Topic: my pc shutdown when im put the second rx470.. please help me (Read 1454 times)

I am using a 600w evga White 80+ psu, cheap and 49A on 12v rail. Got 2 xfx single fan rx470... Motherboard Itautec st-4272 (gigabyte q67m-d2h-b3), working fine.

(Paid 220 @ Pichau)

It depends how much power card draw and what voltage use (usual 12V) and compare what amps can psu deliver for that voltage line, you should think that spikes can be even larger than avarage draw, i never tryed calculate it for self, always played safe and deviler power that card can use on full load even if not use all

I would assume that rx470 on full load would use all 80W from pci-e and rest from external connector, like 180W, ofc when mining it will use less so i would calculate proportional, so like  40W from pci-e and 90W from external connection

powered USB risers not use less energy, just not every motherboard can power many cards

btw was some article not long ago - http://cryptomining-blog.com/8354-how-to-choose-the-best-psu-for-a-multi-gpu-mining-rig/

Chronek

how im can calculate how many gpus my psu can support?
or
how im can calculate how many W the psu can support?

I am using two PSUs on the same pc.
On the second psu I just put the second video card

see the second PSU


Even then it was not supposed to work?

The  USB Risers Use less energy

Thanks
Almir

You have 500W psu powering motherboard, pci-e and one card?
12V 16A can support only 192W
motherboard with cpu disk etc will take about 60W + rx series have tends to take more power from pci-e, so you shoud expect about 75W per card = 210W ....Not to mention that you powered one card external so add 100-150W more

Try motherboard to one psu, external pins of both card from second
(or just motherboard can not support that power draw from pci-e, you could try powered risers too)

thank you for the help

Almir, I'm from Brazil too, your problem is certainly the PSU, it's very weak. You can buy the Corsair CX750 to hold up to 3 RX 470, so you can get an idea.

The PSU on Kabum:

http://Http://www.kabum.com/producto/34217/fonte-corsair-cx-750w-80-plus-bronze-cp-9020015/?tag=cx%20750

If you from Rio de Janeirop, you can buy in Boadica (physical stores).

http://Https://www.boadica.com.br/produtos/f370/103904.html.


EM PORTUGUES:


Almir, eu sou do Brasil também, o seu problema é com certeza a fonte, ela é muito fraca. Vc pode comprar a Corsair CX750 para segurar até 3 RX 470, já da p vc ter uma ideia.

A fonte na Kabum:

http://www.kabum.com.br/produto/34217/fonte-corsair-cx-750w-80-plus-bronze-cp-9020015/?tag=cx%20750

Se vc for do RJ vc pode comprar no Boadica(lojas físicas).

https://www.boadica.com.br/produtos/f370/103904.html.

 

Dear xxcsu

im dont have a Rig yet

in this video of youtube this man do the same thing
https://www.youtube.com/watch?v=QxIS4-jX_zM&list=PLwMMCTQvqoncwqXzVXalTIdDU--4tpasJ&index=34

And in this video below this guy uses the same motherboard that I'm using 5 directly video cards with extensors
https://www.youtube.com/watch?v=i9vodIZQZVg

the motherboard have 1 slot pci express 16x , one slot pci express4x and 3 slots pci express 1x

I'm using the motherboard itself that I already have

and im have a motherboard gigabyte 790A-DS3P that have one pci expresss 16x and another pci express 4x

the first video card are in pci express 16x, and the second video card are in the slot pci express 4x

im not have risers.. the video cards Are directly connected to the express pci slots

I put both psu just to test if psu's power failure problem, I did it only once to test

now im using only one psu.! my system have 8 gb of ddr3

im have two video cards sapphire rx470 of 4gb. see first page

in this page have the picture of my system (motherboard, gpu, psu, etc)

Do you think it would be better to use the usb risers instead of goddess directly connected in the express slotpci?

Directly connected to the express pci slot does not work?

thanks
Almir

I think your problem is power related , maybe some driver issue.

did you tried switching pci slots ? probably you can not , bc you are not using powered risers and have only 2 x PCI Express x16 on the motherboard and 3 x PCI Express x1 slots.

Build a system with 7 or 8 gpu , that is not that easy for a beginner , if you can not deal with 2 gpu forget that rig with 7-8 gpu till you learn a lot more about building rigs , calculating necessary power supply wattage . If you get a right motherboard , PSU , powered risers you can easy build a 6 card setup , but you have to spend some money


" What PSU up to 8 gpu´s will help me ? " - its depend on the gpu itself ... for 6   RX 480 / RX 470 you more than good with a 1200 watts psu, bigger is better

http://www.evga.com/products/product.aspx?pn=220-P2-1200-X1
http://www.evga.com/products/product.aspx?pn=120-G2-1300-XR

if you are planning to build or later upgrade your system for a 7-8 gpu setup i would suggest any of this PSU's
http://www.evga.com/products/productlist.aspx?type=10&family=Power+Supplies&chipset=1600+Watts
or you can use  same watt rated server psu with breakout board

- make sure you have more than 2GB of system memory at least 4GB
- make sure your set  min 16GB of virtual memory in windows
- make sure you have a psu that can handle the load
- you sounds like a beginner , so my suggestion is : dont use 2 psu , if you doing it a wrong way , you can kill any of your system components , ( motherboard , gpu , cpu , memory modules , hdd )
- don't use those adapters you have on your pictures , get a real psu !!!
- get at least 2 powered usb risers and try to switch those pci slots around
- don't switch to win 7 from win 10 , you going to have more problem

not sure if you wired the second pc up correctly .  do you speak Portuguese ?

