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Help I installed a XFX R9 270X in my HP h81010 pc and can not get it to hash right.
Tried guiminer alpha and cgminer 3.72 and 3.66
Tried  Catalyst 13.1 and 13.12
Tried AMD APP SDK v2.8 and 2.9
Tried as a replacement card and bought a powered riser to run it as a second card
     in this config my stock HD6450 get 16kh/s and 270X gets 19kh/s
Checked HP for update bios same re-installed
CGMiner showing no hardware errors or regects

Tried all kinds of bat files some samples:
 
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://global.wemineltc.com:3335 -u xxxx -p xx
 --gpu-platform 1 --remove-disabled --gpu-fan 100 --scrypt --thread-concurrency 15508 -w 256 -I 20 -g 1 --temp-target 80 --temp-cutoff 90 --gpu-powertune 20 --gpu-engine 1120 --gpu-memclock 1500

and

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://global.wemineltc.com:3335 -u xxxx -p xx

Thank you in advance for any help

Remove the HD6450 card and replace on that commandline

 --thread-concurrency 15232 -I 18 --gpu-engine 1100

Which OS and version are you using?

I will tell you right now: that HD6450 is a worthless card as a miner and is mucking everything up.  You need the newest drivers for that 270x, and they do not like that 6450 at all.   I had a 5450 (which is basically a 6450) a while back and had a hell of a time getting it to work with some 7950s, and that was even with older drivers.

I would take out the 6450, uninstall your AMD drivers from the CP to clear out the platform, and reinstall the 13.12 Catalyst + 2.9 SDK.

Your first bat file sample looks good, except -i20 will give too many rejects - try -i 19.


A question though: You are using --gpu-platform 1.  Are your Radeon cards behind an intel integrated GPU or an NVidia card?

using windows 7 64 bit

the only cards i'm using are the ones listed from amd
the first time installing i removed the 6450 and went with the 270x, after that was not working i tried the two together.
Thank you for your input

Ensure you have fully wiped out your current driver platform using the AMD CP uninstall program. 

Lots of problems occur when a new installation conflicts with artifacts from the old driver platform.

Can you still switch that card for a Gigabyte R9-270 OC? XFX are problematic for scrypt mining.

What do you get on Gpu-z "Sensors" tab? Is the card too hot and throttling? Go to the PC bios and disable everything you don't need for mining.

Thanks everyone for you input,

I'm going to run AMD CP uninstall program and remove the 6450
going to try the bat file tweeks
has anyone herd of a mobo that just could not run a video card that's what i'm wandering
btw it has a corsair cx600 psu so i don't think power is the problem

Yes, some have claimed that mobos have influence. I'm yet to see solid evidence, but otoh I see it as a possible.

Disable Windows Desktop acceleration and effects, themes, etc...

You could also boot CraPE (Win8.1PE) or SMOS(Linux) from a usb pendrive.

if you boot from a usb does that remove the drivers from the picture ?

some stats from gpu-z
core 1050
memory 1400
temp 40c (while mining)
load 96%

thanks

Those installations come already with "known good" drivers for mining, at the time they were released. I'm not sure they recognize R9-270's, though.

Plug a TV into the R9 270x with an HDMI cable.
Wait until your desktop shows up on the TV.
Unplug the HDMI cable from your R9 270x. (DO NOT RESTART COMPUTER!)
Start mining.

I'll bet this fixes your problem.

looked for   CraPE (Win8.1PE) in google, went to what i thought was developers page and ended up with malware
Don't think i'll try that again
tried using two montors but will get a hdmi cable and try
thanks

It's in this same forum! https://bitcointalk.org/index.php?topic=247537.0

try bamt linux or 'smos linux' (ltcrabbit also) to rule out driver\software issues.
Then if the cards get proper hash rates, look to hardware

- adequate power supply, with all PCI power leads intact?
- powered riser cable? maybe its bad?

(speaking from experience)

good luck

Tried ltcrabbit usb boot, after 4 hours their website says I'm hashing in the 400 range. So at least I now know it has to be a setting or tweek that's off.
I'm going to keep change things a little at a time till I get it .
Thanks again