The ZSX Breakout Board And Your Motherboard: A Wiring Guide

How To Properly Connect the ZSX Breakout Board and Your Motherboard: A Wiring Guide with Pictures

December 2020 saw the decisive end of the cryptocurrency winter, but it was also the month that Parallel Miner's game-changing all-in-one ZSX breakout board was officially released as a belated Christmas / Yule gift for our customers worldwide. The ZSX breakout board is compatible with two different server power supply pin configurations so it can be used with many different common and popular PSUs. The following year we released the upgraded ZSX Amp breakout board.

In 2023, we released the X15B ZSX board, which is compatible specifically with Dell server PSUs. (Pro Tip: you can find the full breakout board compatibility list here to ensure you buy the correct breakout board/PSU combination.) This guide is for every version of ZSX breakout board.

Although a lot of this information could be found in the ZSX breakout board manual, we were getting a lot of questions about how to correctly connect everything to a motherboard. In this ZSX wiring guide, we will primarily use the BioStar TB250-BTC motherboard, but the process will be almost identical for all other motherboards. If you have questions about your specific motherboard that this guide doesn't answer, then please contact us!

ZSX Breakout Board Ports And Cables Overview Guide

ZSX Breakout Board Ports Labeled | How To Properly Connect the ZSX Breakout Board and Your Motherboard: A Wiring Guide with Pictures

  1. 5V Remote Sensing Molex Port - Connect our optional remote management module to remotely turn your rig on/off or set up a recurring power cycle.
  2. Two 4pin Ports - Interconnect our compatible breakout boards so all linked PSUs turn on/off together. Currently, we offer a 19-inch interconnect sync cable.
  3. ATX 24pin Port - To power your motherboard. The included cable also has a CPU 4+4pin plug.
  4. SATA Labeled Molex Port - Use the included especially wired cable to provide Molex/SATA power to 1 HDD/SSD. This port does not push power unless the blue LED light is on.
  5. 6pin PCIe Ports - 16 ports to power your motherboard's Molex ports, your GPUs, and PCIe-powered risers.
  6. Fan Hub Ports - 10 ports to connect your fans to keep your rig cool. Tested and confirmed to support up to 500W (if available from your PSU). Fans will run at 100% by default.
  7. PWM 4pin Port - Want to control your fan speed for a column of connected fans? Connect the optional PWM fan cable to your motherboard's chassis/system fan port. (Pro Tip: The ZSX-Amp has only 1 control port for all 10 fan ports.)

***Please Note: Ports number 3 and 4 on the ZSX board share a combined 180W maximum output. Pulling more than 180W can damage the ZSX.***

  1. Molex Splitter - Ideal for motherboards with multiple Molex ports that demand power.
  2. 6pin to 6+2pin PCIe - Use these PCIe cables to power your GPUs and risers. This 6+2pin can conveniently be used as a 6pin or as an 8pin! (We have other PCIe cables available as well.)
  3. 4Pin PWM Fan Cable - This optional cable allows you to control the speed for the associated column of connected fans. Without it, the fans will also be at 100% power.
  4. 4Pin Fan Extension Cable - Use this 22inch cable to extend your fan's cable to reach the ZSX board fan ports.
  5. ATX 24pin With CPU 4+4pin - Bundled with the ZSX, this cable is used to power your motherboard and CPU.
  6. Molex to Molex and SATA - Wired specifically to be used with our ZSX board's Molex port, this cable is meant to provide power to an SSD. This cable is bundled with the ZSX.
  • Tip: We now also offer the above 2 cables together here without a ZSX board.
  1. PCIe to Molex - Power the Molex ports on your motherboard via the ZSX board with these PCIe cables, with or without a Molex splitter.
  • Not pictured: Interconnect Sync Cable - Connect all of our compatible breakout boards to power on/off together when you press the power button on any of the connected boards.
  • Not pictured: PCIe to CPU 4pin - For motherboards, such as ASUS Prime X570-P, that require 8pin AND 4pin for full CPU power.

