iMac with 6750M | Bitcointalksearch.org

mastergamer

newbie

Activity: 56

Merit: 0

Quote from: Jack of Diamonds on July 16, 2011, 10:24:05 AM

Quote from: DrHaribo on July 16, 2011, 03:45:09 AM

I don't see how it would be a problem as long as the temperature stays low.

Mobile VRM's aren't designed for 24/7 stress at 100% (or more if overclocked). The ventilation is designed expecting normal pauses every now and then.

Notebooks also need to be stable on 24/7 stress. THere are desktop machins which fail at permanent load and there are notebooks which fail.
My notebook with t7400 and Nvidia 9700GT is old, but it can stand 24/7 load too.
THe temps are fine, in contrast to the HD5850 in my mining ring, its stable too, but becomes very hot.

Stupidpal

member

Activity: 112

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Yeah I'll give it a rest every now and then.

Jack of Diamonds

sr. member

Activity: 252

Merit: 251

Quote from: DrHaribo on July 16, 2011, 03:45:09 AM

I don't see how it would be a problem as long as the temperature stays low.

Mobile VRM's aren't designed for 24/7 stress at 100% (or more if overclocked). The ventilation is designed expecting normal pauses every now and then.

In general it's a horrible idea trying to mine continuously with an iMac GPU.

DrHaribo

legendary

Activity: 2730

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Needs more jiggawatts

I don't see how it would be a problem as long as the temperature stays low.

Stupidpal

member

Activity: 112

Merit: 10

I'm waiting for the PCI Expansion Chassis now:

http://www.sonnettech.com/news/nab2011/

I could attach a good mining card and use that Grin

coblee

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Creator of Litecoin. Cryptocurrency enthusiast.

I don't know many people that mine with an iMac. And I have heard people burning out their cards. Don't know how hot their cards are though. I have an iMac with a 5750. I was getting 77 mhash/s. Once I heard the story of someone's iMac dying, I stopped mining on mine. Not worth it... so I just got a dedicated miner.

Stupidpal

member

Activity: 112

Merit: 10

The card will burn out even at 60 C? Shocked

I'm getting ~110 mhash/sec with this config.

coblee

donator

Activity: 1654

Merit: 1287

Creator of Litecoin. Cryptocurrency enthusiast.

From what I know it's a bad idea to mine with an iMac. And iMac does not have good ventilation and you can burn out your card that way. I've heard people doing that. Plus, you are likely just getting <100 Mhash/s, right? Not worth it.

Stupidpal

member

Activity: 112

Merit: 10

I mine with my iMac using poclbm in Windows. I've overclocked the core clock to 870 MHz and underclocked the memory to 300 MHz. I've also increased the ODD fan speed so that the GPU temp stays stable at around 60 C. It doesn't always run 24/7, I give it a rest now and then. I want to know, is this dangerous for the computer? As in will it's effects start showing soon? Huh

Topic: iMac with 6750M (Read 2575 times)