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Title: R9 280x problem diagnostic? Post by: liomojo1 on November 09, 2016, 09:26:36 PM Well I have 6 x 280x , i modded the timings of the ram with tahititiming mod! It was ok , but after 10 min of mining one card started too fail , I flashed the original bios back to all cards , but one this card remain to make trouble , 0hashrate and windows crashing! When i removed it everything was ok! Now with the original bios it works OK and have enter windows but only if the driver is not installed. When i install the driver , the screen gets all in blue white lines and pc crashes. Now i flashed custom bios with 500mhz core and 150mhz ram. It is working perfectly even hashes with no errors and i can rum 3d benchmarks! When i up the core to 900 with msi afterburn everything is ok , but if i up the ram more than 420mhz it starts to give artifacts and the nice carpet screen! So my question is what could be wrong ? Now it is hashing with claymore miner at core 800(real, default is 1070) and ram 400mhz(reall clock not +400, default is 1500) at the speed of 26sol/s and have no issue , i run
Video Memory stress Test v1.7 and there no errors? What could be wrong , ram or gpu is failing? Title: Re: R9 280x problem diagnostic? Post by: StanchoBS on November 09, 2016, 09:43:54 PM I have same problem with claymore 3.0 , but 3.1 work fine now. Dont know why
Title: Re: R9 280x problem diagnostic? Post by: adaseb on November 09, 2016, 09:45:16 PM Just reflash your original bios back. Or use bios switch.
Title: Re: R9 280x problem diagnostic? Post by: liomojo1 on November 09, 2016, 09:46:30 PM It is not the miner it is my hardware , but if someone can guess what to repair , is a ram issue or gpu is dying or i don`t know?
I reflashed the old bios 10 times but no improvement and there is no bios swich on this card !Asus direct cu II Title: Re: R9 280x problem diagnostic? Post by: adaseb on November 09, 2016, 09:47:36 PM It is not the miner it is my hardware , but if someone can guess what to repair , is a ram issue or gpu is dying or i don`t know? Your flash failed just reflash it again. What GPU is it? Title: Re: R9 280x problem diagnostic? Post by: liomojo1 on November 09, 2016, 09:48:56 PM It is not the miner it is my hardware , but if someone can guess what to repair , is a ram issue or gpu is dying or i don`t know? Your flash failed just reflash it again. What GPU is it? I made my self this custom bios with this low mhz , cause it could`t start with drivers installed! Title: Re: R9 280x problem diagnostic? Post by: StanchoBS on November 09, 2016, 10:23:19 PM Try to reinstall windows and use original bios for first test. Try with only claymore 3.1 for zcash, im sure 3.0 its not working fine. This working for me (maybe i changed slot or cable), and i switched back to original bios for all my 280x. 55H is enought for me
Title: Re: R9 280x problem diagnostic? Post by: adaseb on November 09, 2016, 10:57:43 PM Try with another slot and do a regular gaming benchmark.
Impossible to damage GPU with modified memory straps unless you messed with your VRMs voltages, etc. |