CRAP XFX 7970 ~380 hash | Bitcointalksearch.org

ymeiner

newbie

Activity: 29

Merit: 0

Quote from: clicksmoney on May 10, 2013, 03:25:34 AM

Quote from: ymeiner on May 09, 2013, 12:48:31 PM

I am still trying to break the 675 but looking at the other posts about the 7970 im in good shape when it comes to BTC mining.

As in you have ASICs ordered?

Yes I have! haha! we have another month or so to enjoy our GPU miners before they officially become office summer weather makers. together with my sun lamp, I'm considering coming tomorrow with my bathing suit.

Oh! it's hot in here!

BadPenny

member

Activity: 70

Merit: 10

Quote from: Kinetic915 on May 07, 2013, 01:40:22 PM

Their new support site is the worst thing ive seen too.

I had not been there in the past month or so, but seeing this comment made me curious. What in the fuck did they do to that site?! Most of my registered shit no longer appears in my account.
If they don't fix that shit, then fuck that entire company. I won't buy anything from them again (and I have been a very pleased XFX customer up to this point.)

GuiltySpark343

member

Activity: 98

Merit: 10

Quote from: computerparts on May 10, 2013, 12:31:30 AM

http://www.newegg.com/Product/Product.aspx?Item=N82E16835186064

You gotta be careful. Some heatsinks only work with reference design cards, and you have an XFX that has dual DVI ports then most likely it is NOT reference.

clicksmoney

member

Activity: 103

Merit: 10

Quote from: ymeiner on May 09, 2013, 12:48:31 PM

I am still trying to break the 675 but looking at the other posts about the 7970 im in good shape when it comes to BTC mining.

As in you have ASICs ordered?

computerparts

sr. member

Activity: 378

Merit: 250

Quote from: Kinetic915 on May 09, 2013, 12:24:37 AM

@computerparts can you recommend a good 3rd party heatsink? after I RMA i might just go this direction.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835186064

gaboo08

newbie

Activity: 14

Merit: 0

I had issues with the hash rate as well. After 30mins of tweaking to and replacing the TIM, I was able to get ~650 mhash and a temp under 75 degrees.

pichadpi

newbie

Activity: 16

Merit: 0

Quote from: bowen151 on May 09, 2013, 08:17:29 AM

If your handy enough you can try flashing the bios to a gigabyte brand or other. Some people have reported successful increases in hashrate after doing this. Mostly XFX and mostly related to litecoins.

Ive seen threads where people are stuck at the 500Kh/s mark and after flashing they apparantly hit 700Kh/s+

EDIT: Full disclosure I have 3 XFX 7970's and I must admitt, they arent the greatest! I havent flashed them yet though! Bought as part of the same consignment, 1 out of the 3 cards was artifacting after installing, I immediately returned it to the merchant. Still awaiting word back about the replacement. They are quick as hell to respond when they are taking your money, when your looking for it back or something similar, it takes them an age to even email you.

I think i'll stick with the better brands from now on, XFX is most definitely on my shit-list

I've also seen a handful of others having success with higher hash rates by flashing the bios.
This link considers flashing the Sapphire card, but the steps remain the same regardless.
https://bitcointalksearch.org/topic/m.1980690

I haven't tried it yet myself, but plan on doing so in the next few days. Not sure if there will be any impact on your temps, though.

ymeiner

newbie

Activity: 29

Merit: 0

I just have to say that with all the problems with the hit sink (that I solved with a house fan facing the rig, instead of voiding the warranty), I get a stable 2GH/s FROM 3xXFX 7970 BE looking at other people's posts, that's not bad in ROI perspective. I payed $360 for each card and it was the best price for 7970 at the time.

I am still trying to break the 675 but looking at the other posts about the 7970 im in good shape when it comes to BTC mining.

Kinetic915

full member

Activity: 168

Merit: 100

Anyone wanna buy a 7970 xfx black? Tongue

Kinetic915

full member

Activity: 168

Merit: 100

Quote from: alexeft on May 09, 2013, 08:12:50 AM

Sorry but I will insist. Try some thermal paste first. Since you are willing to replace the heatsink, you will lose the warranty anyway.
So, it's just as well if you try thermal paste. It will cost very little anyway.

Sorry again for insisting so much.

Oh I definitely will. I'm only considering the heatsink but if I do i would do both. Right now I'm leaning toward rma and selling for a better card. Even for gaming something that doesn't artifical 3 out of 5 times is nice.

bowen151

hero member

Activity: 658

Merit: 500

Caveat Emptor

If your handy enough you can try flashing the bios to a gigabyte brand or other. Some people have reported successful increases in hashrate after doing this. Mostly XFX and mostly related to litecoins.

