Updated Pics Finally Finished Rampage IV Extreme+ 3930K rebuild with 4-way SLI GTX580

[bobbth]

Originally Posted by leithals

"If one drive has, say, a 1 in 1,000 chance of failure, then two drives have a 2 in 1,000 chance."

Whilst it doesn't really matter in this example, probability doesn't scale linearly.

This is why, if I have 2000 drives with 1/1000 chance of failing, the probability of one or more drives failing per unit of time* is not 2/1 which as we know is impossible (it would be large something along the lines of 0.995).

*will depend on the unit of time of the original probability, it would be something in the order of a few years.

It is quite deceptive that we represent probability as a decimal/fraction, it become too easy to assume that we can then just add them/multiply them which is *not* accurate.

[leithals]

Originally Posted by bobbth

Whilst it doesn't really matter in this example, probability doesn't scale linearly.

This is why, if I have 2000 drives with 1/1000 chance of failing, the probability of one or more drives failing per unit of time* is not 2/1 which as we know is impossible (it would be large something along the lines of 0.995).

*will depend on the unit of time of the original probability, it would be something in the order of a few years.

It is quite deceptive that we represent probability as a decimal/fraction, it become too easy to assume that we can then just add them/multiply them which is *not* accurate.

Jeez if I had known I was going to be quoted over and over again I would have made my argument a bit more mathmatic (or some shit). I was purely trying to say that put drives in RAID 0 increases the likelyhood of failure, doesn't mean it will fail. Now stop f'ing quoting me and look it up yourself. Oh and by the this was my actual answer to the 2000 drive question. Once again don't quote me, it makes an assumption of 5% failure rate. PM me if you want to continue I feel sorry I even started trying to explain this shit to teenagers (another assumption).

Originally Posted by leithals

Of course you are actually right. By my calculation it's 99.999999999999999999994708177252% likely to fail at any given time (probably rounded to whatever my calculator rounded to too). That's assuming a failure rate of 5% (and that 5% is purely a guess).

Can we please now continue??? Apologise to Phatboy

[bobbth]

Originally Posted by leithals

Jeez if I had known I was going to be quoted over and over again I would have made my argument a bit more mathmatic (or some shit). I was purely trying to say that put drives in RAID 0 increases the likelyhood of failure, doesn't mean it will fail. Now stop f'ing quoting me and look it up yourself. Oh and by the this was my actual answer to the 2000 drive question. Once again don't quote me, it makes an assumption of 5% failure rate. PM me if you want to continue I feel sorry I even started trying to explain this shit to teenagers (another assumption).

you still got your point across, just dont use exact numbers next time

[Creekin]

Originally Posted by leithals

I feel sorry I even started trying to explain this shit to teenagers (another assumption).

butthurt much?

[mpayne]

hay Phatboy i remember in your old thread you made all custom cables was wondering were did you buy the wire from

[Phatboy69]

australia.rs-online.com

Model numbers below.

176-9801 1 Wire,equipment,hook up,UL1007,30.5m,24 awg,red
1 Reel of 30 Metre(s) $22.20 $22.20
176-9794 1 Wire,equipment,hook up,UL1007,30.5m,24 awg,black
1 Reel of 30 Metre(s) $22.20 $22.20
332-001 1 Wire,equipment,hook up,UL1007,30.5m,24 awg,yellow
1 Reel of 30 Metre(s) $18.10 $18.10
176-9823 1 Wire,equipment,hook up,UL1007,30.5m,24 awg,blue
1 Reel of 30 Metre(s) $22.20 $22.20
333-436 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,yellow
1 Reel of 30 Metre(s) $28.00 $28.00
331-749 1 Wire,equipment,hook up,UL1007,30.5m,18 awg,black
1 Reel of 30 Metre(s) $26.10 $26.10
331-755 1 Wire,equipment,hook up,UL1007,30.5m,18 awg,red
1 Reel of 30 Metre(s) $27.80 $27.80
331-828 1 Wire,equipment,hook up,UL1007,30.5m,18 awg,violet
1 Reel of 30 Metre(s) $26.10 $26.10
331-777 1 Wire,equipment,hook up,UL1007,30.5m,18 awg,yellow
1 Reel of 30 Metre(s) $26.10 $26.10
333-420 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,green
1 Reel of 30 Metre(s) $32.90 $32.90
333-385 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,white
1 Reel of 30 Metre(s) $32.90 $32.90
333-470 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,grey
1 Reel of 30 Metre(s) $32.90 $32.90
333-414 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,red
1 Reel of 30 Metre(s) $32.90 $32.90
333-408 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,black
1 Reel of 30 Metre(s) $32.90 $32.90
333-464 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,orange
1 Reel of 30 Metre(s) $28.00 $28.00
333-442 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,blue
1 Reel of 30 Metre(s) $35.00 $35.00
333-458 1 Wire,equipment,hook up,UL1007,30.5m,16 awg,brown
1 Reel of 30 Metre(s) $32.90 $32.90

