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Title: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 03:13:26 PM Was planning on the MSI 790FX-GD70 for 4 card setup but it went out of stock almost everywhere. The 890FX-GD70 is too expensive.
What is everyone using for a 3 card setup, without using 1x extension cables - 3 slots on the board with proper spacing? Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: styrfoem on June 23, 2011, 03:21:27 PM see my signature... board works great, but not sure how easily available they are
Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 03:51:16 PM see my signature... board works great, but not sure how easily available they are newegg.com has it but no international shipping (Canada) newegg.ca nor any other Canadian site I can find has it (or almost any ASRock boards) Any ideas on a US site that might shit to Canada? Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: airdata on June 23, 2011, 04:45:19 PM i'll second the asrock extreme4. really nice board. I'm running 3x5830's on it.
Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 05:03:41 PM are there any good part search sites? pricewatch.com seems to suck now
Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: bigcoiner on June 23, 2011, 05:15:11 PM Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans.
Thanks, i'll second the asrock extreme4. really nice board. I'm running 3x5830's on it. Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 06:05:25 PM Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans. using 5830s? what brand? Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: Notrem on June 23, 2011, 06:15:04 PM Asus M4A79T Deluxe? 4X PCI-E 16 (dual 16x, quadra 8x) gr8 mobo
Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 07:11:39 PM Asus M4A79T Deluxe? 4X PCI-E 16 (dual 16x, quadra 8x) gr8 mobo This one is also "back ordered" or out of stock everywhere in canada Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: newguy05 on June 23, 2011, 07:34:35 PM I thought about going this route too, but the value is not there. A 3x slot mobo cost almost $100 more than a cheap 2x slot mobo, in addition the power supply cost at least $50 more. So you have a $150 overhead just to add 1 extra card, and heat with 3 card setup also becoming more of a problem.
I think you are far better off spending the extra money upgrade to a better 2x card setup with a cheap mobo. Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: styrfoem on June 23, 2011, 07:44:02 PM Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans. Thanks, im running the 5870 in the #1 slot which is on top so it runs a bit warmer but gets more air. 5870 @ 88C 5830 @ 76C 5830 @ 68C using MSI Afterburner i have custom set the fans to run faster than auto settings, i have also install 3 extra case fans... guess it prbly helps that the unit is sitting beside a central air vent pulling in A/C! :) Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 07:45:30 PM Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans. Thanks, im running the 5870 in the #1 slot which is on top so it runs a bit warmer but gets more air. 5870 @ 88C 5830 @ 76C 5830 @ 68C using MSI Afterburner i have custom set the fans to run faster than auto settings, i have also install 3 extra case fans... guess it prbly helps that the unit is sitting beside a central air vent pulling in A/C! :) 88c! I think you are pushing it with that temp Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: trueimage on June 23, 2011, 07:47:19 PM I thought about going this route too, but the value is not there. A 3x slot mobo cost almost $100 more than a cheap 2x slot mobo, in addition the power supply cost at least $50 more. So you have a $150 overhead just to add 1 extra card, and heat with 3 card setup also becoming more of a problem. I think you are far better off spending the extra money upgrade to a better 2x card setup with a cheap mobo. The mobo recommended in post 2 is $129 or something at newegg. 2 slot motherboards aren't $29. Also, then you need more power supplies. I'm already stepping from from a 4 card mb to a 3 card one, 2 cards is way too much over head cost in shelf space, psu, extra cpu, ram, usb stick... Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: styrfoem on June 23, 2011, 08:02:10 PM Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans. Thanks, im running the 5870 in the #1 slot which is on top so it runs a bit warmer but gets more air. 5870 @ 88C 5830 @ 76C 5830 @ 68C using MSI Afterburner i have custom set the fans to run faster than auto settings, i have also install 3 extra case fans... guess it prbly helps that the unit is sitting beside a central air vent pulling in A/C! :) 88c! I think you are pushing it with that temp stable for over a week, guess ill take my chances. thx Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: kcobra on June 23, 2011, 08:41:12 PM In my 3 card setup inside a Storm Sniper case I had one of my cards getting up into the high 80's, even with the big side fan on the Storm Sniper. Took the side off and pointed a desk fan directly at the cards. Dropped the temp down to around 80c.
Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: airdata on June 23, 2011, 09:11:38 PM if you have all 3 cards sandwiched on top of eachother they will get very hot. Put something in between the cards to space them out a little bit.
I got mine spaced a little bit and put 2 120mm fans on top of them and temps stay around 70. if they're not spaced, it's 90-95. Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: bigcoiner on June 23, 2011, 09:44:41 PM Running 6970s.
Just wondering how you are keeping the temperature on the cards at reasonable C. From looking at the board, if you are using GPUs that take 2 spaces, they will be right next to each other with very little space in between. I tried that and was getting temperatures in the 90Cs when overclocked and running at 85% on fans. using 5830s? what brand? Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: FreeJAC on June 26, 2011, 05:20:43 AM Asus M4A79T Deluxe? 4X PCI-E 16 (dual 16x, quadra 8x) gr8 mobo This one is also "back ordered" or out of stock everywhere in canada Limited quantities in Calgary at MemoryExpress http://www.memoryexpress.com/Products/PID-MX23676%28ME%29.aspx Title: Re: What a good AM3 board with 3 PCI-e slots? Post by: hennessy on June 27, 2011, 08:55:23 AM MSI 790FX-GD70 is a great board and if you find a dealer still having this in stock, it's probably the best deal you can make. I bought two of those for 90€ each (125$). Four PCI-E slots and running great with 4 cards eqipped.
MSI 890FXA-GD70 is the successor with some nice new features but not really needed for mining (USB 3.0, ESata, ...). This one even has five PCI-E slots but one is only usable with a riser or a single-slot card. If you are running just 3 cards, i still recommend a 4 or more-slot board since you can leave out one slot to let the cards breathe a little more. With three 6970s heat will be a major issue. |