What do you guys think of this rig?

[DarkKnightNomeD]

the current rig i want to make/buy is a

motherboard MSI 890FXA-GD70

with amd athlon II x4 deneb 125w 3.0       i could drop it to the ones that are 90 W

a 60 $ heatsink/fan for CPU

and 4 Video cards ati radeon 5850's

2 sticks ram

i dont know how big of a Computer Case i need

also

how do you go about telling how Big of a Power Supply you need, im guessing of getting a 800 or a 950 W from corsair

since the 4 video cards will be pulling 155 to 165 W

[1713897257]

1713897257

[DarkKnightNomeD]

ok, pretty much, here is the "Wishlist" list from Newegg

what do you think? would it work?

https://secure.newegg.com/WishList/MySavedWishDetail.aspx?ID=17615766

[xenon481]

You are wasting far far too much money.

And that is a private link to the wishlist that other people can't see.

[w128]

Mining is new to me but, I'm pretty well-versed in hardware.

• You don't need decent CPU, much less an aftermarket heatsink.
• You don't need a high-end gaming motherboard.
• You don't need gigs of RAM.
• You would need a large case and a ton of airflow if you intend to cram 4x 5850 inside.
  

If you're going to build a mining machine at this (against most current advice) you'd likely be better served by building 2 machines, one for each pair of cards.

[DarkKnightNomeD]

You are wasting far far too much money.

And that is a private link to the wishlist that other people can't see.

i made it public, but for some reason i cant see it either

Mining is new to me but, I'm pretty well-versed in hardware.

• You don't need decent CPU, much less an aftermarket heatsink.
• You don't need a high-end gaming motherboard.
• You don't need gigs of RAM.
• You would need a large case and a ton of airflow if you intend to cram 4x 5850 inside.
  

If you're going to build a mining machine at this (against most current advice) you'd likely be better served by building 2 machines, one for each pair of cards.

im going to do a testrig 2 wishlist, ill post info in a minute

so what should i go with just a athlon II x4? quad core and a 15 to 30 dollar cpu/fan?

[xenon481]

Paying anything over $0.75 per MHash/s is a losing proposition and anything just under that isn't worth the risk.

For 1,200 MHash/s, you would need to try to spend less than $800 (preferably less than $750 to reduce risk).

Unfortunately, 4x 5850 alone costs over $700.

And as far as CPU goes, a Sempron is overkill.

[w128]

so what should i go with just a athlon II x4? quad core and a 15 to 30 dollar cpu/fan?

Retail CPUs ship with a heatsink and fan that will be plenty for a mining machine. You really only need to look at aftermarket HSF if you intend to overclock, minimize noise or you're buying an OEM CPU.

[DarkKnightNomeD]

im looking at Cases right now with atleast 8 slots, i found one thats 59 bux, but im only seeing 7 back slots

so a 9 slot right now is look about the 200 price range

well im trying to make the computer around or LESS THAN this guys......

http://www.bitcoinrigs.com/products/Enthusiast-Rig-2000.html


$1,399.00

    * Athlon II X2 250
    * 2 GB DDR3-1333 RAM
    * 500 GB Hard Drive
    * 700 watt power supply
    * Ubuntu 10.10
    * 2x ATI 6970 video cards
    * Mining output with 2x cards = 680 MH/s

i dont know wtf ubuntu is, i know what a free version of windows xp sp3 is....


so lets see what i can get for around 1400

------------------------------------

      

COOLER MASTER HAF X RC-942-KKN1 Black Steel/ Plastic ATX Full Tower Computer Case  $199.99
 
MSI 890FXA-GD70 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard     $194.99

   CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply    $159.99    

   AMD Athlon II X4 640 Propus 3.0GHz Socket AM3 95W Quad-Core Desktop Processor ADX640WFGMBOX   $99.99    

   G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL   $49.99         

   Arctic Silver 5 Thermal Compound    $11.98    

   XIGMATEK Apache EP-CD903 92mm Sleeve CPU Cooler supports AM2 AM3 939 754 and LGA 1156    $19.99
-------------
Shipping and Handling $711.92 not including shipping and handling
---------------
then 4  5850 video cards at 200 a piece 800 $+

i am still missing a hard drive, not sure if i need one if i usb sticks, dont really need a dvd rom

haha, dont even know what im doing really, just guessing all this out

finding a case that this motherboard will fit in is a B

[xenon481]

Again, you are wasting a TON of money for absolutely zero reason.

- Do not use that Motherboard
- Do not use that Processor
- Do not use that Memory

You can cut at least $250 just by cutting out that unnecessary stuff.

And a $200 case is overkill waste of money as well.

Even if you can cut half of your "overhead hardware" cost out (~$350), you are still looking at ~$1100-$1200 for a rig. That is nearly $1.00 per MHash/s....... That is 33% over the expected break even hardware outlay.

[error]

Historically, buying bitcoins directly has been more profitable than mining.