[Phatboy69]

Bit of a cross post I know but since its my build thread I guess the mods will overlook this one! (oh and I think it qualifies as extreme too!!) ( I have this over in the Video/monitor thread but know a few of you extremists like me rarely wonder out of this forum!)

Im just working out the details and wondered if anyone else has tried anything like this??

Im considering going with 3 or 4 Optoma 720 1280x800 120Hz short throw projectors in portrait rear projection ($1500 each) on a purpose built curved Plexiglass screen? (2400x1280 Native Nividia/ATI surround or 3200x1280 with 4 projectors using Eyefinity or a hardware based monitor extender from Mviewtech for Nvidia which can also support 120Hz 3d!)

Thats what Im considering for my next upgrade before Ivybridge-e comes out.

Combined with an edge blending solution, probably Mviewtech hardware based edge blending compatible with Nvidia 3d (instead of software based so that the desktop can still be used)

This will create one seamless edge to edge image in a 82" wide x 30" high arc with 4 projectors or 65" wide x 30" high arc with 3 projectors.

The res given above is quite manageable by todays GPUs in SLI/Crossfire and you cant tell me that something the equivalent size of 3x24" monitors in Landscape isnt wide enough, especially when the screen is 30" high.. Imagine hmmmmmmmmmmm

See calcs below. Still need to work out optimum seating distance and PPI to make sure res is high enough but not too high for the optimum seating position!



Another different example below with front projection short throw projectors and a different approach to edge blending , though for me 800 vertical res isn't enough (and I think I would prefer the higher vertical res in portrait with this aspect anyway. Going with the rear projection means perfect monitor type quality image with no ambient light problems even if its not in an enclosure. The plexiglass has ambient light absorption properties to give a perfect picture even in well lit rooms or even in daylight!
Projector throw distance would be right down around minimum .5 of a meter so not very deep either!
Im still working on the theory and looking for examples and components but I really think the perfect bezel-less solution can be done for under $5K now with these types of parts. Or even much less with cheaper $600 projectors!

Example front projection short throw



http://www.youtube.com/watch?v=sFTrndLQ9SA

http://www.pixelwix.com/proddetail.a...=PixelwarpSGL2


Plexiglas Hi-Def rear projetion screens are lightweight, durable, and offer exceptional performance. The diffusion technology enables the use of short throw and off-axis projection while providing optimal contrast. Hi-Def can also be used outdoors. Largest Sheet size is 81" x 144".

http://www.spyeglass.com/Plexiglas.html

PS3 120" example of rear projection.

http://youtu.be/Z2896D5G3Sw?t=6m40s

Anyone got any input, ideas or experience with this sort of thing?

[mgrobins]

Have you considered some of the LED Pico projectors?

They are short throw and have good luminence along with excellent life and low noise.

As a front projection fan (I have a dedicated cinema at home) I know that calibration, image variance and bulb changes are all factors that would require consideration for you.

Edge-blending is all very well but you also need to account for performance variance in each projector else the blend is not seamless.

This means either full gamut control in the projector or the facility to control colour gamut in the blending hardware.

As far as maintaining the bend radius in your screen you could consider retrofitting a front projection screen frame. I am into CIH (constant image height) and as I use an anamorphic lens a curved screen is best to avoid barelling of the image. A mate of mine who is a custom installer has been working a number of solutions for adjustable curved screens for some years now.


I'm really interested in how this comes together for you.... it's a fantastic idea .

Check out my setup for my workstation. I reckon with an appropriate build for your rear projection setup this would be perfect .

