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HD7950 revised with reference HD7970 PCB club - Page 7

post #61 of 847
Thread Starter 
Quote:
Originally Posted by killerfromsky View Post

Do all the recent MSI TF3's come with the 7970 PCB or only the OC'ed variant?
And would you recommend it over the Sapph 950 version?
Some might find this interesting aswell:
http://www.xtremesystems.org/forums/showthread.php?282629-MSI-TwinFrozr-HD-7950-Experiments
Thanks in advance,
Thomas

Thanks for the contribution.

From what I have seen all of the recent MSI TF3's have been built with reference HD7970 PCB.

If you are are going to over clock on water I think the Sapphire 950 and MSI are very close to being equal.

If you are going to run with stock cooling the 950 has a better PCB heat sink design that will help keep vrms cooler for over clocking.

Both cards are very close to being equal but from what I have seen so far the 950mhz edition is a better over clocker.



TVM777 I don't understand what there is to be compared????


Gigabyte doesn't make a HD7950 with a reference HD7970 PCB design to my knowledge. Please post a link to the card you are posting about. Photos of PCB?
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post #62 of 847
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by anubis44 View Post

Just to mention, I flashed my Gigabyte Windforce 7950 with the Gigabyte 7970 reference bios (1000MHz core/1375MHz memory) over at techpowerup.com:
http://www.techpowerup.com/vgabios/index.php?page=1&architecture=ATI&manufacturer=&model=HD+7970&interface=PCI-E&memSize=3072
and it's running rock solid stable.
I know this is a tepid overclock compared to what the card is capable of, but I don't know of any tools for modding Southern Islands bioses yet. Just wanted to let anybody with the Gigabyte card know that it worked perfectly, gives a nice little boost up from the 900MHz core speed the Gigabyte 7950 ships with, and you don't need any O/C'ing software. The Gigabyte Windforce 7950s also come with a dual bios switch in case you're squeemish about flashing the card. I also tried the VTX3D bios (1050MHz core/1425MHz memory) and although it seemed to run fine, it did seem to hiccup a little bit from time to time. I suspect it was either the voltage was not quite high enough for the ram overclock, or my memory just won't got that high completely comfortably. The MSI 7970 bios f@cked up the display (funny characters in command prompt when you first turn it on) so I re-flashed back to the Gigabyte 7970 bios. I'm about to try the XFX 7970 bios, as it is also running at 1GHz core, but with the 1425MHz memory of the VTX3D bios, just to see if it's my memory that doesn't like 1425MHz at reasonable voltage.
On a side note, the Gigabyte Windforce seem like a great value, as they're aggressively priced and they have a very good cooler/fans. It also seems to run very quietly, even under load. It may be the best value in a 7950.
Quote:
Originally Posted by SonDa5 View Post

Thanks for the contribution.
From what I have seen all of the recent MSI TF3's have been built with reference HD7970 PCB.
If you are are going to over clock on water I think the Sapphire 950 and MSI are very close to being equal.
If you are going to run with stock cooling the 950 has a better PCB heat sink design that will help keep vrms cooler for over clocking.
Both cards are very close to being equal but from what I have seen so far the 950mhz edition is a better over clocker.
TVM777 I don't understand what there is to be compared????
Gigabyte doesn't make a HD7950 with a reference HD7970 PCB design to my knowledge. Please post a link to the card you are posting about. Photos of PCB?

Ehm, i was telling to make a list with wich cards can be updated with 7970 BIOS, as anubis wrote, he flashed his 7950 with 7970 BIOS without problems, so thats a starting point for persons who wants to update without much troubles, knowing that someone already did its a good way to follow him.

Example:

Ati 7950's that can be Flashed with 7970 Bios:
1.- Gigabyte Windforce 7950
2.- Sapphire HD7950 OC 950mhz Edition
3.- MSI TF3 HD7950 (newer versions)

and so on...
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post #63 of 847
Thread Starter 
Quote:
Originally Posted by tvm777 View Post

Warning: Spoiler! (Click to show)
Ehm, i was telling to make a list with wich cards can be updated with 7970 BIOS, as anubis wrote, he flashed his 7950 with 7970 BIOS without problems, so thats a starting point for persons who wants to update without much troubles, knowing that someone already did its a good way to follow him.
Example:
Ati 7950's that can be Flashed with 7970 Bios:
1.- Gigabyte Windforce 7950
2.- Sapphire HD7950 OC 950mhz Edition
3.- MSI TF3 HD7950 (newer versions)
and so on...

I've tried many different BIOS on my Sapphire HD7950 and I haven't had any luck flashing HD7970 BIOS to my card.

I have tried many HD7950 BIOS and none of them have worked as good as the BIOS my card has right now.

I think your idea is great and you can use this thread to keep track of info like but starting a separate thread would probably be more effective.

This thread doesn't get much traffic anyways.
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post #64 of 847
1. What would be the benefit of 7970 BIOS?

