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Razer Core X Chroma - Can anyone confirm if the PSU fan is always on?  

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rb6freak
(@rb6freak)
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May 8, 2019 11:38 pm  

Hi guys, can any Razer Core X Chroma users check if their PSU fan is always powered on, especially on cold startup?

The reason I ask is - I've modded mine with a new PSU fan, however it is not spinning. The stock fan is D80SH-12 DC 12v .3A and the fan I slapped in there is a 12V .07A. I ran a quick Firestrike test, it did not spin at all (laptop has separate power, not ultrabook running on PSU power). It also didn't get very warm to begin with. Before I check wiring, I just wanted to ask current owners if they can check if their PSU fan is spinning when the core is cool and idle.

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blawlog
(@blawlog)
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May 9, 2019 12:45 am  

The PSU fan on mine turns on as soon as I flip the power switch. The exhaust fan next to it only starts to spin when I turn on a connected device.

2017 HP Spectre x360 15 (i7-8550U, MX150, 16GB RAM)
Razer Core X Chroma with Gigabyte GTX 1660 OC G6


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rb6freak
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May 9, 2019 12:56 am  

Thank you very much!

I will try a fan with higher power draw first, then check my wiring. I can't use the oem fan to as I've cut the wires too short.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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rb6freak
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May 9, 2019 2:57 am  

Interesting. Still no luck for me. I suspect it is due to you charging over the Thunderbolt 3 cable. Would you mind trying to power on the PSU without the thunderbolt 3 cable connected, and reporting if the fan spins or not?

I've tried multiple fans, up to 12V .35A, still no luck. I'm 100% certain I did not reverse the polarity of the fan wires. I'm not charging over thunderbolt, so perhaps its not engaging. I'll just have to get it up to temp and pray that it will turn on. Or watch it burn 😆

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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blawlog
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May 9, 2019 5:49 pm  

Good news, I powered the enclosure on without a TB3 cable connected and the PSU fan did not spin up. Apparently it's only when the enclosure has anything to do (including just trying to charge a powered down laptop with a full battery) that it bothers to spin that fan. 

Out of curiosity, why did you replace the PSU fan? Were you concerned with the stock fan's noise?

2017 HP Spectre x360 15 (i7-8550U, MX150, 16GB RAM)
Razer Core X Chroma with Gigabyte GTX 1660 OC G6


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rb6freak
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May 9, 2019 6:20 pm  

Thank goodness! I was beginning to worry I messed something up. I ran Firestrike stress test 3 times consecutively and it still did not turn on the fan.

Yes, I can't deal with loud fans. I've stalked other threads and videos of people discussing their experience fan noise and decided to replace it before I even powered on the Core for the first time LOL. I ran the stock PSU fan on 5V USB power after I took it out, it was already louder than my liking. I picked a fan with enough CFM to do good work, while limiting noise.

Thank you for testing this for me.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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TonyVee
(@tonyvee)
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May 18, 2019 3:36 pm  

Yeah it’s always on but can’t hear it.

I can’t watch any movies in my ITunes library. The video signal is coming out all scrambled pink and green glitches. Only ITunes videos are doing this and it began with this 10.14.5 Mojave update that included Airplay. Does anyone here with Radeon 56 or 64 with Razer Core X have the same problem? I’m trying to figure out if Airplay or the Razer broke ITunes.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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craftsman
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May 20, 2019 6:28 pm  

@tonyvee

If you have 'Prefer eGPU' set for anything that uses Quicktime then disable it. Decoding video should be done on CPU. See if that works. 

In fact you should allow macOS to automatically manage everything if you are using an external display.

MacBook Pro 2018, Razer Core Chroma, Radeon VII pending


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TonyVee
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May 21, 2019 11:24 am  

@craftsman

Thanks, I tried everything. Turn on and off Prefer eGPU, change monitors, GPU attached and not attached, reset PRAM etc etc etc. Test the GPU in two PCs etc

There is definitely a video bug introduce in 10.14.5 that exists in anything that uses QuickTime. I can play any streaming movie service in Chrome no problemo. I can’t play streaming DRM video in Safari correctly. Only unprotected videos like YouTube channels and trailers work in Safari.

This post was modified 6 days ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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craftsman
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May 25, 2019 2:14 pm  

@tonyvee

I have replicated the problems you have experienced and they have always been there before the latest OS update. 

That's why I only use the eGPU to accelerate pro apps. If I want to game I use a console or PC. If I want to watch movies I use a smart TV app.

Even with pro apps there can be issues. The latest Blender beta doesn't see a RX Vega 64 or Radeon VII in the Razer Core Chroma.

This post was modified 16 hours ago

MacBook Pro 2018, Razer Core Chroma, Radeon VII pending


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craftsman
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May 26, 2019 5:20 pm  

@tonyvee thanks for DMing me more info and tests on your eGPU set up. It's good that users share their experiences so we can help others.

After two weeks of testing and studying many user posts, I have noticed that some Radeon RX Vega with Revision ID 0x00c0 have stability problems and video bugs. If you bought a used card that was firmware modded or used for mining then that would exacerbate the problem.

RX Vega with Revision ID 0x00c1 have a much better experience. Therefore I have refunded my Vega 64 with Revision 0x00c0.

I'll now purchase the Radeon VII but will first wait for the fan fix and for Apple to list it in their support article.

 

This post was modified 19 hours ago

MacBook Pro 2018, Razer Core Chroma, Radeon VII pending


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