nMP - HP Omen Accelerator - TB3/TB2 adapter - won't start up
 
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nMP - HP Omen Accelerator - TB3/TB2 adapter - won't start up  

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(@criz_me)
Active Member
Joined: 2 years ago
 

Hi all,

I just got a HP Omen Accelerator which won't power up when connected to my nMP.

Connected to another Windows laptop with native TB3 interface everything works well. Device turns on, card is powered up and is recognized by Windows, etc. etc., as soon as the TB3 cable is attached.

Connected to my nMP however, nothing happens - looks like it is not initiated properly. Neither on most current High Sierra, nor on Windows 10 via external hard-drive.

Setup: Mac Pro 2013, 32gb, HP Omen Accelerator, old AMD card (will be replaced by a new one soon), Thunderbolt 2 cable, Apple TB3 TB2 adapter ( MMEL2ZM/A)

How can I power up the eGPU with my nMP?

Any advice is much appreciated!

Thanks

Christian

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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Flint Ironstag
(@flint-ironstag)
Estimable Member
Joined: 3 years ago
 

Are you plugged into bus 0?  The 2 immediately above the HDMI port.

MP 6,1 | 4c | d700
MP 6,1 | 6c | d500


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secretsquirrel
(@secretsquirrel)
Active Member
Joined: 2 years ago
 

I had the same problem but with the Omen Accelerator and a Macbook late 2014 connected with the Apple Thunderbolt 2<->3 Adapter.

The Omen Accelerator never turned on no matter how it was connected or which cables where used.

I assume the Omen I got was delivered with an older firmware, not the latest 25.25. But I have no access to a Windows computer with TB3 ports at the moment to verify this.

Have you checked the firmware of your Omen on the Windows Laptop?

2014 27" iMac 5K (R9 M295X) [4th,4C,K] + RX 580 @ 16Gbps-TB2>TB3 (Sonnet Breakaway 350) + macOS 10.13.2 [build link]  

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(@criz_me)
Active Member
Joined: 2 years ago
 

Hi Flint, yes I am. None of the six ports worked out...

Thanks

Christian

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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(@criz_me)
Active Member
Joined: 2 years ago
 

Yes, successfully updated the firmware yesterday via a TB3 notebook.

Also powered the nMP off for 20 seconds, did a NVRAM / PRAM reset.

Tried an NVIDIA 1070 today

Didn't help.

Any further ideas? 

Cheers

Christian

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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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

What does the Thunderbolt tree in System Information look like? Does the light in front of the OMEN Accelerator power on when connected?

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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(@criz_me)
Active Member
Joined: 2 years ago
 

It says no device connected. 

The eGPU case is not powered on. Red light stays off. 

Unless I connect it to a native TB3 port, then the whole box starts up. 

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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secretsquirrel
(@secretsquirrel)
Active Member
Joined: 2 years ago
 

Could it be that the Omen accelerator needs too much power over the Thunderbolt port to be activated, due to the vast amount of interfaces it provides (eg. network, 4x USB)?

Apple states on their Thunderbolt information site, that the Apple Thunderbolt 3<->2 adapter only supports one powered Thunderbolt 2 device on a USB-C equipped Mac.

All working Omen Accelerator builds I have seen to date uses a native TB3 connection, or am I wrong?

2014 27" iMac 5K (R9 M295X) [4th,4C,K] + RX 580 @ 16Gbps-TB2>TB3 (Sonnet Breakaway 350) + macOS 10.13.2 [build link]  

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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

If possible, I'd say check the Thunderbolt 2 cable and Apple TB3-to-TB2 adapter to make sure they both work.

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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(@criz_me)
Active Member
Joined: 2 years ago
 

Thunderbolt 2 cable - tested - works

MMEL2ZM/A adapter - tested - unsuccessful:

- Booted the nMP in target disk mode and connected via adapter & tb2 cable to windows laptop. Adapter is found in device manager, but no disk is shown in disk manager. After some time windows shows "Unknown USB Device (Port Reset Failed)"

- Connected laptop to Sonnet Echo Express SE II box via adapter & tb2 cable. Device does not power up

Once I connect the nMP to the Sonnet box tb2 to tb2 the Sonnet powers up.

I did disconnect - wait - reconnect a few times of course to test.

Something related to the adapter, good guess itsage. Or a windows driver issue. The adapter is brand new. Somehow I feel this is a design / protocol issue, not a necessarily a hw defect. Unfortunately, I do not have a second adapter to test...

Cheers

Christian

Edit: Also, connecting to an LG 34'' TB display did not work. Though the right source is selected the display still shows "no signal".

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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