Scrypt mining 4GB vs 8GB DDR | Bitcointalksearch.org

qiuness

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Quote from: GSnak on May 19, 2013, 03:37:52 PM

3x7950 is using about 1.6GB.

That might be the case.. but cgminer will not start with 2Gigs...and thread concurrency above 8192

-5 Error...
I just found one of my miners who has this error. looked in the system proprieties, and there is 2 out of 4 gigs usable... I have not idea why...but i cannot start that miner anymore

GSnak

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3x7950 is using about 1.6GB.

btceic

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♫ A wave came crashing like a fist to the jaw ♫

Quote from: ondratra on May 19, 2013, 01:48:51 PM

Guys you are talking about pc memory? I have 8GB memory on my mining rig, but everything including OS needs only 570MB of memory. When mining using GPU you don't need almost no extra pc memory as GPU memory is used instead.

This may be true, but ram is so cheap these days, $30-$50 gets you 8Gig at least and will keep the system running well for a long time to come. He is already spending $1200 on video cards why go cheap on 1-2 gigs of ram?

qiuness

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Quote from: ondratra on May 19, 2013, 01:48:51 PM

Guys you are talking about pc memory? I have 8GB memory on my mining rig, but everything including OS needs only 570MB of memory. When mining using GPU you don't need almost no extra pc memory as GPU memory is used instead.

I tested and know for a fact that 2GB is not enough for 3x7950

spoid

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bearded, drunk, fat, naked

Quote from: ondratra on May 19, 2013, 01:48:51 PM

Guys you are talking about pc memory? I have 8GB memory on my mining rig, but everything including OS needs only 570MB of memory. When mining using GPU you don't need almost no extra pc memory as GPU memory is used instead.

if it's a dedicated rig, you can go with 4 GB RAM to save some electricity - and get a free RAM bar.

ondratra

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Guys you are talking about pc memory? I have 8GB memory on my mining rig, but everything including OS needs only 570MB of memory. When mining using GPU you don't need almost no extra pc memory as GPU memory is used instead.

newtothescene

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cgminer == low RAM used
reaper == high RAM used

this is generally what I have found in testing my devices. I prefer cgminer based mining.

lcjkevin

newbie

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Quote from: qiuness on May 19, 2013, 01:03:21 PM

Quote

im a newbie . i know PSU but i dont know what is MOBO

Motherboard

OK ....I just asked a very silly question

qiuness

hero member

Activity: 714

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Quote

im a newbie . i know PSU but i dont know what is MOBO

Motherboard

lcjkevin

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Quote from: digitalindustry on May 19, 2013, 10:20:57 AM

Quote from: qiuness on May 19, 2013, 09:57:36 AM

Hello,

I'm new to the business...managed to get hardware hashing up to 7500Khashes...
Right now i have a max of 3 cards on 1 board (Asrock Extreeme4) and 4GB of DDR3.

I plan to put 4 GFXs on 1 board (and some will have 4x7950s)... Do i need 8Gigs or will 4 suffice?

thanks!

Just some feedback - I had 8GB pulled 4 and there was zero change - so 4GB is fine for 4 cards , have 4x 7950s.

don't skimp on the PSU if the PSU has the name "Wing" in it (or any other part of a chicken) , your going to have a bad time .

two most important parts _ PSU and Mobo -

i have a MAX REVO 1500W running 4 cards. MSI z77a-gd65 - they are all on the 1x slots , don't expect to run 6 cards with that board though, better still if you do manage to , PM me !

im a newbie . i know PSU but i dont know what is MOBO

qiuness

hero member

Activity: 714

Merit: 500

thanks for the feedback... I Have 1000W Sirtec PSU's should hold 4 cards... I have not tested this yet, but in case they don't i`ll let you know :p

mercSuey

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Activity: 364

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Quote from: digitalindustry on May 19, 2013, 10:20:57 AM

Quote from: qiuness on May 19, 2013, 09:57:36 AM

Hello,

I'm new to the business...managed to get hardware hashing up to 7500Khashes...
Right now i have a max of 3 cards on 1 board (Asrock Extreeme4) and 4GB of DDR3.

I plan to put 4 GFXs on 1 board (and some will have 4x7950s)... Do i need 8Gigs or will 4 suffice?

thanks!

Just some feedback - I had 8GB pulled 4 and there was zero change - so 4GB is fine for 4 cards , have 4x 7950s.

don't skimp on the PSU if the PSU has the name "Wing" in it (or any other part of a chicken) , your going to have a bad time .

two most important parts _ PSU and Mobo -

i have a MAX REVO 1500W running 4 cards. MSI z77a-gd65 - they are all on the 1x slots , don't expect to run 6 cards with that board though, better still if you do manage to , PM me !

you need to run an Ivy Bridge processor with that mobo or else that sixth slot disables itself...I run six gpus no problem.

...you're welcome.

BrewCrewFan

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Activity: 672

Merit: 501

Quote from: digitalindustry on May 19, 2013, 10:20:57 AM

Quote from: qiuness on May 19, 2013, 09:57:36 AM

Hello,

I'm new to the business...managed to get hardware hashing up to 7500Khashes...
Right now i have a max of 3 cards on 1 board (Asrock Extreeme4) and 4GB of DDR3.

I plan to put 4 GFXs on 1 board (and some will have 4x7950s)... Do i need 8Gigs or will 4 suffice?

thanks!

Just some feedback - I had 8GB pulled 4 and there was zero change - so 4GB is fine for 4 cards , have 4x 7950s.

don't skimp on the PSU if the PSU has the name "Wing" in it (or any other part of a chicken) , your going to have a bad time .

two most important parts _ PSU and Mobo -

i have a MAX REVO 1500W running 4 cards. MSI z77a-gd65 - they are all on the 1x slots , don't expect to run 6 cards with that board though, better still if you do manage to , PM me !

Agree on the PSU dont agree on the mobo part. Your hashing is not dependent on your mobo at all in fact you can run your card in a x1 PCIE slot and notice no drop on a $60 mobo .

digitalindustry

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‘Try to be nice’

there's my good karma for the day! now i can go steal stuff !

digitalindustry

hero member

Activity: 798

Merit: 1000

‘Try to be nice’

Quote from: qiuness on May 19, 2013, 09:57:36 AM

Hello,

I'm new to the business...managed to get hardware hashing up to 7500Khashes...
Right now i have a max of 3 cards on 1 board (Asrock Extreeme4) and 4GB of DDR3.

I plan to put 4 GFXs on 1 board (and some will have 4x7950s)... Do i need 8Gigs or will 4 suffice?

thanks!

Just some feedback - I had 8GB pulled 4 and there was zero change - so 4GB is fine for 4 cards , have 4x 7950s.

don't skimp on the PSU if the PSU has the name "Wing" in it (or any other part of a chicken) , your going to have a bad time .

two most important parts _ PSU and Mobo -

i have a MAX REVO 1500W running 4 cards. MSI z77a-gd65 - they are all on the 1x slots , don't expect to run 6 cards with that board though, better still if you do manage to , PM me !

qiuness

hero member

Activity: 714

Merit: 500

Hello,

I'm new to the business...managed to get hardware hashing up to 7500Khashes...
Right now i have a max of 3 cards on 1 board (Asrock Extreeme4) and 4GB of DDR3.

I plan to put 4 GFXs on 1 board (and some will have 4x7950s)... Do i need 8Gigs or will 4 suffice?

thanks!

Topic: Scrypt mining 4GB vs 8GB DDR (Read 1765 times)