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Replacement PSU Razer Core X  

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Kid
 Kid
(@kid)
Active Member
Joined: 2 years ago
 
Inkedrazer core x handle opened LI

Red box is the stock PSU switch and cable opening. Green box is how most PSU arrange their switch/cable/hybrid fan mode button. Ridiculous design by Razer. If you use a ATX PSU, why do you need the extra panel causing so much trouble.

The Seasonic one you chosen, although low end ish, still comes with FDB fan which is the best. Other manufactures are not as generous as Seasonic on fan. The two I listed are expensive but still using sleeve bearing. I won't say they are noisy but definitely not as quiet as FDB fan.

This post was modified 2 years ago

HP Spectre 15-ch000 x360
Razer Core X
SAPPHIRE NITRO+ Radeon™ RX Vega64 8G HBM2 Limited Edition
Seasonic Prime Ultra Titanium 1000W
Noctua NF-F12 industrialPPC-3000 PWM
Monoprice Thunderbolt 3 (40 Gbps) USB-C Cable, 100W, 2.0m
Thermalright TF X
FujiPoly SARCON XR-m

 
2018 15" HP Spectre X360 (VegaMGL) [8th,4C,G] + RX Vega 64 @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]  


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swchoo6087
(@swchoo6087)
Active Member
Joined: 2 years ago
 

Thanks agian,

So as far as I understand, among worthy-replace products, Corsair SF750 (Platinum) and Silverstone SX800-LTI (Titanium) are the only ones can be replaced without any additional efforts which satisfy the "red" area. Most of ATX powers including one that I linked are not compatible due to back panel which is "green" area. Am I right?

If I'm right, you must went through some additional efforts to use Seasonic Prime Ultra Titanium 1000W model which is ATX type. Now I'm really interested how you made it.

Macbook Pro 2018 15" (i7 8850H, 16GB RAM, 512GB SSD, RP560X)
Razer Core X + SAPPHIRE Vega64 Reference


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

I just posted my build with a modded Core X and a Seasonic PSU, take a look:

https://egpu.io/forums/builds/2018-15-inch-macbook-pro-touchbar-gtx1070ti32gbps-tb3-razer-core-x-win10-feldeci/

2018 15" MacBook Pro (RP560X) [8th,6C,H] + GTX 1070 Ti @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]  

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Kid
 Kid
(@kid)
Active Member
Joined: 2 years ago
 

I was thinking about cutting the case or 3D print one but both requires time and money. Now I'm planning to use Velcro to mount the PSU. From the description, one square inch can hold one pound. Using four 4x2 strips is more than enough for a 4.59lb PSU. I will remove the fan, move the PSU towards the fan side, and push the power cable through the stock opening. I will lose access to the switch but pull the plug still works XD. This way I don't need to do any non-reversible modification to the enclosure. I already bought everything but didn't have the time to build it yet.

HP Spectre 15-ch000 x360
Razer Core X
SAPPHIRE NITRO+ Radeon™ RX Vega64 8G HBM2 Limited Edition
Seasonic Prime Ultra Titanium 1000W
Noctua NF-F12 industrialPPC-3000 PWM
Monoprice Thunderbolt 3 (40 Gbps) USB-C Cable, 100W, 2.0m
Thermalright TF X
FujiPoly SARCON XR-m

 
2018 15" HP Spectre X360 (VegaMGL) [8th,4C,G] + RX Vega 64 @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]  


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acsyvc0319
(@acsyvc0319)
Active Member
Joined: 2 years ago
 

Hi, I have a Razer Core X and think the PSU is too loud, even though it is just charging my laptop when it is off; the fan just spinning...

After reading this thread and I happen to have a Corsair SF600 from the desktop so I decided to give it a try....

Everything went smoothly and now I have the SF600 inside the Core X and when it is charging my laptop, I couldn't even tell it is working until I checked the charging light!!  It works and it is dead silent!!!

HP Spectre X360
Razer Core X with MSI GTX 1070 Ti


acsyvc0319
(@acsyvc0319)
Active Member
Joined: 2 years ago
 

To supplement, I read other posts and noticed many ppl are concerning about other PSU alternatives; Silverstone SX800 LTI seems to be the one being mentioned the most.  However, I found its fan is on the other side comparing to the Corsair SF600, so after mounting it to the Core X, the fan is actually sucking hot air from inside the case; so I would consider it is not ideal.  I did some researches among other big brands (e.g. Antec, BeQuiet, Cooler Master, EVGA, Enermax… etc) and could only find the EVGA SuperNOVA 650 GM looks quite similar to the SF600 - the socket and the on/off switch are in the correct orientation and the fan is facing outward to the case.

