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Low Hashrate Problem
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Topic: Low Hashrate Problem (Read 151 times)
MinerC1
(OP)
Newbie
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Activity: 3
Merit: 0
Low Hashrate Problem
January 17, 2018, 05:29:55 AM
#1
I built a new rig.
Gigabyte Z270p-D3 Mobo
Currently had 4x MSI RX 580 Armor 8G OC GPU's installed.
Powered Risers
I flashed and tweaked each GPU individually and got them each to a stable 30 MH/s. But once I powered the system with all 4 GPU's installed my hashrate dropped to around 19 MH/s each. Using the blockchain AMD drivers, mining with claymore.
Modded Bios (only edited the 2000 strap)
Core Voltage 950
Core Clock 1135
Memory Clock 2200
MSI Afterburner also will read all 0's for the cards when multiple are connected but works fine when only one is connected. Im stumped here, can anyone help me out?
Plant Power
Newbie
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Activity: 41
Merit: 0
Re: Low Hashrate Problem
January 17, 2018, 05:43:27 AM
#2
Can you mine on just one card while all are connected to see what that hashrate is?
MinerC1
(OP)
Newbie
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Activity: 3
Merit: 0
Re: Low Hashrate Problem
January 17, 2018, 10:03:17 AM
#3
I'll try that later today when I get home and let you know the results.
0xcosmos
Full Member
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Activity: 585
Merit: 110
Re: Low Hashrate Problem
January 17, 2018, 06:14:02 PM
#4
did you enable 4g decoding in the bios?
did you change the pcie lane speed to gen1?
did you increased the virtual mem to 16gb?
MinerC1
(OP)
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Merit: 0
Re: Low Hashrate Problem
January 17, 2018, 09:52:42 PM
#5
Quote from: 0xcosmos on January 17, 2018, 06:14:02 PM
did you enable 4g decoding in the bios?
did you change the pcie lane speed to gen1?
did you increased the virtual mem to 16gb?
Yes all of the above has been done.
patofet
Member
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Activity: 97
Merit: 10
Re: Low Hashrate Problem
January 19, 2018, 07:43:43 AM
#6
I have like 24 RX 580 8Gb, and each card give me diferent MH/s like, minimum 18MH/s and maximum 28MH/s in the same conditions and the same that your conditions. I'll stay tuned here
yhhy
Newbie
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Activity: 46
Merit: 0
⇾
Re: Low Hashrate Problem
January 19, 2018, 07:58:16 AM
#7
How big is your PSU?
AS10
Sr. Member
Offline
Activity: 419
Merit: 252
Re: Low Hashrate Problem
January 19, 2018, 10:03:58 AM
#8
What is your PSU?
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Daniel0303
Newbie
Offline
Activity: 31
Merit: 0
Re: Low Hashrate Problem
January 20, 2018, 07:22:01 AM
#9
Try Realtime priority in task manager for the miner it works for me on 3 of my rigs
blue1984
Member
Offline
Activity: 75
Merit: 10
Re: Low Hashrate Problem
January 20, 2018, 07:42:58 AM
#10
i have the same problem on linux
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