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[Official] 7870 Tahiti LE (XT) Owners Club - Page 8

post #71 of 5223
Just ordered 2 Powercolor Myst Ed. cards (thanks to this thread) and they should arrive in 2 days. I personally have never experienced CF before so I have quite a few concerns:
1. How am I supposed to wipe out Nvidia driver completely? Or do I just reinstall Windows?
2. Which driver is currently the most stable for AMD CF? This is my ultimate concern since I come from Nvidia and driver was never an issue for me.

Really can't wait to mess with some new toys. biggrin.gif
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post #72 of 5223
Xfx doesn't have a tahiti LE card. Im pretty sure that guy is 150 percent full of it...
post #73 of 5223
Double post
post #74 of 5223
Quote:
Originally Posted by invader1964 View Post

HI what bios version are you running I had the same issue with 031 installed 032 and all is well.

Quote:
Originally Posted by eBombzor View Post


http://www.techpowerup.com/vgabios/131721/VTX3D.HD7870.2048.121106.html
Try flashing your BIOS to .28

Looks like im running 031 bios, I've never flashed a GPU before any good links to show me how?

Edit: Found the flashing tutorial on here by KaRLiToS, flashed to 028 and bam runs perfect! Now to ramp this baby up and see what it can do biggrin.gif
Edited by imaurer269 - 3/25/13 at 8:38pm
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post #75 of 5223
Quote:
Originally Posted by sakulthefirst View Post

I have mistakenly bought a tahiti le card.

I bought a XFX 7870 DD and i didnt't know that XFX put this chip on the card at new revisions.

Firstly i was really pissed of the high standard voltages of the card. (0.950V IDLE, 1.15 Load).
I wanted to undervolt the gpu with afterburner but it had a voltage lock.

Than i had the idea to modify the bios by hand . And it worked.
Now i have 0.800 Volt in idle and 1.05 Volt under load. with a stock clock of 1100/1500.


Here is a GPUZ Pic of my card


I wanted to join the "OWNERS CLub" but it didn't work, cause i can't choose a xfx card biggrin.gif

Can you please post a valid GPU-Z link to your card.


I didn't know XFX had a LE HD7870 either.


How did you modify your BIOS by hand? Please share this.
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post #76 of 5223
Could you guys please share your ASIC scores and default voltage under load with stock settings?


Also I have yet to see full PCB exposed without absolutely no heat sinks on it. Please post some full PCB photos without any heat sinks to get a better look at the hard ware.


To me the PCB looks extremely cheap and my guess is that these Tahiti GPUS were on the way to the trash before somebody got greedy and decided to make the LE to make more money. I would rather seem a poor sample Tahiti GPU on a cheap PCB HD7870 LE card then that same gpu put on a much more expensive HD79XX card and have some body suffer buyers remorse from buying a poor performing HD79XX.


The memory default speed is 1500mhz and I haven't seen any speeds to 1700. Memory over clocking looks very bad on these cards.


Also I have yet to see a 1300mhz benchmark run.



These cards trash or keepers?


You guys regret buying them knowing that for about $40 more you are in HD7950 price range?
Edited by SonDa5 - 3/25/13 at 9:06pm
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post #77 of 5223
Thread Starter 

Quote:

Originally Posted by goldbranch View Post

Just ordered 2 Powercolor Myst Ed. cards (thanks to this thread) and they should arrive in 2 days. I personally have never experienced CF before so I have quite a few concerns:
1. How am I supposed to wipe out Nvidia driver completely? Or do I just reinstall Windows?
2. Which driver is currently the most stable for AMD CF? This is my ultimate concern since I come from Nvidia and driver was never an issue for me.

Really can't wait to mess with some new toys. biggrin.gif

http://www.overclock.net/t/1150443/how-to-remove-your-nvidia-gpu-drivers/0_100

Re-installing Windows would be the most effective solution.

 

13.1 is technically the most stable version but most of us use 13.3 Beta 3 b/c there are a lot of performance increases.

    
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post #78 of 5223
Quote:
Originally Posted by SonDa5 View Post

You guys regret buying them knowing that for about $40 more you are in HD7950 price range?

Actually, not counting the games, final price for my EZ was 240$ after taxes, shipping and rebate.

Best deal I've seen for a 7950, assuming same deal on shipping and rebates, would be close to 325$.

Only wicked case of buyer's frustration is that, less than 24 hours after placing my order and it amazingly being shipped out the same afternoon, the Myst edition magically appeared both in stock AND on sale 10$ cheaper. I originally intended to get the Myst, but it was out of stock and 10$ more expensive for a seemingly trivial shroud variance.

If i were to have buyers regret, it would be because had i waited to this week, I could have had a Pitcairn 7870 at 220$ after all in.
Though the performance would be lower, the acoustics of the card would be far better, and thus more tangibly relevant to my tastes.
Though, LOL, i did look into returning the EZ before I even opened the box, but the money lost from shipping, insurance, and shipping it back, on top of the price and costs of ordering a new card, made about as much sense to me as buying an aftermarket cooler and overclocking the tahiti le instead of just buying the 7950 in the first place for the same money.
post #79 of 5223
Quote:
Originally Posted by SonDa5 View Post

Could you guys please share your ASIC scores and default voltage under load with stock settings?


Also I have yet to see full PCB exposed without absolutely no heat sinks on it. Please post some full PCB photos without any heat sinks to get a better look at the hard ware.


To me the PCB looks extremely cheap and my guess is that these Tahiti GPUS were on the way to the trash before somebody got greedy and decided to make the LE to make more money. I would rather seem a poor sample Tahiti GPU on a cheap PCB HD7870 LE card then that same gpu put on a much more expensive HD79XX card and have some body suffer buyers remorse from buying a poor performing HD79XX.


The memory default speed is 1500mhz and I haven't seen any speeds to 1700. Memory over clocking looks very bad on these cards.


Also I have yet to see a 1300mhz benchmark run.



These cards trash or keepers?


You guys regret buying them knowing that for about $40 more you are in HD7950 price range?

I paid $240(210afterMIR) for mine or basically 5 bucks more than this 7870: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202025 I had originally planned on using the Sapphire until I got a customer who wanted it. It OC'd @ 1150/1400. I was 2nd guessing this purchase when I noticed my issues but had a hunch it was driver/bios. I just ran a 1250/1600 OC in MSI Kombustor on it after a simple bios flash. I'm grinning ear to ear tonight after worrying all day.

IMO if you have the money in the budget I'm sure the 7950 is a better card especially if you need the extra gig of memory but anyone who's budget is in the 7870 range should consider these

Edit: backed my OC down to 1200/1600 was seeing some artifacts in 3dmark11 at the 1250 speeds
Edited by imaurer269 - 3/25/13 at 10:15pm
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Thor
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post #80 of 5223
I need people's opinions ASAP! I ordered a Powercolor 7870(Tahiti LE) EZ edition 3 days ago. And now, I can buy the Myst for the same price! Should I go for the Myst and reject the package for EZ? Is the Myst cooler really good for single card solution? Thanks!
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