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Each block is stacked on top of the previous one. Adding another block to the top makes all lower blocks more difficult to remove: there is more "weight" above each block. A transaction in a block 6 blocks deep (6 confirmations) will be very difficult to remove.
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cicada
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July 29, 2011, 11:46:59 PM |
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I wouldn't run without the fan - if you want silent you'll want a much larger passive heatsink. I've got Sempron 140s underclocked to 800mhz and undervolted, the CPU fan is basically inaudible. It's certainly no where near the noise a desk fan and 6 GPU fans whirring at 100% make
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Team Epic!All your bitcoin are belong to 19mScWkZxACv215AN1wosNNQ54pCQi3iB7
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mike678 (OP)
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July 29, 2011, 11:53:38 PM |
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I wouldn't run without the fan - if you want silent you'll want a much larger passive heatsink. I've got Sempron 140s underclocked to 800mhz and undervolted, the CPU fan is basically inaudible. It's certainly no where near the noise a desk fan and 6 GPU fans whirring at 100% make Yea the problem is its more money if I go for the bigger heatsinks I think I'm going to spend 3 dollars more and get this http://www.newegg.com/Product/Product.aspx?Item=N82E16835103075It looks like it's much easier to take the fan on or off so I can test if its possible without a fan. Another reason I don't want the fan is I want to make this as lean on electricity as possible.
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deslok
Sr. Member
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It's all about the game, and how you play it
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July 30, 2011, 12:06:04 AM |
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If you can measure the draw of that fan relative to the rest of the system you have some very sensitive equipment. i'm disspointed to see newegg doesn't have the 140 in stock anymore they used to have it boxed with the retail HSF for only a few dollars more. Edit: looks like we bought them all http://www.newegg.com/Product/Product.aspx?Item=N82E16819103698
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"If we don't hang together, by Heavens we shall hang separately." - Benjamin Franklin
If you found that funny or something i said useful i always appreciate spare change 1PczDQHfEj3dJgp6wN3CXPft1bGB23TzTM
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mike678 (OP)
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July 30, 2011, 12:10:20 AM |
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If you can measure the draw of that fan relative to the rest of the system you have some very sensitive equipment. i'm disspointed to see newegg doesn't have the 140 in stock anymore they used to have it boxed with the retail HSF for only a few dollars more. Edit: looks like we bought them all http://www.newegg.com/Product/Product.aspx?Item=N82E16819103698It's not that my system that I'm building is sensitive I'm just trying to penny pinch where possible. The cpu means jack shit when mining I'm trying to avoid all extra expenditures for it.
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bmgjet
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July 30, 2011, 12:57:10 AM |
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Or you could get water cooling setup. Im running 2 Antec KUHLER H2O 620. They were a bit noisy for the first 6 hours but now they dont make a sound since all the air bubbles are out of the pump.
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mike678 (OP)
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July 30, 2011, 01:05:20 AM |
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Or you could get water cooling setup. Im running 2 Antec KUHLER H2O 620. They were a bit noisy for the first 6 hours but now they dont make a sound since all the air bubbles are out of the pump.
I stated above I'm trying to penny pinch where possible lol This would hardly be penny pinching.
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MiningBuddy
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July 30, 2011, 01:35:07 AM |
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Buy a stock cooler, you don't need anything fancy for a mining rig. Noise from a cpu fan will also be the least of your worries with multiple gpus going full throttle.
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Supercrit
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July 30, 2011, 06:05:33 AM |
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You probably can't get comfortable temps with this tiny cooler, if you want silence you need a big heatpipe based cooler. Go find an coolermaster hyper 212+, that should work passively. It should sell for 20$~30$
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mike678 (OP)
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July 30, 2011, 02:32:25 PM |
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You probably can't get comfortable temps with this tiny cooler, if you want silence you need a big heatpipe based cooler. Go find an coolermaster hyper 212+, that should work passively. It should sell for 20$~30$
This is a Sempron not an i7 its not going to be generating nearly as much heat as those. At worst case the 15 dollar heatsink(including the fan) will work no problem. One of the reviews even said he ran prime95 and the highest temp his cpu got was 35c and he is running the 11 dollar heat sink.
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Supercrit
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July 30, 2011, 02:36:16 PM |
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You probably can't get comfortable temps with this tiny cooler, if you want silence you need a big heatpipe based cooler. Go find an coolermaster hyper 212+, that should work passively. It should sell for 20$~30$
This is a Sempron not an i7 its not going to be generating nearly as much heat as those. At worst case the 15 dollar heatsink(including the fan) will work no problem. One of the reviews even said he ran prime95 and the highest temp his cpu got was 35c and he is running the 11 dollar heat sink. You wanted to cool it without the fan, that puny little heatsink won't do it, even a low end graphics card will heat it up considerably. But of course it will work with the fan.
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mike678 (OP)
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July 30, 2011, 02:44:17 PM |
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I dunno I'll just have to test it when It comes in. I'm building a skeleton of a case so it's not like the heat will be trapped inside a closed computer case.
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Xephan
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July 30, 2011, 03:19:07 PM |
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The max TDP for this is only 45W. If you clock it down, since CPU power not really an issue, you should be able to get away with just the heatsink and fan off. The motherboard might scream about it so you should boot it with the fan on, change any applicable BIOS settings before unplugging the fan. As long as you have a heatsink on the cpu, with at least some air ventilation, the CPU should be fine if it settles at some reasonable temperature, core temps up to 70C should be fine. If you're not going to run the fan, removing it from the sink would probably help as well. If you want to get a bigger heatsink, you should look for one with wider gaps between the fins. Tighter fin spacing are better for forced air cooling.
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