Ive seen threads where people are stuck at the 500Kh/s mark and after flashing they apparantly hit 700Kh/s+

EDIT: Full disclosure I have 3 XFX 7970's and I must admitt, they arent the greatest! I havent flashed them yet though! Bought as part of the same consignment, 1 out of the 3 cards was artifacting after installing, I immediately returned it to the merchant. Still awaiting word back about the replacement. They are quick as hell to respond when they are taking your money, when your looking for it back or something similar, it takes them an age to even email you.

I think i'll stick with the better brands from now on, XFX is most definitely on my shit-list

alexeft

legendary

Activity: 854

Merit: 1000

Sorry but I will insist. Try some thermal paste first. Since you are willing to replace the heatsink, you will lose the warranty anyway.
So, it's just as well if you try thermal paste. It will cost very little anyway.

Sorry again for insisting so much.

Kinetic915

full member

Activity: 168

Merit: 100

@computerparts can you recommend a good 3rd party heatsink? after I RMA i might just go this direction.

computerparts

sr. member

Activity: 378

Merit: 250

The problem with non reference XFX cards for years now has been that they cheap out on the heatsink. They use the crappiest heatsink out of all the other vendors. Just compare a Sapphire or MSI heatsink to an XFX.

alexeft

legendary

Activity: 854

Merit: 1000

The problem with those cards is the thermal paste. They use really shitty stuff.

If you used a top notch one, or just the average white stuff that electronics shops sell, the difference would be day and night.

I used noctua's nt-h1.

I've said this some times now and some people might think that I am advertising, but it is only the truth.

Mind though that if you go this route, you will lose the warranty. But, you are not going to need it anyway if the card gets adequate cooling.

GoldSeal

legendary

Activity: 1862

Merit: 1002

I've blown two of their (XFX) motherboards in spectacular fashion. Both were like an arc welder igniting inside the case and also blew the power supplies. Luckily this happened when I was present and didn't start a fire. I was able to RMA 1 to XFX a month before the warranty expired and the other ignited after the warranty period. oh well. Also blew at least 1 XFX video in the past and that one was never overclocked. These days, I only buy sapphire cards.

Kinetic915

full member

Activity: 168

Merit: 100

is 12.8 really best for mining? do you have a link or something?

Kinetic915

full member

Activity: 168

Merit: 100

Quote from: GuiltySpark343 on May 07, 2013, 08:32:24 PM

I have 3 XFX 7970 Blacks with a stock core 1000 and memory 1250. Using BFGMiner 3.0.2, Catalyst 13.1, Win7 x64 I get about 600 MH/s per card. I run them in a milk crate with x16 riser cables, and they hit about 70C with an ambient temp of 20C.

The only settings I use with BFGMiner is -I 13 --gpu-memclock 1250. I can't seem to get the memclock lower, system crashes. If I bump the core clock to 1050, also crashes. So I'm happy with what I have thus far.

Other users have also disassembled the heat sink and reapplied thermal paste, as some report shoddy jobs by XFX. Temps seem to have improved for those users afterwards, but be warned you will be voiding your warrant with XFX if you do this.

Good to hear. I will try those settings.

I am RMAing the card. This is actually the 3rd RMA of this particular card, 2 to newegg and 1 to XFX. The first two had heat issues and HORRIBLE coil whine. I had to wear earplugs when I was playing a game. I'm pretty dissatisfied with XFX definitely never buying from them again.

GuiltySpark343

member

Activity: 98

Merit: 10

I have 3 XFX 7970 Blacks with a stock core 1000 and memory 1250. Using BFGMiner 3.0.2, Catalyst 13.1, Win7 x64 I get about 600 MH/s per card. I run them in a milk crate with x16 riser cables, and they hit about 70C with an ambient temp of 20C.

The only settings I use with BFGMiner is -I 13 --gpu-memclock 1250. I can't seem to get the memclock lower, system crashes. If I bump the core clock to 1050, also crashes. So I'm happy with what I have thus far.

Other users have also disassembled the heat sink and reapplied thermal paste, as some report shoddy jobs by XFX. Temps seem to have improved for those users afterwards, but be warned you will be voiding your warrant with XFX if you do this.

Unacceptable

legendary

Activity: 2212

Merit: 1001

You are using the latest drivers,right??? DON'T!!!!!!!!!!!!!!!!!

12.8 is best for mining & still able to play games like BF3,at least for me & my 6 rigs(1-7970,2-6970's,2-6950's,1-5870 &,1 BFL FPGA).......................

http://www.guru3d.com/files_details/amd_catalyst_12_8_whql_64_bit.html

http://www.guru3d.com/files_details/amd_catalyst_12_8_whql_32_bit.html

Topic: CRAP XFX 7970 ~380 hash (Read 2545 times)