I got it working but with heaps of hardware errors so went and got some more ram today to take it up to 8gb, I started with it at 8191 and I-13 and was getting @500, tried upping it but no luck so left it running for a couple of hours and then I was able to start upping things.
Currently running it at 20480 I-19 and upped the worksize to 512, I also found those commands and ran the GPU_MAX commands for Windows and getting a solid 830 a card now, have tried to push it more and could get upwards of 870 but then the temp was hitting mid 90's and it would then drop back into the 700's so backed it off until I can work out the temp control.
I tried Auto which would keep it around 90-94, if I did 40-100 it would just go flat out so have it at 40-65 for the moment and its sitting in the mid 80's to 90 but would like to work out what the fans only run at the maximum value, will have to keep working on that one but at least its running largely to its potential.

I've got it running stable but had to crank the intensity and TC way down, anything above 13 and 8192 either won't launch or gives me heaps of HW errors, seems like plenty of people say 4gb of RAM is fine but a few also say you can't get over 8192 until they put 8GB of RAM, will let it run at that for now even though its only getting low 500k and try putting more RAM in it next week to see if that helps.

Yeh I did uninstall and reinstall but I've been swamped at work so not had a chance to spend any more time on it, I'll spend sometime over the weekend troubleshooting it and fingers crossed will work it out.

Once I loaded the conf into the JSON site and edited it there that sorted that issue, it took a bit of messing around with settings but got it's launching and running but it fails after a few minutes but I think thats a driver issue, ran out of time last night to try and sort it but even though its working if I open the AMD catalyst it's saying the 2 R9's are disabled so somethings still screwed up as I have 13.12 and 2.7 installed and the command line they seem to be recognised. Getting pretty close now at least.

No more JSON error 

I can only guess it had something to do with copying it from my laptop to the PC remotely as it tested fine on my machine but failed on the PC, after rewriting a few lines on the PC it didn't come up with a JSON error anymore. Still doesn't find the pool in my conf file, it works when I then manually type it in but for some reason it won't work directly from the conf file automatically. More forums to read I guess to try and work out whats going on there, atleast I'm making more than with Xubuntu as I never could get that to recognise the temp control on that.

Thanks for that, will try it tomorrow.

I'll check the links, for the moment I've just set it up in a decent size gaming case and want to get it working 100% first but will probably look at adding more GPU's later. I'm a bit stuck on the config file at the moment though as I can put in the pool and user details manually and cgminer connects but I can't get it to start with the config file as it tells me I need to add a pool, I copied the details from Multipool and used the settings others have put up for the r9 290 but it won't start?

My config is below and as far as I can tell it all correct yet cgminer fails when trying to us it?

{
"pools" : [
{
"url" : "http://pool1.us.multipool.us:7777", "user" : "XXXXX.1",
"pass" : "x"
}
],
“intensity” : “20′′,
“vectors” : “1′′,
“worksize” : “256′′,
“lookup-gap” : “2′′, “thread-concurrency” : “32765′′, “gpu-engine” : “1000′′,
“gpu-fan” : “40-100′′, “gpu-memclock” : “1350′′, “gpu-powertune” : “20′′, “temp-cutoff” : “99′′, “temp-overheat” : “95′′, “temp-target” : “90′′,
“api-port” : “4028′′, “expiry” : “120′′, “failover-only” : true, “gpu-threads” : “1′′,
“log” : “5′′,
“queue” : “1′′, “scan-time” : “60′′, “temp-hysteresis” : “3′′,
“scrypt” : true,
“kernel” : “scrypt”, “kernel-path” : “/usr/local/bin” }

I'm one of the owners 

Hey Guys

I've just put together a miner and have everything pretty much sorted but my config file doesn't work. If I launch cgminer with no config file I can manually put in the different pool addresses and get it running but I can't with my config file, I've tried removing everything but the pool details and username/password and even that doesn't work, from what I can see I've copied in a file based on R9 290's in fine an edited it correctly but still no luck. Any suggestions would be appreciated as not sure what I've done wrong.

I'm running 3.7.2 of cgminer and my config file is,

{
"pools" : [
{
"url" : "http://pool1.us.multipool.us:7777", "user" : "XXXXX.1",
"pass" : "x"
}
],
“intensity” : “20′′,
“vectors” : “1′′,
“worksize” : “256′′,
“lookup-gap” : “2′′, “thread-concurrency” : “32765′′, “gpu-engine” : “1000′′,
“gpu-fan” : “40-100′′, “gpu-memclock” : “1350′′, “gpu-powertune” : “20′′, “temp-cutoff” : “99′′, “temp-overheat” : “95′′, “temp-target” : “90′′,
“api-port” : “4028′′, “expiry” : “120′′, “failover-only” : true, “gpu-threads” : “1′′,
“log” : “5′′,
“queue” : “1′′, “scan-time” : “60′′, “temp-hysteresis” : “3′′,
“scrypt” : true,
“kernel” : “scrypt”, “kernel-path” : “/usr/local/bin” }

Yeh I was going with 3x to start with but thought it would be better (not to mention cheaper) to go with 2x 290 for now and see how it goes, the cost of upgrading the PSU to a 1200w and a 3rd card increased the build cost quite a bit so decided 2x 290's would be enough for what I'm trying to achieve for now and if it works out ok I can reassess if I want to invest more.

Will I be ok to run 2x 290 on that mobo without risers to start? Been a long time since I built any PC's so don't want to burn anything out.

I was pretty sure from what I've read I was ok but good to know. I've ordered the parts and picking them up soon to do the build, I'm putting it in a Raven RV04 case as the plastic crate through better for airflow isn't really an option in the server room but the RV04 should flow well enough with only 2x GPU's in the case, I will look at adding a 3rd GPU later once I'm happy everything is working as required and will obviously need a riser to space them out then but with only 2x GPU's to start can I just run them off the mobo?

Hi Guys, I put this in the alt section but not replies so hoping some one here might be able to answer it.

I'm looking at possibly setting up a mining rig for alt coins, I've got some friends who are mining and I've been looking at the new asic miners but have also been doing some figures on what it would cost me to build something now and looking for some feedback on spec's.

As most the mobo's and gpu's recommended are all out of stock I've been pricing up on what I can get via local suppliers and what I've seen in the forums, current list which can change is, (all of the below I can get right now)

ASUS R9290-4GD5 4GB DDR5 PCIE Graphics Card (x2 or x3)
Gigabyte F2A88X-D3H ATX DDR3 FM2+
AMD A4-5300 Dual Core 3.4GHz 2MB Cache Socket FM2 65W
SilverStone Silverstone Strider Plus 1000W Modular ActivePFC ATX 80plus Silver PSU

Do those items sound like a reasonable setup, would 4gb of RAM be enough and how many powered risers should I run with that mobo, or do I need to bother if I only use 2x GPU's? I can get some better mobo's that are also recommended but at over twice the price and from what I've read sounds like the above should be fine but any recommendations are appreciated.

I can run it in our server room at work so its temperature controlled so just planning on a basic case with a few fans which I hope should be plenty to keep them under control.

Let me know if there is a better setup I should be considering otherwise I think its worth the investment as I should be able to get it to

Since I've only just signed up and can't post anywhere else I guess I'm going to have to ask the question in here.

Wheres the best info on reading markets for a newbie? I know there is plenty of info in the forum but are there other articles that are recommended on reading trends and how the market works so I can't get a better understanding of what its doing and why?