Motherboard Ports Overview Guide

BioStar TB250-BTC Ports Labeled | How To Properly Connect the ZSX Breakout Board and Your Motherboard: A Wiring Guide with Pictures

  1. CPU Power Port
  2. A and B: Molex Ports
  3. SATA Data Ports
  4. ATX 24Pin
  5. SYS Fan Port (Chassis Fan Port for PWM Control)

An important note about motherboards in general: not all motherboards have the same number of Molex ports. The ASUS Z270-P, for example, doesn't have any at all.

An important note specifically about the ASUS B250: this motherboard has 3 different 24pin ports, but only port A is required. Ports B and C were included with the assumption that you would need two extra ATX power supplies to power the GPUs and, therefore, would need a way to turn these PSUs on and off. Our server PSUs completely bypass this, making the two extra 24-pin ports useless. However, all 3 Molex ports on that mobo are required!

The Guide: How to Wire the ZSX and Motherboard Together

Step 1

How to Wire the ZSX and Motherboard Together - Step 1: connect the ATX 24pin power to the ZSXHow to Wire the ZSX and Motherboard Together - Step 1: connect the ATX 24pin power to the motherboard

Connect the ATX 24pin cable to the ZSX board.

Attach the other end of the cable with the CPU pin to your motherboard.

Step 2

Next, connect the CPU power onto the motherboard.How to Wire the ZSX and Motherboard Together - Step 2: connect the CPU power to the motherboard

Step 3

Step 3: if using an SSD, connect the 8 wire Molex plug into the ZSX portStep 3: if using an SSD, connect the Molex or SATA cable to the SSDStep 3: if using an SSD, connect any relevant SATA connectors from the SSD to your motherboard If you are using an SSD on your motherboard, then connect the Molex plug with 8 wires into the ZSX board's SATA labeled Molex port.

Attach the appropriate Molex and/or SATA cables to your SSD.

Populate your motherboard's SATA port, as necessary.

(Pro Tip: don't actually unplug any cables in this or any of the following steps. The pictures were starting to look too busy to see each step.)

Step 4

If your motherboard has Molex ports that require power, then it's time to juice them up. Use any combination of the PCIe to Molex cable(s) and the Molex splitter cable(s) as desired.

Step 5

How To Properly Connect the ZSX Breakout Board and Your Motherboard: A Wiring Guide with PicturesHow To Properly Connect the ZSX Breakout Board and Your Motherboard: A Wiring Guide with PicturesDouble-check all connections!

Step 6: Testing

Post the motherboard with the minimum required: CPU, SSD, and one GPU/riser.

Press the power button on the ZSX board and manually turn on your motherboard (unless your BIOS is set to auto-on with power).

Once it successfully posts, add your remaining GPUs one or two at a time. Retest and continue until all are set and running.

Optional Step - PWM Fan Speed Control

Attach your fans to the ZSX ports (not pictured).

Connect the PWM fan cable to the header of the column of fans you want to control and to the CHA / SYS fan port on your motherboard.

If you need them, we also have a PWM cable with fan extension cables kit available.

Optional Step - Remote Power Management

Connect the remote power management module to the top Molex port and set it up to your needs.

For GPU mining, you will most likely not use the power cycle option but, instead, use the remote access to turn the entire setup on/off.

Please refer to the XRMT user manual for directions, FAQs, and troubleshooting related to this product.

Final Step in this ZSX and Motherboard Wiring Guide

Finish up with cable management to your liking.

Miscellaneous FAQs and Troubleshooting

Q: My ZSX isn't working with your Delta 2400W PSU?!

A: First, the Delta 2400W PSU only works on 200-240V, so please double-check that you aren't accidentally connected to American standard 110/120V.
Second, the 2400W PSU has two ports: the slave port (PSU power plug side) and the master port (PSU fan side), the ZSX needs to be attached to the master port as pictured. The slave port only pushes power to the PCIe ports, regardless of which breakout board is attached. None of the extra features (Molex ports, interconnect sync, etc) work on the slave port. The (now retired) X8 is the perfect breakout board for the slave port.

Q: My H110 won't power on with 3 GPUs connected.

A: Go into your BIOS and deselect the power check warning option under the Advanced menu, Chipset Configuration. Please contact us if that does not resolve your issue.

Q: Does my H110 really need the Molex cables when I have powered risers?

