How do I get 245 Mhash out of my 5830?

[aceman1011]

The clock speed is at 850, max CCC let's me go is 875. Both cards were getting 250 mh/s out of the box with poclbm. I don't know what the mem speed is, butI had it somewhere around 600-800, which oddly worked the best. I would not recommend that you use Phoenix, since it is a less efficient miner. And use the Corsair V2 builder PSU. Mine is only 650W but it's very stable and gives as much power as needed, unlike other supplies that deliver less than needed and than spike. Make sure you have good ventilation, I use the  Rosewill challenger with 5 or 6 fans. I tried using sdk 2.1, but It didn't work until I removed everything but the stream kernel analyzer. Good luck with mining!

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[airdata]

I flashed my 3 5830's to 975/300.  They all run around 280-285.  I know I could oc more but I was having temp issues at first so didnt' want to push it too high right now.

What I did :

Download Radeon Bios Editor  http://www.techpowerup.com/downloads/1962/TechPowerUp_Radeon_Bios_Editor_v1.28.html
Download GPUZ ( to save bios file )   http://www.techpowerup.com/downloads/SysInfo/GPU-Z/
Download ATIWinflash  There's a link in RBE that says " get winflash ".

First, Open GPU Z and there is going to be a save button to save your bios image.  Save it.  Then open Radeon Bios Editor and click load bios.  Find your previously saved bios.  There are alot of options you can do.  I just did this really quickly and only changed 'clock 0' in the overclocking tab to 975/300 and then save bios.  It will save the bios.  Then open ATIWinflash, click load bios.  IT should display all active cards.  Check the one you want to flash and click 'program'.  This step only took about 10-15 seconds per card and then after reboot they were all OC'd.

Full Radeon Bios Editor tutorial here :

http://www.techpowerup.com/articles/overclocking/vidcard/154

[gigabytecoin]

idk how you even manage not to get 245, which should be pretty default.
Some things for starters:
- Flash the BIOS with RBE to 950 core 320 memory
- use phoenix with phatk kernel

For both things there are multiple threads in this forum describing the necessary steps.

Yea I was gonna say My 5830s do 245 stock.

[aceman1011]

Noooo! Do NOT use Phoenix miner with either kernel! It is inefficient and slow. Use the OpenCL Poclbm miner. It adds another 30+ mh/s for me, and it also allows you to use your computer for other purposes while mining, without crashes or slowed graphics.