System freez after few minutes

[isbkch]

With 2x GTX 1070 8Go and ethminer I'm getting around 57 MH/s out of the box

With 2x GTX 1070 and ethminer + eth proxy it's around 67 MH/s out of the box and before overclocking.. Couldn't be happier, right ?

The only issue is after a few minutes the hash drops to 0 MH/s, and the whole system stops responding and I'm foced te reboot

I run Win 10 pro and have latest Nvidia drivers the 382.33 WHQL and I run Ethminer with -U since -G is giving me error "no GPU with enough memory found...) and I use Stratum

My start-mining.bat file looks like this:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

ethminer.exe --farm-recheck 200 -U -F http://127.0.0.1:8080/

And my eth-proxy conf file looks like this:

# Select Ethereum ETH or Expanse EXP
COIN = "ETH"

# Host and port for your workers
HOST = "127.0.0.1"
PORT = 8080

# Coin address where money goes
WALLET = "MyAddress"

# It's useful for individually monitoring and statistic
ENABLE_WORKER_ID = 1

# On DwarfPool you have option to monitor your workers via email.
# If WORKER_ID is enabled, you can monitor every worker/rig separately.
MONITORING = 1
MONITORING_EMAIL = "MyEmail"

# Main pool
POOL_HOST = "eth-us.dwarfpool.com"
POOL_PORT = 8008

# Failover pool
POOL_FAILOVER_ENABLE = 1

POOL_HOST_FAILOVER1 = "eth-us2.dwarfpool.com"
POOL_PORT_FAILOVER1 = 8008

POOL_HOST_FAILOVER2 = "eth-eu.dwarfpool.com"
POOL_PORT_FAILOVER2 = 8008

POOL_HOST_FAILOVER3 = "eth-asia.dwarfpool.com"
POOL_PORT_FAILOVER3 = 8008

# Logging
LOG_TO_FILE = 1

# Enable debug
DEBUG = 0

Anyone experiencing the same issue ? Any ideas ?

[nguylb73]

increase your virtual memory, I do 3 GB per GPU. System freezing maybe not enough power provided by risers, that's why I always get motherboards with 4pin auxiliary power connectors.