PM me if you want any input .

[Phatboy69]

Originally Posted by mgrobins

Have you considered some of the LED Pico projectors?

They are short throw and have good luminence along with excellent life and low noise.

As a front projection fan (I have a dedicated cinema at home) I know that calibration, image variance and bulb changes are all factors that would require consideration for you.

Edge-blending is all very well but you also need to account for performance variance in each projector else the blend is not seamless.

This means either full gamut control in the projector or the facility to control colour gamut in the blending hardware.

As far as maintaining the bend radius in your screen you could consider retrofitting a front projection screen frame. I am into CIH (constant image height) and as I use an anamorphic lens a curved screen is best to avoid barelling of the image. A mate of mine who is a custom installer has been working a number of solutions for adjustable curved screens for some years now.


I'm really interested in how this comes together for you.... it's a fantastic idea .

Check out my setup for my workstation. I reckon with an appropriate build for your rear projection setup this would be perfect .

PM me if you want any input .

Thanks yes this requires a lot of research and I appreciate any input you may have!

Im considering the new Q2 pocket LED projectors... $500 each with 300Lumens and 2500:1 contrast which should be good enough for the half meter short throw I want to do. Over in my main thread I have put a lot of my thoughts and reasoning behind this.. thanks for your input, not much has been done in this space for gaming in the country yet!

Main discussion
http://forums.overclockers.com.au/sh....php?t=1039209

[leithals]

Wow, I mean wow, that is a cool idea. Can't wait for some feedback on how it goes.

[Phatboy69]

After a long break from modding and sleeving Im going to try and finally finish the beast. Its been rock solid and havent had to touch it in several months... thats the longest this thing has stayed together in it's almost 2 year evolution!

My Daughter is 15 months old now and can also help!

I have several Sata and power cables to do for new SSDs and the Bluray drive and a couple of other various cables that were needed for the last hardware upgrade.

A new set of HDD drives and finish off the lighting/UV and probably order some UV blue or red tubing to replace the bunnings stuff which is still clear after several months compared to the expensive stuff that clouded up after 3 weeks!

Im too close to this thing now so Ill post a couple pics and you guys can tell me anything I might have missed.. (other than removing stickers.. thats on the list too)

Cheers
Phat

[SiriusDragon]

Sorry for the big necro/bump... just wondering when/if you're going to post pics of the completely finished system

[roamin]

Originally Posted by SiriusDragon

Sorry for the big necro/bump... just wondering when/if you're going to post pics of the completely finished system

here here i agree!!!! wheres the updates on the box and on the wide screen

[Phatboy69]

Im still around and havent had much time to spend on it. Thanks for the interest!! Ill try and get some more of it done this week and take some more pics if I get it done.

[Phatboy69]

Finally Finished!!!

Here's the updated pics...


The Final Product!



Here you can see the final Sata sleeving and the new SSD PCI hotswap slot mounts for the 2x OCZ Vertex 2 120GB in RAID 0 for boot OS. They are removable from the back panel. I ran out of room for SSD's so I also mounted the 4bay hotswap SSD bay below which has 4x Sandisk extreme 120GB in RAID 0 for games. Yes I have everything backed up and an automated daily incremental backup goes to external RAID arrays.. which Ill get to at the end.


Full side on.



Full top view - note nicely painted BL-Ray drive (new 14x LG)


4way sli close up


Front to back view


Back to Front view



GPUs again..




CPU side view


Top down view



Back view


Close PCI slots.. far right see the hotswap SSD cradles.



Front View


Zoomed in..


Front top angle view



All Buttoned up!!






Power Up! (and working!)



















The Full Enchilada!!!!




External RAID arrays... connected via e-SATA
On the left 8x WD 3TB Green drives in 2 lots of 4 drive RAID 10 sets. (5.46TB usable each RAID volume - these are hardware RAID giving about 200MB's)
On the right the slightly older 4bay RAID now with 4x WD 1TB blacks in RAID 0 for some game storage. Giving about 250MB's.

All data from SSD's and the WD blacks is backed up to one of the RAID 10 volumes and all my critical data is again backed up to the second RAID 10 volume including some data from the other RAID 10 volume.

Thats All Folks...!!!!