A: The manufacturer included the Molex ports for a reason. We give you a way to provide power to them, but it's up to you if you use them or not. The manual says that the Molex ports not only are to provide supplemental power to the board but also increase stability as well.

Q: What do I do if my motherboard needs more than 8pin for CPU power?

A: We know that there are some mobos which require 8+4 CPU pins for power. For the 4pin connectors, you can use this PCIe to CPU 4pin cable.

Q: What are the major differences between the ZSX, ZSX Amp, and X15B ZSX breakout boards?

A: The ZSX and ZSX Amp share the same PSU compatibility. The Amp version has a single fan control port for all 10 fan ports and an on-board LED voltmeter and current display. Meanwhile, the X15B ZSX is compatible with an entirely different PSU pin configuration. (Pro Tip: you can find the full breakout board compatibility list here.)

Left to right: ZSX, ZSX Amp, and X15B ZSX.

Originally posted February 7th, 2021. Last updated January 17th, 2024.

39 Responses

  1. lobotomy99
    I appreciate this. You guys have been extremely helpful, and have shown some really top notch support for me. This guide just adds to the value here, and is welcome. Shoutout to Albert. You are the man. I aint no shill, just a really satisfied customer.
    • Missa-Lynn
      Shoutout to Albert indeed! He took most of the pictures used in the guide! (You know, all the good ones. :P) I'm happy to hear that you found my guide valuable.
  2. imaw robles
    is this compatible with this...?
  3. andrea farina
    is this compatible with hp 750W *2 KT-1500CB?
  4. pyf21
    is the MB 12V rail regulated? Some mobo won't boot as many server PSUs give more than 12.4V.
  5. Marc Rimby
    Hi, Will the gpus show up in the hardware monitor tab of the asrock h110 btc because i don't even see a line that says anything about a gpu. I am unsure if my gpu is detected.
  6. Gabriel Serlenga
    The instructions in regards to the SATA Labeled Molex Port say: "This port does not push power unless the blue LED light is on" . I assume this means you have to be powering an ATX motherboard in order for the blue light to come on and SATA power to be accessible from the breakout board? I'm unable to power a SATA drive on a riserless mining motherboard because of this. Are they're any other alternatives to get power to an internal SATA drive?
    • Joseph g
      Hi Gabriel Some of the power in the Molex port mark SATA is back feed from the motherboard at power-on. If you can power on the Motherboard you will have both 5v and 12v into the Molex mark SATA. "riserless mining motherboard" You mean the GPU's will be directly connected into the Motherboard PCI-E? If so why is this an issue?
      • Matthew Page
        For me I'm using a BTC-D37 motherboard, which just requires a bunch of PCIE power cables and not an ATX cable. However, I do need a SATA power cable for my solo SDD. Is there a way to get this SDD powered on without connecting the ATX cable? Using my standard ATX PSU, I just used the clip that shorts the 4 & 5 pins to get it to power on...
        • Joseph g
          Some SSD drive only requires 12volts of power, they don't use the 5 volts. SATA cable carries both 5volt & 12volt. If this case you can simply split one PCI-E-E and use an adapter from PCI-E-to SATA. Please keep us posted on your result
  7. domainpier
    Will plugging a 5700xt GPU directly into the motherboard cause the board to pull too much power through the 24pin connection? I have power to my GPUs but no motherboard power. No fan CPU start when the button is pushed. The voltage says 122 and the current is 0. I see the risers light up on the other 3 GPUs connected via risers. I have confirmed my 24pin is connected correct along with the two 4 pin to the motherboard. Motherboard fried? Bad 24 pin cable?
    • Joseph g
      Please review this
      • domainpier
        I have reviewed and confirmed my setup. Asrock B450 Pro4. I confirmed that an ATX power supply will start and boot my system. I removed the RX 5700XT GPU from being plugged in directly to the motherboard and added a riser. I still have no power starting my motherboard but all risers for my 4 GPUs light up. I see 12.2 voltage but only a current of 1 now from the meters on the breakout board I am using the power cord from my ATX power supply. I do not believe that would be an issue. Unless I am missing something, the 24 pin or 2 4pin cord is bad. I am not sure what else could cause the issue.
  8. andygon19