In my opinion, the Corsair fits very good, its small size can guarantee to fit comparing to other ATX PSU (although Razer said ATX PSU will fit but I wonder....), just that it needs to be secured in the case, I simply used some blu-tac to stick it onto the base and after connecting the cables, the SF600 stays steady even more.

As far as noises go, under load, the fan noise coming out from my HP Spectre X360 is much louder!

So, for those of you who are interested in replacing the PSU of the Core X, suggest to take a serious look of the Corsair SF series!  (Myself is using the old model 80 Plus Gold, there are newer models with 80 Plus Platinum and even go as high as 750 watt).

HP Spectre X360
Razer Core X with MSI GTX 1070 Ti


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swchoo6087
(@swchoo6087)
Active Member
Joined: 2 years ago
 

I REALLY needed to sleep in silence, bought SF600 Platinum at $149.99 on Amazon.
It was drop in replacement as expected but one small thing still maintains as unsophisticated is the hole, does not match 100% with stock back plate.
Power cord and switch button are in right place but the plastic surroundings to power input is too thick that it won't fit in properly. I'll add pictures later.

After all, I really like the silence. Fan on SF600 never spins on idle, even it kept zero-fan condition when I played Starcraft: Remastered.

Macbook Pro 2018 15" (i7 8850H, 16GB RAM, 512GB SSD, RP560X)
Razer Core X + SAPPHIRE Vega64 Reference


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acsyvc0319
(@acsyvc0319)
Active Member
Joined: 2 years ago
 

Yes, I had the same issue with the power socket and on/off switch, I trimmed around 1 mm on top and the bottom plastic frame and now it fits perfectly.

HP Spectre X360
Razer Core X with MSI GTX 1070 Ti


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Stefan Gauntlett
(@stefan_gauntlett)
Active Member
Joined: 2 years ago
 

I am glad i found this thread. I had a v2 core delivered two days ago and the non constant fan noise, with excessive idle fan noise made it unbearable to be in my home office doing anything other than gaming. Considering I do not spend all day and all night gaming, it was unacceptably loud.

Its getting collected and returned to Amazon on Monday, I have ordered the Core X from razar and have had the SF600 platinum PSU delivered today and it will be going straight in when the eGPU arrives. So, thank-you to everyone who has suggested, tried and fed-back on this option. I'm glad the PSU can be replaced on this to a better one.

I bought the Core v2 as I really wanted a docking station and the one cable setup. I've since decided to keep my sanity by modding the core x as described and then adding a cheaper dock and just using two cables instead. Saves quite a bit of money tbh and  i'll keep everything hidden with a bit of cable management creativity!

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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ishikawa_goemon
(@ishikawa_goemon)
Trusted Member
Joined: 2 years ago
 

For those users who are considering replacing the Razer Core X's PSU due to fan noise, this is a link to a another user's disassembly of the power supply. You will run into a problem of non-standard JST-style connector as well as not finding a quieter fan with similar airflow.

https://imgur.com/a/2JQWLlL   [disassembled PSU pics]

Full credit for the pics goes to Reddit user /u/jaskolaszlo

The bottom line is that for the given output in noise and CFM of the stock fan, you would be hard pressed to find a fan which is quieter and produces a comparable CFM rating. The JST 2-pin plug is also a little different than the typical JST PH2 that you see on most PSU fans. This connector is pictured in one of /u/jaskolaszlo's pics at the provided link.

Finally, bringing this information over to this forum for the stock 80mm cooling fan's technical details (I did find the CFM to be a bit high by a factor of 10x but I am reporting what was listed):

Model: MGA8012YR-O25

Dimensions: 80x80x25mm

Operating Voltage: 12V

Airflow: 51.43CFM or 87.38 m3/h [For comparison, a Noctua Fan is about half as loud but also only provides half as much airflow]

Pressure: 7.32 mmAQ

RPM: 3900

Rated Current: 0.42A

Input Power: 5.04 Watts

Sound: 42.1 decibels

Source: https://secure.tsuzuki.co.jp/dl/protechnic/dcaxialfan/808025D.pdf

Finally, on the ProTechnic website, it is current listed under this model number [ MG(1)8012YR-(2)25 ]

 

One final note, I checked the SUNON fans in the same dimension, to get a slightly higher CFM, you would be accepting a 2-3 decibels more of sound.

For their quieter fans in the same dimension, you would be be getting about 15-20 CFM less. Probably not ideal for a hot PSU.

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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