![]() You could choose a AMD equivalent of course.Ĥ - Use a good MB (i use ASUS) with PCIe 3.0 support, there are a lot of that in the $200 range, remember you need at least 2 PCIe slots, 3 or even more slots MB is better but are more expensive and is dificult to handle 3 or 4 GPUs because the heat.ĥ - Use Windows 7/64 bits (linux cost 0 but all top crunchers uses windows for some reason), with a lot off fast memory (each GPU task takes +/- 100 mb just to run, at 3 WU per GPU a 2 x 690 runs 12 WU at a time + CPU tasks something like 2 GB just for them) so 4 GB is the minimum if you will use only for crunching, 8 gb if you thing anything else.Ħ - A good case with frontal cooling (the 690 have front and rear air exausts), there are a lot of cheap cases from cooler master or equivalent that have this feature. This is the heart of your system, and the first source of problems in the future because it´s internal components (capacitors and other stuff) degrades with the past of the time.ģ - A medium I5 could feed 2 x 690, if you could buy a top I7 is better, but take something in mind, the CPU power makes no big difference in the RAC of a 2 x 690 host (maybe a top 2 x Xeon makes difference but is to expensive unless you are thinking to build a big server). Example 1 690 uses 300W + 300W for the rest of the Host, = 600W + 30% = 800W, a 850 W is OK, for 2 x 690 nothing less than 1200W or your PSU will blow in less than a year. Don´t try to bargain in this item, buy a brand new keppler GPU, your will notice the difference in your power bill.Ģ - Buy the best quality PSU your money can buy, use the following roule, leave 30% or more spare power at least. If you choose Nvidia, buy the 690, If you can't buy 2 690 now, buy one and in the future buy the second one (don´t make the mistake to buy 2 680 or a cheaper board in the future if you want to expand the host you will run out of slots to do that), but remember this for the PSU. The Nvidia Gforce boards (Don´t thing to use Tesla on SETI is a waste of money) works ok and have a lot of support avaiable (most of the top crunchers uses nvidia so is easy to fix any problem). Nvidia ou ATI?, I can´t say anything about ATI because i use only Nvidia but the roule is the same, bigger is better. ![]() Keep this in mind if you whant to build a big Seti cruncher: (focus on 1 & 2)ġ - Buy the best GPU your money can buy, it worth every cent. I prefer having only one 690 in nice and great overall machine I could always get another 690 later when the price goes down. Microsoft Windows 7 Home Premium 64BIT.Īpprox $3000 with tax and shipping so within my budget and Western Digital Caviar Blue Hard Drive - 1TB. Corsair Vengeance Memory Kit - 8GB (2x 4GB). Corsair CAFA50 A50 Air Series Performance CPU Cooler. ASUS SABERTOOTH Z77 Intel Series 7 Motherboard. Cooler Master Silent Pro Gold 1200W Power Supply. So far my build would be something like that. Thanks again Juan ! I will keep you update on my project and most probablyĪsk for some more helps when I start to build my machine. Is VE2MVE and you can look up my profil on QRZ.COM I am 45 here and now working telecom field. To Brazil was a small trip Manaus - Belem 12 years ago. I use to be radio officer andĮlectronics engineer on board many cruise ships. I guess that havingīeautiful girls, nice weather, best football team and Anderson SilvaīTW I have been to brazil many times. ![]() ![]() I am not good at understanding world economy. Also when you lower the front cover on the Cosmos you also restrict the amount of air that the front fan can move through the case. Personally I'd go with the Cooler Master 942 HAF-X case as it will supply plenty of fresh air for multiple video cards and it has castors under it, the only things that the Cosmos has over the HAF-X are its over the top price and support for more hard drives. This is about the only part that I'd have a problem with as it isn't that good at keeping video cards that cool. Cooler Master Cosmos II Ultra Tower Case. ![]()
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