    i need some help i couldnt make it works with Asus B250 mining expert, the PSU starts but the CPU Fan doesnt start and the mobo doesnt give me video, someone have a picture of a system working now? thanks
  9. Jose Maria
    Good morning, I just received the supplies that I bought from you a few days ago, I use a B250 board for a rig that will carry 10 3080. My question is the following: I have read in your manual that the ATX 24-pin B and C connections are useless with Delta server fonts. I'm going to use 3 in total, 2 Delta of 2400W and a third of 1400W. My intention is to use the smallest as the main and the two most powerful to feed the graphics and the risers. I have doubts about how to interconnect them through the ZSX, I would also like to confirm that 3 connections from 6 to 6 + 2 pins are enough for each graph. regards
  10. ifdwolf77
    Looking for some help, bought the ZSX-AMP kit with Delta 2400W PSU. I have a asrock h110 pro btc+ mobo and with 1 GPU and a corsair PSU it powers up just fine. Move it over to this(yes I have 220V and yes the board is on the fan side of the PSU) and its a no go on powering the board. The only way I can get it to power the FANS and GPUs is by removing the ATX cable from the ZSX-AMP board. Looking for help before returning this since its not really dong what I need. Also, I an not using the MOLEX ports on the ZSX-AMP board to power anything on the motherboard, I have a separate PCI cable for that.
    • Joseph g
      Please see this When you have issues ... Go back to basic, and start with baby steps. 1) Make sure the PSU power up with the ZSX and X11 by themself!!! Noting connected. Pass, then 2) connected the motherboard only without an HDD or anything else but what is required to post. pass, then 3) install your SSD and reboot. Pass, then 4) add 1 or 2 GPU and reboot ... Otherwise, you will be faced with 300 possibilities.
  11. Brandon Smith
    Do I need to use the ZSX board's "SATA labeled Molex port" to connect to the "SATA_POW1" connector on the H110 Pro BTC+? I can see from the H110 Pro BTC+ manual and on this site that the two 4-pin Molex "PCIE_PWR" connectors are 12v so I can use the PCIe to Molex adapter from the breakout board to power them. I cannot find any data about the "SATA_POW1" connector to see if uses 5v or 12v. What is the recommended method of power this port?
    • Joseph g
      No, that is to power directly a SATA SSD. Contrary to what many would think. You do not need to power that port in order to post the Motherboard
      • Brandon Smith
        Oh, ok. The manual says if I have more than 3 GPUs to make sure to power it and the 3 4-pin Molex. I will have 8. I will be putting this all together next weekend. Just wanted to be sure I was not going to run into stability or heating issues drawing that much power from just the two 4 pin Molex connecters? Do you happen to know if the "SATA_POW1" connector is 5v or 12v? If it is 12v I have a 4-pin Molex to SATA adapter I can use on the PCIe to Molex adapter from the breakout board.
        • Joseph g
          You are using Riser and are powering these Riser already... Hopefully!
          • Brandon Smith
            I will be. I bought the Powered Risers, 1500w HP power Supply kit, and H110 MB, all from here. They currently show label created, so I am hoping they ship today and I will be building by this weakened. I am just making sure I have all my ducks in a row before I start the build. Lots of conflicting info about this board and that SATA power port online. I have read through numerous forums and threads. about 50% say with powered risers it wont be an issue, the other half say it won't be stable. Guess I will find out this weekend. lol This will be my first real Mining Rig. I have been building office/Gaming PCs for over 20 years. This is just a bit different. Thanks for the info. Seems there is no one that knows for certain if that power needs 5v along with 12v. Hopefully it is stable with just the two Molex 4-pin. if not I will have to try Molex 4-pin to SATA and cross my fingers. :)
  12. al_musson
    A capacitor on my riser blew up upon power up. What went wrong ? Did i do something? The zsx board is reading 12.5.
    • Joseph g
      Hi Al. The read-out on the ZSX for Voltage is not accurate unless Calibrated with the PSU that it is connected. 12 to 12.5 reading is very normal. Sometimes capacitors just blow up because they are of poor quality or defective but again 12.5 is normal. IF you purchase the riser from us it is under warranty and we will replace it.
  13. leg.tom
    Hi Joseph, I've a Z390-A PRO Motherboard. Any requirement to get the Molex port on Motherboard connected as well ? Thanks Thomas