I don't but maybe someone is able to speak it that can help?  anyone reading this can you translate a bit.

I do not know if you saw it on top.

But I turned on another psu on the 2nd video card.

And the problem continues

--------------

Im live in brazil

What PSU up to 8 gpu´s will help me ?

with great cost x benefit


--------------------

im do all steps

install crimsons 16.11.3
setting afterburnet

but the problem persists

00:18:09:851   14dc   Unsupported Overdrive version 7
00:18:09:851   14dc   Unsupported Overdrive version 7
00:18:11:223   167c   Setting DAG epoch #93 for GPU #1
00:18:11:223   167c   Create GPU buffer for GPU #1
00:18:11:239   a94   Setting DAG epoch #93 for GPU #0
00:18:11:239   a94   Create GPU buffer for GPU #0
00:18:12:890   14dc   Unsupported Overdrive version 7
00:18:12:890   14dc   Unsupported Overdrive version 7

Im live in brazil

What PSU up to 8 gpu´s will help me ?

with great cost x benefit

Thanks
Almir

yeah  your adapters are also weak.

get a real psu.  can you shop at amazon?  if not alibaba   has some good sellers or maybe ebay.   what country are you in.

Change Windows 10 and put Windows 7 can help me ?

im have one pci express 4x and another 16x.
im not using usb riser now !!! it is a problem?
my motherboard is GIGABYTE 790A-Ds3P

see the picture


My PSU has no power cord for the GPU´S

I'm using adapters, see photo above

the problem can be the psu ?

Thanks
Almir

First. Uninstall AMD 16.12.1

Next install AMD 16.11.3

Then install msi afterburner 4.3

Set. Afterburner  at - 50 for under volt

Set power at -10

Set core at 1100

Set memory at 1600

Set fans at 75

Open eth. And let it rip

By the way your psu is really weak and sucks

Dear friends
I do not know what else to do. I'm almost switching windows 10 to windows 7.

I'm running this command and after starting the 7.4 claymores it keeps turning it off.

See the claymores command:
EthDcrMiner64.exe -epool us1.ethpool.org:3333 -ewal 0x4FAd3e68CEc96AfbB0457B17A46fF6896EB57E40 -epsw x

see the Claymores log :
21:42:39:995   14f4   ETH: Stratum - connecting to 'us1.ethpool.org' <149.56.26.222> port 3333
21:42:40:175   14f4   send: {"worker": "eth1.0", "jsonrpc": "2.0", "params": ["0x4FAd3e68CEc96AfbB0457B17A46fF6896EB57E40", "x"], "id": 2, "method": "eth_submitLogin"}

21:42:40:191   14f4   ETH: Stratum - Connected (us1.ethpool.org:3333)
21:42:40:379   14f4   got 39 bytes
21:42:40:394   14f4   buf: {"id":2,"jsonrpc":"2.0","result":true}

21:42:40:394   14f4   parse packet: 38
21:42:40:394   14f4   ETH: Authorized
21:42:40:410   14f4   send: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}

21:42:40:425   14f4   new buf size: 0
21:42:40:613   14f4   got 248 bytes
21:42:40:613   14f4   buf: {"id":3,"jsonrpc":"2.0","result":["0x1cee6749c4f37f4628a3397675631149162dc4dedf3d7735b84aa68780e1ddec","0x21f481048bcbb9267a41b855ddd7d55520ec46ad615026debdabc8741155bb09","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x2ac727"]}

21:42:40:613   14f4   parse packet: 247
21:42:40:629   14f4   ETH: job changed
21:42:40:629   14f4   new buf size: 0
21:42:40:644   13b8   Setting DAG epoch #93...


I followed the suggsy8 guidelines and uninstall the driver in safe mode and installed a new driver

See the screens :




This is my PSU :




Does anyone have any suggestions?

Thanks
Almir

Great

How do i know which psu best just reviewing the specs ??

Can you tell me the best PSU cost x benefit to 7 or 8 video cards?

im have problems with Win10-64Bit-Radeon-Software-Crimson-ReLive-16.12.1-Dec7
What is the best Driver for Sapphire RX470 OC for windows 10?

Thanks
Almir

Psu orginal with certificate for two card,cpu,ram.Try first open game.

Agreed it could also be a PSU problem but I did have a PSU with a single 18A rail which was fine for 2 x RX 480 GPU.

As he mentioned he has used 2 power supplies one to power each card...

The problem is "Unsupported Overdrive version 7" which I believe is a registry issue.

Restart in safe mode

Use the Shift + Restart combination. Another way of getting into Safe Mode in Windows 10 is to use the Shift + Restart combination. Open the Start menu and click or tap on the Power button. Then, while keeping the Shift key pressed, click or tap on Restart.

DDU

The link is here... http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

EVGA makes nice PSU's - their slightly expensive, but worth it.
But yes, your PSU is the problem here.

Suggsy89

How im can remove in safe mode?

and how im can disable crossfire?

==============================================

Xdragon , Which PSU do you recommend? I'll use for up to 7 gpu's?

The reason for the shutdown is from the weak PSU ?

Thanks
Almikr