2. Is this 7950 any good, it uses 7970 PCB or im wrong?

3. its better then Vapor-X recent locked bs right, but Vapor-X has thermal pads, this does not correct?

4. Is the vrm design bad/good, inferior to newer Sapphire 950mhz versions?


I can get this card really cheap...








3. What is the realistic maximum average memory/core overclock and what is the maximum safe for 24/7 on memory/core as well?

Thanks!
Edited by psyside - 10/13/12 at 3:58am
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post #65 of 847
Thread Starter 
Psyside I'll help you with a part of question #2.

That is definitely not a reference HD7970 PCB.
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post #66 of 847
Well, thanks to some great used deals on hardware, this following week i will be a great position to contribute to this thread.
(also, thanks SonDa5 for the WB)

I current have this card on the way:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102991

and am currently running (for the moment) 2x of the 7950 MSI TF3's with 7970 PCB's, and in a week all 3 will be under MCW82's

So i should be able to provide results of these cards, and the results of flashing to the bios you linked in the OP.

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post #67 of 847
Thread Starter 
Quote:
Originally Posted by trancet View Post

Well, thanks to some great used deals on hardware, this following week i will be a great position to contribute to this thread.
(also, thanks SonDa5 for the WB)
I current have this card on the way:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102991
and am currently running (for the moment) 2x of the 7950 MSI TF3's with 7970 PCB's, and in a week all 3 will be under MCW82's
So i should be able to provide results of these cards, and the results of flashing to the bios you linked in the OP.
thumb.gif

The sapphire card has a decent PCB air heat sink but the MSI TF3 pcb air heat sinks looks a little lacking. The VRM heats up fast on the Sapphire card so be sure to provide some good air flow. Not sure how hot the VRMs get on the MSI TF3 cards.


Swiftech makes a good PCB heat sink solution for these cards as well.


http://www.swiftech.com/hd7900-hsf.aspx


Sounds like a monster build. Best wishes with it. cool.gif
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post #68 of 847
Quote:
Originally Posted by SonDa5 View Post

The sapphire card has a decent PCB air heat sink but the MSI TF3 pcb air heat sinks looks a little lacking. The VRM heats up fast on the Sapphire card so be sure to provide some good air flow. Not sure how hot the VRMs get on the MSI TF3 cards.
Swiftech makes a good PCB heat sink solution for these cards as well.
http://www.swiftech.com/hd7900-hsf.aspx
Sounds like a monster build. Best wishes with it. cool.gif

yeah, i figured that why you sold me the MCW82, VRM cooling.

Is there a software based way to see/monitor VRM temps ?
    
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post #69 of 847
Thread Starter 
Quote:
Originally Posted by trancet View Post

yeah, i figured that why you sold me the MCW82, VRM cooling.
Is there a software based way to see/monitor VRM temps ?

I sold it to you because I didn't need it but it worked great. The heatkiller block works better at cooling VRMs without having to have loud high speed fans on VRMS but the heat killer block doesn't flow water as good.

The MCW82 worked better for cooling only the GPU than my HeatKiller block does but the full cover block does a better job at cooling the VRM as well. So there are pros and cons to each block. I think for multiple card build the MCW82 block will work out better because it is not as restrictive on water flow but you have to be sure to get good air flow going between cards to cool the PCB heat sinks. I added a small aluminum heat sink to the top VRM that I think is used for the memory that helped lower temps on my Sapphire 950 mhz VRM #1 temps when I ran it with the Swiftech MCW82.

That block I sent you is in brand new condition. I'm looking forward to your results.


I use HWinfo64 to monitor VRMs but I think the latest version of GPU-Z does it as well. Good luck.
Edited by SonDa5 - 10/15/12 at 8:22pm
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post #70 of 847
Quote:
Originally Posted by SonDa5 View Post

I sold it to you because I didn't need it but it worked great. The heatkiller block works better at cooling VRMs without having to have loud high speed fans on VRMS but the heat killer block doesn't flow water as good.
The MCW82 worked better for cooling only the GPU than my HeatKiller block does but the full cover block does a better job at cooling the VRM as well. So there are pros and cons to each block. I think for multiple card build the MCW82 block will work out better because it is not as restrictive on water flow but you have to be sure to get good air flow going between cards to cool the PCB heat sinks. I added a small aluminum heat sink to the top VRM that I think is used for the memory that helped lower temps on my Sapphire 950 mhz VRM #1 temps when I ran it with the Swiftech MCW82.
That block I sent you is in brand new condition. I'm looking forward to your results.
I use HWinfo64 to monitor VRMs but I think the latest version of GPU-Z does it as well. Good luck.

Yeah, i understood what gpu only block setup downsides and upsides are, my previous Watercooled cards were the same way, and its the way i prefer.

GPU-Z does indeed show VRM temperature, thanks again


fittings arrive thursday, so this weekend i should have some results to show!

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