Bitcoin Forum

hi guys can any one please help me know what is the best set up for a msi 7950 twin razor i want to put 5 or more in each machine can anyone please help me out like what cable i need and what kind of mobo i need psu and the rest i repair computers for a living so im not a total newbie but never worked with these kind of set ups please need advice form advance users PLEASE HELP THANKS

hellotoyoutoojustreadtheforumsifyouwantsimpleanswers andputting somedots or otherpuctuatingmight make it more readable. Thanks for your input.

Fixed it a bit.

Keep an eye on difficulty. Then get:

mobo with 5x pci slots
psu to power 5x 7950 video cards
thumb drive + OS

Then keep an eye on difficulty.

THANKS GUYS AND sorry but i didn't know this was a spelling forum

I would also add more RAM than usually so you can switch to LTC in the future

thanks. well really that is what i want to mine litecoin

All forums are if you expect to be taken seriously.

Writing like you did in your opening post is equivalent to turning up to your sister's wedding piss drunk, knocking out the groom and banging your dick on the altar.

Not gonna lie. I laughed pretty hard. ;D

My sister didn't.  :-\

no problem just that English is not my main language all i know i have learned for my self and it seams like no one is going to help well thanks anyways

No worries, it's my third language.

cool no problem. Hey guys another question i bought all the things i need and build the miner but the question is ,why am i not seeing the kh/s on the pool ? i'm doing 1600 kh/s . But in the pool i only see 64kh/s .

Stale shares? And if you are using a pool like EMC, the default for estimating your hash rate is 30 minutes. That is, it makes an estimated guess depending on how many shares you've submitted in 30 minutes. If you would have been mining for 5 minutes with a 1GH/s unit, it would only display 167MH/s. 5 minutes after that (a total of 10 minutes), it would say 334MH/s.

The better way of checking would be to check how many shares and stale shares you've submitted in a given amount of time, and see if your account at that pool is also counting the same amount of shares and stale shares.

What pool are you using?

EDIT: Also, if English isn't your primary language you may want to look into using one of the boards in the "Local" category (if you already haven't). There is a board for Spanish, Chinese, German, Korean, Russian, and many more.

I'm using litecoinpool.org

Here it is and thanks in advance for helping me out .

https://i.imgur.com/69fmhNh.png




https://i.imgur.com/8wuBOpF.png

Before you do anything, get those temps under control! :o If those temps are reading correctly, you're going to burn the 1st and 3rd card out quickly. Dust them out, fix the airflow, and get some fans directly on them ASAP.

What cards are you using? I think 500KH/s seems a little high for one card unless you are using some state of the art card. You may have to leave them on for 10 minutes before litecoinpool reports proper speeds. However, it is still getting all of your shares. So you are being paid.

I dabbled in Litecoin mining a few months back. I thought I remember cgminer not displaying stuff correctly. Although I cannot say I am experienced in LTC mining yet. You may want to open a thread over in the Alt Coin board for more replies --> https://bitcointalk.org/index.php?board=67.0

But get those temps fixed ASAP.

Your settings are all messed up because all you're throwing is hardware errors

Please use the 7950 (high usage) defaults specified in GUIminer-scrypt
http://bitcointalk.org/index.php?topic=150331.0

Also please cool your cards better or turn down the voltages, you're going to kill them very quickly

that happened to me before as well, try to reduce the -I to the threshold that gives you no HW error at all, maybe it's a good idea to start with -I 13,  otherwise all cards are just generating useless hash and waste your electricity power.

BTW, try to lower your voltage, your cards are too hot.

thanks guys its going better now and i lowered the temp to 72

That's much better :)

thanks taco im using your settings at the start i did not  understand that you had to add a new machine for each card but still it is not giving me full speed in the pool im running 3 msi twin froz 7950 . When i set the settings high i get less kh/s im still unable to reach 500 on each one..

https://i.imgur.com/4naMPYq.png


Hey mufa23 thanks for helping me out...  now all i need is some pci raisers

you can actually use all your cards to mine under the same worker, you can but you don't have to separate them.

Hmmm, I thought 90c was sustainable but not ideal? As long as I get 18months out of it thats all I need...

ok no problem will do but i still cant get them to there full potential...can any one help please 

LOL

Not sure if you already built the rig with 5, but id suggest splitting to 2 rigs with 2-3 in each to avoid lots of headaches. :)

What is this, one can easily put 5-6 GPUs per rig and benefit nothing from having double the amount of mobos, cpus, rams, psus, etc.
What kind of headaches have you faced when building 5-6 GPU rigs?

Powered risers.

In my experience, running 4+ cards without powered risers will cause the main power connecter on the MB to burn up, literally charred.

Remember each of those GPUS has the potential to pull an additional 75 watts through the PCI-Express bus (This is in addition to the external PCI-E power connectors). At four cards you are looking at a potential of 300 watts being pulled through the MB from the main MB power connector and through the PCI-Express bus. This is on top of the requirements of the CPU and chip set.

The solution to this is using powered riser in addition to the normal risers you will be using. (I  hope one is not trying to run 4+ cards directly on the MB, you would never be able to dissipate the heat.)

I used run my rigs with 4 cards w/ a powered riser, but for some reason the powered risers seemed to start causing their own issues. It eventually became easier to just run three cards per rig and save a lot of headaches.


Just my experience and 2 cents...Take it or leave it.  :)