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[Official] BitCoin LiteCoin DigitalCoin and all Crypto Currencies Club And General Information Thread - Page 33

post #321 of 21988
Quote:
Originally Posted by 0CALEFACTION0 View Post

Thanks for the tips guys! So most alt currencies have to go through BTC. :/

If you want fiat, yes.
post #322 of 21988
Why would I ever want government issued currency/tiny Italian cars?
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post #323 of 21988
if you are in turkey: fiats are cheap in any aspect so they are used all around the country plus they are turkish made so theres some savings too
if anywhere else: the 500 is cute biggrin.gif
 
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post #324 of 21988
Thread Starter 
Quote:
Originally Posted by barkinos98 View Post

if you are in turkey: fiats are cheap in any aspect so they are used all around the country plus they are turkish made so theres some savings too
if anywhere else: the 500 is cute biggrin.gif

lol fiat as in currency...I hate Fiats tongue.gif They own Ferrari though.
post #325 of 21988
Quote:
Originally Posted by ivanlabrie View Post

It's pretty hard to manage a pool...
Yup, a friend has a few alt coin pools, he's from England so I get a lot of latency when connecting... *.ahmedbodiwala.tk (replace * by arg, dgc, wdc, ltc, hyc, and a few more newer alts)
He told me it's a PITA and had lots of problems setting them up.
I would add the main exchanges if they're not there:

www.localbitcoins.com
www.campbx.com
www.btc-e.com
www.vircurex.com
www.mcxnow.com
www.cryptsy.com
www.bter.com

And add this: http://www.cryptocoincharts.info/
Useful for day trader wannabe's...like me xD

Done!
    
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post #326 of 21988
Thread Starter 
And something else I came up with:

I found a good way to find the best thread concurrency and core to mem speed ratio yesterday. Works for me, give it a try and see how it goes.

1- Run cgminer and hit G, then hit M to change memory clocks.
Increase it till cgminer crashes or you get hw. Then decrease it a notch till it runs fine.

2-Restart cgminer with the basic variables and --shaders (but NOT --thread-concurrency)

3-hit G, then E, and start tweaking core clock. (If you have a 7970 start by multiplying your mem speed by 0.6; for 7950s multiply by 0.7;for 6950s by 0.68) The result should be your starting core clock value.

4-Decrease core speed 5mhz at a time till hash rate increases noticeably. Write that value down, keep going down and maybe it will increase even more. You should find a sweetspot that way where hash rate is much higher despite going down in core speed. It's because that aligns with the mem timings/latency better and avoids bottlenecks.

5-After you find that value close cgminer. Look for a *.bin file with your TC value. Write that down and manually add it to your bat, removing --shaders while doing so.

6-You can experiment with thread-concurreny up in 256 intervals too, but you'll know have a great starting point.
post #327 of 21988
I am curious about other peoples hashing rates, my system is water cooled as I imagine a lot of peoples here are, and I have my clock speeds as follows:

voltage: 1258
core : 1225
mem 1075 (lowest possible, same as bitcoin.)

I do 1440 kh/s on scrypt, and around 1430 kh/s on SHA256, I see very little difference when I turn up my memory clocks to 1800 with scrypt mining besides plenty of extra heat, but reading this guide you'd think it should make a tremendous difference. Anyone explain this to me?

My other concern is that I always get pretty high vrm temps with mining, much much higher than even long battlefield 3 sessions. in games using max gpu with 1800 on my memory clock my VRM temps max are around 70. While bitcoin mining my top card in crossfire is 83 degrees.

With litecoins it can get much hotter, because I have a universal VGA waterblock on my 2 7970's, and heatsinks on the VRM/VRAM. What would you guys recommend so as not to shorten the life of the graphic cards as far as VRM temps?

I'm so glad to have bitcoin/litecoin mining talk available on overclock.net!
post #328 of 21988
Quote:
Originally Posted by Niexist View Post

I am curious about other peoples hashing rates, my system is water cooled as I imagine a lot of peoples here are, and I have my clock speeds as follows:

voltage: 1258
core : 1225
mem 1075 (lowest possible, same as bitcoin.)

I do 1440 kh/s on scrypt, and around 1430 kh/s on SHA256, I see very little difference when I turn up my memory clocks to 1800 with scrypt mining besides plenty of extra heat, but reading this guide you'd think it should make a tremendous difference. Anyone explain this to me?

My other concern is that I always get pretty high vrm temps with mining, much much higher than even long battlefield 3 sessions. in games using max gpu with 1800 on my memory clock my VRM temps max are around 70. While bitcoin mining my top card in crossfire is 83 degrees.

With litecoins it can get much hotter, because I have a universal VGA waterblock on my 2 7970's, and heatsinks on the VRM/VRAM. What would you guys recommend so as not to shorten the life of the graphic cards as far as VRM temps?

I'm so glad to have bitcoin/litecoin mining talk available on overclock.net!

Yer getting 720 kh/s per card? sounds pretty good to me.

If ur Vrm is getting hot put a high cfm fan infront of them should fix that.
    
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7950 w/ Alphacool block G.SKILL Trident X 2500mhz 2x4gb SanDisk Extreme 240gb sata III 6gbs x5 SwiftTech Apongee Drive II 
CoolingCoolingCoolingOS
Monsta 360 86mm thick rad X 4 MCP 35X Pump x2 400ML Frozen Q Fusion res x3 Windows 7 Ultimate 64 bit 
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CatLeap 2560x1440 + Acer hn274h bmiiid 120hz 3D Logitech G19 Corsair Ax1200 watts  Mountain Mods Ascension 
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post #329 of 21988
Thread Starter 
Quote:
Originally Posted by Niexist View Post

I am curious about other peoples hashing rates, my system is water cooled as I imagine a lot of peoples here are, and I have my clock speeds as follows:

voltage: 1258
core : 1225
mem 1075 (lowest possible, same as bitcoin.)

I do 1440 kh/s on scrypt, and around 1430 kh/s on SHA256, I see very little difference when I turn up my memory clocks to 1800 with scrypt mining besides plenty of extra heat, but reading this guide you'd think it should make a tremendous difference. Anyone explain this to me?

My other concern is that I always get pretty high vrm temps with mining, much much higher than even long battlefield 3 sessions. in games using max gpu with 1800 on my memory clock my VRM temps max are around 70. While bitcoin mining my top card in crossfire is 83 degrees.

With litecoins it can get much hotter, because I have a universal VGA waterblock on my 2 7970's, and heatsinks on the VRM/VRAM. What would you guys recommend so as not to shorten the life of the graphic cards as far as VRM temps?

I'm so glad to have bitcoin/litecoin mining talk available on overclock.net!

Easy, undervolt to 1.15v and try to find the max ram clock. I just posted a REALLY detailed guide on how to proceed with that.
Read it, try it... thumb.gif (go back one page)
post #330 of 21988
Ivanlabrie, I'm not sure if english is your first language or not, but in this and the other thread you redirected me, when both of them had questions that were specific to that thread, in the other thread I asked about pool shift times etc, stuff not covered at all in this thread, but either way, I'm pretty sure mining 1440 bitcoins with managable temps arounds 80 on the VRM, and 50 on the core.
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