  14. Denis Potomatti
    Hei !! Thank you for the AsRock Kit, very satisfied! Can you please, let me know the Output Voltage for the Fan Hub Ports? I have one that requires 12 V from 0.3 to 3 A (max speed), can I connect to one of them and control speed from Mobo? Thank you once again, Denis
  15. electron6
    Hi, I purchased a ZSX_AMP (70722 order) When I replaced my standard X11 break out board today (to eliminate the atx PS) The moment I hit the power button to turn on the PC, I heard an arc and saw smoke coming from my SATA SSD and smells burnt. I did use the Molex port marked SATA. Any ideas what happened, before I try to restart my rig?
    • contact.vano
      Exactly the same happened to me... twice now. I followed the guide very carefully and used the cables which came with the order (#124708) using: - and - with the SSD the Mobo posts, but I am not sure how to make further progress without burning yet another SATA SSD as my board does not support any other disk types. Any ideas how can I troubleshoot?
      • Missa-Lynn
        Hello, I reached out to you yesterday to inquire about the SATA SSD form you are using. Offhand, the only thing I can think of that could be the potential cause is if you used an mSATA or m.2 that uses 3.3V for power in combination with an adapter.
  16. Yousef997
    Everything explained great more than enough, i just have one question the molex in the motherboard there is 2 ports and there is 1 Sata port in official website mentioned to connect the 2 molex and 1 sata to the motherboard, is there is any issue if i didnt connect or add Sata to the motherboard and if i want to connect it how to do that ?
  17. Miguel Harari
    Hi I bought a two Delta 1400w server PSU, one with ZSX AMP board and another one with X11 AmP Board, for some reason I can't make them run both a the same time, im using the interconnect 4 pin cable, but when I hit the power button, only thing it does is turn the other psi on while the one I just pressed stays off, its like they are telling each other to turn one on and on off, but they don't run at the same time, can someone help me please?
    • Joseph g
      Hi Miguel, you are on a catch 22 Delima. Here are the steps to solve the problem. 1) unplug the sync cable 2) power off both PSU 3) Reconnect the Sync cable 4) Now you can power ether PSU and the second will follow. Thank you
  18. kylekbt
    Is there a way to power the sata drive without using a atx connection? I am using a btc-s37 motherboard that does not have a 24pin connection. How do I go around this with this board? The blue light does not turn on to power up the ssd at all. Thank you
    • Joseph g
      Hi, The ATX cable of the ZSX uses the Motherboard 24pin connection and reverses the power SATA back to the ZSX from the motherboard. So, if the motherboard does not have a 24pins connector you are on a dead-end. You can always try PCI-E cable to SATA cable but be mindful you will only get 12volts from that solution. Some SATA devices "Not all" need 5 volts also. Check eBay for that cable option. Keep us posted, please. Thank you
  19. TX_44
    I have a delta 2400w psu and its plugged into a 20 amp 250v sockets that I installed into wiring in my mining room. I plugged it in and it comes on but it doesn’t show any voltage on the breakout board. The fans are spinning however they are spinning on a very low rpm. When I press the on button on the breakout board the fans spin a little faster, but it still does not show any voltage. I plugged in all 12 of my GPUs and motherboard. The motherboard won’t turn on and the GPUs wont turn on. I’ve tried everything it just stays at that low idle fan speed. I even got new breakout boards. I hooked up my atx power supply I had and it powers the motherboard and GPU's that I plug into it. However when I unplug the power cable connected to the back of the server psu and plug in a pcie cable from the atx power supply it comes on fans spinning full blast. Its just when i plug it into the wall it wont work. I'm lost to what the heck is wrong.
  20. vkarthik
    Can this be used with HP 1600W Power supply 796906-001? My use case is to run dual 3090 on AMD 5900x AM4 platform.
    • Joseph g
      Hi, I look at the PSU power bar and it is possible that the PSU would be compatible. Reach out to me on our contact page. I would be happy to send you an X6B just to try it. Please note that if not compatible you may damage the PSU and or the breakout board. We will send you the X6B for free just to try. If that works then the ZSX will be compatible also

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