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Too sensitive egpu Beast  

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tolyaba1
(@tolyaba1)
Active Member
Joined: 3 years ago
 

Hi

As I posted before I get TDR errors on my display driver but I guess I know what the problem is.

My egpu beast reacts to electricity signals. If I turn on/off my light switch in the room or I hear my fridge buzzing or if I touch hdmi cable or PSU with metal object it gives me diplsay driver crash. Well I guess egpu Beast is unstable on gen 2 speed ok..... but how can I fix this ? will UPS help ? I did the aluminum foil around the hdmi cable, helps a little but not 100%.

Or maybe I can make new cable somehow?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Plastixx
(@plastixx)
Trusted Member
Joined: 4 years ago
 

I would suggest trying a different power supply. The one you have is obviously too sensitive to line fluctuation/noise.

 

FYI, I haven't had any instability issues with my beast and gen2.

2011 17" HP ENVY 17t-2100 [2nd,4C,Q] + GTX 1050 Ti @ 4Gbps-mPCIe2 (EXP GDC 8.4) + Win7 [build link]  

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Yukikaze
(@yukikaze)
Prominent Member Moderator
Joined: 4 years ago
 

That sounds like some sort of grounding problem to me...Is the PSU grounded properly? If you are only using a two-pronged plug, or a socket with no ground, that might be a problem.

Want to output [email protected] out of an old system on the cheap? Read here.
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"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."

 
2012 14" Lenovo Thinkpad T430s [3rd,2C,M] + RX 550 @ 10Gbps-TB1 (Atto Thunderlink) + Win10 [build link]  


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tolyaba1
(@tolyaba1)
Active Member
Joined: 3 years ago
 

yep I'm in a student house....old one.... Grounding is not something they heard off I guess.

Tried 2 psus. They both make coil whine noise under load which was strange to me. ((((

How can I ground it ;DDD

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Plastixx
(@plastixx)
Trusted Member
Joined: 4 years ago
 

The whining noise could be due to a low PWM duty-cycle because there isn't a load on 5V bus. Take a look at a generic ATX power supply schematic and you'll see the feedback for the PWM signal is taken from the 5V bus only. The supply can become unstable without a 5V load.

 

EDIT: I should say not all power supplies work like this. Some have a combine regulation scheme where feedback is taken from the 12V and 5V bus, but on older or cheaply designed supplies they it's more common that there's only 5V feedback.

 

Try putting a 10-Ohm 10W dummy load resistor on the 5V bus. You could even try just plugging in an old HDD if you have one.

2011 17" HP ENVY 17t-2100 [2nd,4C,Q] + GTX 1050 Ti @ 4Gbps-mPCIe2 (EXP GDC 8.4) + Win7 [build link]  

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liezger
(@liezger)
New Member
Joined: 3 years ago
 

I have the same problem but managed to fix it without using any groundings, instead I used ferrite beads on both cables coming from the power supply and the EXP GDC 8.0.

ferrite Beads

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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favas0
(@favas0)
Eminent Member
Joined: 3 years ago
 
Posted by: tolyaba1

Hi

As I posted before I get TDR errors on my display driver but I guess I know what the problem is.

My egpu beast reacts to electricity signals. If I turn on/off my light switch in the room or I hear my fridge buzzing or if I touch hdmi cable or PSU with metal object it gives me diplsay driver crash. Well I guess egpu Beast is unstable on gen 2 speed ok..... but how can I fix this ? will UPS help ? I did the aluminum foil around the hdmi cable, helps a little but not 100%.

Or maybe I can make new cable somehow?

 

Can you post pictures of the parts where you covered with aluminium foil ? . I also think i have emi/noise issue , but not as sensitive as yours. also i have isolated the PSU with its own wall socket. It is next to a router , does that create disturbance ? . I have random disconnects of egpu sometimes for hours its stable sometimes the opposite.

Laptop : Lenovo z410 ( i5-4200m GT740M 12GB 1TB-SSD) running Windows 10 Pro build 14393 // Hot-Plug Enabled BIOS
eGPU : Gigabyte GTX1070@4Gbps-mPCIe2 (EXP GDC 8.4d) + SilverStone sfx-500L PSU


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Arbystrider
(@arbystrider)
Eminent Member
Joined: 3 years ago
 

Most uninterruptible power supplies also condition the AC power coming out of them.

May be worth a try if you can find a used one for cheap.

ThinkPad X230t, i7-3520M @ 2.9 GHz, Windows 7
EVGA GTX 1070 Hybrid, 2113 MHz @ 1043 mV
x1.2Opt, PE4C V3.0, 4Gbps-EC2


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favas0
(@favas0)
Eminent Member
Joined: 3 years ago
 
Posted by: Arbystrider

Most uninterruptible power supplies also condition the AC power coming out of them.

May be worth a try if you can find a used one for cheap.

No i bought a  APC UPS BX700U and it has sensitivity option ( set to high) it didnt work for me but we found out it is my Ordinary tubelight that is making the problems....i have posted about it here

Laptop : Lenovo z410 ( i5-4200m GT740M 12GB 1TB-SSD) running Windows 10 Pro build 14393 // Hot-Plug Enabled BIOS
eGPU : Gigabyte GTX1070@4Gbps-mPCIe2 (EXP GDC 8.4d) + SilverStone sfx-500L PSU


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favas0
(@favas0)
Eminent Member
Joined: 3 years ago
 
Posted by: liezger

I have the same problem but managed to fix it without using any groundings, instead I used ferrite beads on both cables coming from the power supply and the EXP GDC 8.0.

ferrite Beads

What sizes are those ferrite (beads or clamps) 1/2 or 1/4 ? 

Laptop : Lenovo z410 ( i5-4200m GT740M 12GB 1TB-SSD) running Windows 10 Pro build 14393 // Hot-Plug Enabled BIOS
eGPU : Gigabyte GTX1070@4Gbps-mPCIe2 (EXP GDC 8.4d) + SilverStone sfx-500L PSU


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