Area 66]

Can we get a more complete description of the cooling setup?

Do you have a photo, I don’t see how you can fit 3 x 3 slots GPU on this board without seriously affect the cooling

[bill_d]

Dear R3ZN0R,

Where else have you read about 'an overheating issue' because this is the first we have heard of this. RD is now testing your situation to see if they can replicate the issue. The VRMs are overspeced with a design to run cooler than the stock card.

Are you sure the lowest card is getting enough air? What temperature does it run at versus the other cards in your case? Have you tried swapping around the cards to see if it's just an issue with that slot or that particular card?

whole thread

http://hardforum.com/showthread.php?t=1670759&page=13

a lot of single cards too are having hot 100c+ vrm's

hope there is a fix newegg just shipped my two

[_]

Thanks for the link, I've sent it to RD and the product managers directly for them to read.

[DougOtt]

With three ASUS HD7970-DC2T cards, you must be inserting them in slots 1, 3 and 6 of the RIVE MOBO, so there would be less air getting to cards one and two as there are no free PCI-e slots between cards one and two, and cards two and three. I guess this isn't a problem for you though as you said it appears it was the third card, probably in slot 6, that was not working properly. You were very fortunate to get three of these cards when it seem that nobody can get one at this time! Hopefully you will solve the problem with ASUS support looking into it. I wonder why there is such a scarce supply of these cards as I believe there are many people who want to get one, including me! BUt I am concerned about them due to the issues identified on other sites.

[DougOtt]

And there is also this link that describes a probelm with the HD-7950 which has many people wondering about the HD7970-DC2T.:

http://www.overclock.net/t/1220328/b...i-fault-report

[madvoltz_420]

I have a single DC2T @ 1225/7000 (heavily over-volted) and I have never seen the temp go past 64c while playing BF3. At stock clocks the card never goes past 52c. VRM's stay at a constant 70-71c at the most. OP must have gotten a bad batch..

[bill_d]

is anyone using a DCUII at 2560x1600 with the the DVI-D duel link port

both of my DCUII are artifacting in 2d and 3d and system bios, each separate or together in cfx
but it is only very small sparkles and lines in some few colors on screen and not in others and if you move the window around artifacting moves with it

i have replaced PSU to a
CORSAIR Professional Series HX1050
http://www.newegg.com/Product/Produc...82E16817139034
and still does it
i have tried other dvi cables, cables and monitor are working fine with my HP LP3065 with a 4890 and my two 6970's

the only thing i can think of is the non-standard DVI-D port on these cards is not pushing full 2560x1600

or is there a bios or setting i should try on my R4E MB
or is there a new card bios that would fix this


everything is running at stock clocks
i ordered
http://www.newegg.com/Product/Produc...82E16815158198
to try to come from a DisplayPort

i hook them up to my tv at 1080p and they work fine at 1080p no artifacting at all

so it look like these cards just do not like 2560x1600 from the dvi-d anyway

and i still don't know why 60% of the artifacting goes away after it warms up some after it's been off for 1+ hours

update
the dvi-d ports on this thing just can not handle 2560x1600
i found that i could not shift to a resolution lower than 1080p
3dmark11 on performance would go to a black screen with flashes of what looked like running a 30" screen on a single link

this adapter

StarTech DisplayPort to DVI Dual Link Active Converter – USB Powered DP2DVID DisplayPort to DVI Interface
http://www.newegg.com/Product/Produc...82E16815158198
did fix it i'm now getting no artifacting and can switch to a lower resolution

[r3zn0r]

Seems my skyrim issues with freezing are skyrim related not vrm related so i apolagise about that. The hardocp thread is the main one i fiund plus the 7950 related issues. I sent my card in as an RMA. They said they have no problem with it and since i got it back ive had no major issues with it either so i dont know what the problem is or was.

The vrms on my top card hits over 100 in most cases with fans on auto.



there is a 200mm fan at bottom and 3 120mm fans at front with nothing blocking them.