[w128]

I fooled around on Newegg for a bit trying to put together a build that hits the $0.75:1 Mhash standard set forth above. Currently, it just isn't feasible. With a few excellent combos it would be possible but, they are few and far between for mining-appropriate hardware. The best I could come up with, without delving into bottom-of-the-barrel, no-name, potential fire hazard hardware territory was about $0.85/0.90:1 Mhash.

Here's a thought, if you're going to insist on using all that fancy hardware, upgrade the CPU and call it a 50% gaming machine.

[xenon481]

I fooled around on Newegg for a bit trying to put together a build that hits the $0.75:1 Mhash standard set forth above. Currently, it just isn't feasible. With a few excellent combos it would be possible but, they are few and far between for mining-appropriate hardware. The best I could come up with, without delving into bottom-of-the-barrel, no-name, potential fire hazard hardware territory was about $0.85/0.90:1 Mhash.

Here's a thought, if you're going to insist on using all that fancy hardware, upgrade the CPU and call it a 50% gaming machine.

The $0.75 per MHash/s number makes some assumptions about increases in difficulty and increases in exchange rate, but if you expect either of those assumptions are wrong, then that means that you believe that it is currently more profitable to buy the BTC.

[DarkKnightNomeD]

I fooled around on Newegg for a bit trying to put together a build that hits the $0.75:1 Mhash standard set forth above. Currently, it just isn't feasible. With a few excellent combos it would be possible but, they are few and far between for mining-appropriate hardware. The best I could come up with, without delving into bottom-of-the-barrel, no-name, potential fire hazard hardware territory was about $0.85/0.90:1 Mhash.

Here's a thought, if you're going to insist on using all that fancy hardware, upgrade the CPU and call it a 50% gaming machine.

@w128  @xenon481  im just doing guess work right now

@xenon481  so going all out to save space at the house wont work maybe ill just have to deal with having twice the computer rigs maybe just stick to 3 pci slot motherboards hell maybe 2

[xenon481]

I fooled around on Newegg for a bit trying to put together a build that hits the $0.75:1 Mhash standard set forth above. Currently, it just isn't feasible. With a few excellent combos it would be possible but, they are few and far between for mining-appropriate hardware. The best I could come up with, without delving into bottom-of-the-barrel, no-name, potential fire hazard hardware territory was about $0.85/0.90:1 Mhash.

Here's a thought, if you're going to insist on using all that fancy hardware, upgrade the CPU and call it a 50% gaming machine.

Right now, the only way that buying hardware for mining beats the $0.75:1MHash/s mark is by only purchasing video cards and putting them into existing "overhead hardware" that you don't have to buy.

[DarkKnightNomeD]

Again, you are wasting a TON of money for absolutely zero reason.

- Do not use that Motherboard
- Do not use that Processor
- Do not use that Memory

You can cut at least $250 just by cutting out that unnecessary stuff.

And a $200 case is overkill waste of money as well.

Even if you can cut half of your "overhead hardware" cost out (~$350), you are still looking at ~$1100-$1200 for a rig. That is nearly $1.00 per MHash/s....... That is 33% over the expected break even hardware outlay.

ok i found ASROCK motherboard, dont know if there worth a dam, can hold 3 cards is 142 $

and there all pci express 2

umm should i be looking for pci express 2.0 slots or not?

maybe thats where im screwin up

AMD Sempron 140 Sargas 2.7GHz Socket AM3 45W Single-Core Processor SDX140HBGQBOX
 is like $37.99

the memory i still can buy, i can save 1 stick for another computer, or put it in mine, and have 6 gigs

ill go down from 200 computer case to 69 so 280 saved already

and i need what a 700 watt Power Supply? thats like 70 bux compared to the 150 dollar 850 w

[xenon481]

ok i found ASROCK motherboard, dont know if there worth a dam, can hold 3 cards is 142 $

and there all pci express 2

umm should i be looking for pci express 2.0 slots or not?

maybe thats where im screwin up

All you need are PCI Express x1 slots of any PCI Express revision. (may need to do some extenders and/or modding of the connectors) Mining does not require that the video cards be in x16 slots.

[DarkKnightNomeD]

so then http://www.newegg.com/Product/Product.aspx?Item=N82E16813157207

is just overkill again?

[Basiley]

if he had extra-cash and prefer to invest it into better appearance/reliability/ease of use &etc instead of horsepower - is okay, IMO
but if his goal maximize RoI dynamic, you may be right.

[xenon481]

if he had extra-cash and prefer to invest it into better appearance/reliability/ease of use &etc instead of horsepower - is okay, IMO
but if his goal maximize RoI dynamic, you may be right.

He was thinking about not even putting a hard drive in it, so that means that this rig isn't intended to be a general purpose machine.

[Basiley]

if he had extra-cash and prefer to invest it into better appearance/reliability/ease of use &etc instead of horsepower - is okay, IMO
but if his goal maximize RoI dynamic, you may be right.

He was thinking about not even putting a hard drive in it, so that means that this rig isn't intended to be a general purpose machine.

so ?
i knew guy, running PC by LiveCD offfice-card-DVD Linux distro for months. for "general purpose" usage.
thats strongly depend meaning of "general" for each of us and VERY different, IMO.