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Title: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: Funkypala on June 20, 2011, 02:58:49 PM Hi i have build a mining rig with 3 radeon 5870 (1 5850 is planned to come in as soon as i have it).
I use a msi 890 fxa gd70 motherboard and a 1000W psu from corsair. I used Nattys Narwhale guide for mining. With the phoenix miner, but i also tried the diablo miner and it didn t work with that one either. My Problem: when i have 1 Grafic card on the board its all working fine and i can mine with no problems, but a soon as i put the others on the board the whole thing gets unstable and isn t working anymore. I already tried a completely new installation of the system but it isn t working. I also tried Installing it without sdk but no success. If anyone has an idea, what i can do to get this thing running please help me :) I will give you all information i can to get this problem solved. Thanks ( i can t write in the mining forum, thats why i write it here. If someon could relocate this thread i would be very pleased ;) ) Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: User-name on June 20, 2011, 03:11:17 PM My guess would be your power supply. What model is it?
Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: kostia on June 20, 2011, 03:16:32 PM Did you connect power to cards by 4 pin connectors?
Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: Funkypala on June 20, 2011, 03:19:33 PM It is a corsair hx 1000 Watt PSU
I have not yet used 4 pins to connect the card. There are enough pcie express pins for 3 cards. Should i use 4 pins? Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: kostia on June 20, 2011, 03:26:13 PM I have not yet used 4 pins to connect the card. There are enough pcie express pins for 3 cards. Should i use 4 pins? Plug cards to pci-e slots AND plug appropriate wires from your PSU to card's 4 pin connectors, those are for additional power directly from PSU to cards. Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: Funkypala on June 20, 2011, 03:38:58 PM I will try that when im home, but i think two of the cards are already on both, the 6 pins and the 4 pins, but im not sure.
Thanks Any other ideas? Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: User-name on June 20, 2011, 03:40:25 PM What about a fresh driver install? Could also rule out faulty gpu and PCI-E slots.
Title: Re: 3x 5870 Mining rig is unstable when more than 1 card is in - need help Post by: Funkypala on June 23, 2011, 11:39:39 PM Im not sure how, but i finally got it to work, after hours of installing actions :)
I m really gratefull for your input. Thanks to everyone who answered. |