knightsilver
Omnipotent Enthusiast
- Total Posts : 9189
- Reward points : 0
- Joined: 2008/11/21 13:42:06
- Location: Nebraska
- Status: offline
- Ribbons : 14
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 16:57:00
(permalink)
Yes, you should ground at least one motherboard standoff to the PSU. You can put an electrical ring terminal under a standoff and screw the standoff down to the motherboard tray so that it secures the ring terminal. Then, run a wire from that ring terminal to another ring terminal which gets connected to the PSU. For the ring terminal which you connect to the power supply, install a PSU mounting screw through it and into the PSU mounting hole. That way, one of the motherboard mounting screws will be grounded to one of the PSU mounting screws. The PSU case is grounded to the PSU internally.
|
knightsilver
Omnipotent Enthusiast
- Total Posts : 9189
- Reward points : 0
- Joined: 2008/11/21 13:42:06
- Location: Nebraska
- Status: offline
- Ribbons : 14
Re: Motherboard PSU Grounding?
2016/04/22 17:01:24
(permalink)
Thx Ty! And for being detailed on the how, big thx. KS'
|
tucker147
FTW Member
- Total Posts : 1077
- Reward points : 0
- Joined: 2012/07/30 10:12:59
- Location: Nova Scotia, Canada
- Status: offline
- Ribbons : 16
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 18:29:53
(permalink)
You don't need to do that, the system will operate perfectly without any of the motherboard standoff's grounded.
I use a cardboard box as a platform for my motherboard to sit on for my overclocking bench and I've never encountered any grounding issues.
![](http://signature.statseb.fr/sig-1050.gif) The Banshee: Ryzen 5 5600 @ 4.65GHz 1.25V, CPU + 2X GPU Custom loop w/ 360mm & 240mm rads, Asrock X370 Taichi, 2X GTX 780 Ti SLI, EVGA 1300 G2, WD Blue 1TB (main storage), Corsair Force LS 120GB (OS Drive), Fractal Design Arc XL, 2X8GB G.skill Trident Z @ 3200 C14
|
zophar
CLASSIFIED Member
- Total Posts : 4749
- Reward points : 0
- Joined: 2008/08/26 09:48:56
- Location: KC,MO
- Status: offline
- Ribbons : 26
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 18:34:08
(permalink)
Do you have to? No you don't. I had an acrylic test bench with no ground to the standoffs and never had a problem. But it's definitely not a bad idea to do it.
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 20:41:33
(permalink)
If you care about your computer and are worried about reducing the chance of failure due to static shock, you should ground it out.
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 21:16:39
(permalink)
It's supposed to be grounded. It is designed to be grounded. Take that whichever way you will. It's like asking if a 4-wire 220 wire really needs that extra ground when it already has a neutral and you are only using the two hot phases. It will work either way. The correct way is just safer in the worst case.
post edited by ty_ger07 - 2016/04/22 21:18:41
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 22:45:49
(permalink)
bill1024 Normally there is no neutral on a 220 single phase or three phase. If it came off a sub panel the neutral is not bonded so you would need the ground. BX the jacket is grounded. You should always hook up the ground wire and not bond neutral to ground at the fixture either. But on the motherboard the screws have an isolation washer they give you to use, I see no connection on the bottom of the board where the mounting stands go.
![](http://ask-the-electrician.com/images/DRYER-4-WIRE-OUTLET.JPG) And yes, of course you shouldn't use neutral as ground ... that was my point. Just because they are both at the same potential and will function the same doesn't mean they fit the same purpose. Just like the ground from the PSU through the EPS power plug and 24-pin plug don't fit the same purpose as the motherboard grounding. anyways.... No, you are not supposed to use an "isolation washer" between your motherboard screws and standoffs. I have never ever seen any instructions anywhere with any motherboard or chassis say to isolate the motherboard from the standoffs. If you look at the motherboard mounting holes, you will see that the area around them doesn't have the mask over it. In other words, the exposed copper is exposed on purpose.
post edited by ty_ger07 - 2016/04/22 22:55:29
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/22 23:16:15
(permalink)
bill1024 What are all those little washers for that they send in the package of screws?
I have no idea. I have never seen washers come with motherboard screws.
|
wmmills
CLASSIFIED Member
- Total Posts : 4688
- Reward points : 0
- Joined: 2006/01/04 20:47:29
- Location: New Jersey
- Status: offline
- Ribbons : 40
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/23 07:28:28
(permalink)
They are just felt washers to give the screw head a better bite on the board to secure it. Much more necessary years ago, not as much now but most older builders will still use them.
MOBO: EVGA x299 Dark, CPU: I9 10900X, RAM: Patriot Viper RGB 3600 32gb, SSD: Samsung 860 EVO 1TB, M2: Samsung 970 EVO+ 1TB, PSU: CoolerMaster M2 1500, CPU HSF: EVGA 240 CLC HSF~ P/P EK Furious Vardar, G-CARD:EVGA RTX3090 FTW3 Ultra Gaming w/Hybrid kit and Noctua IPPC 3000 P/P, CASE: LIAN-LI PC-V2010B w/ Window mod, OS: Windows 10 Pro 64bit, MON: Alienware AW3821DW ![](https://www.evga.com/badge/associates/193921.png) New EVGA product? Register it NOW with this link: http://www.evga.com/register/default.asp?affiliatecode=4QFQRAMOII Help Our Vets From K-2! [link=https://strongholdfreedom
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/23 10:43:42
(permalink)
![](http://www.cybergooch.com/tutorials/images/buildsystem/IMG_6807.jpg) It's designed to be grounded through the motherboard tray. See the solder balls designed to contact the mounting screws? See the through-board vias connecting the mounting ring to the ground plane inside the board? This is a felt man argument.
post edited by ty_ger07 - 2016/04/23 11:06:51
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16551
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
![](//www.evga.com/community/modsRigs/images/sm_mods_off.gif)
Re: Motherboard PSU Grounding?
2016/04/23 14:29:07
(permalink)
Yes, it will work either way. I already agreed with that statement. I tried to provide some analogies to explain how "working" and being "proper" aren't always the same thing. As stated, if you care about providing the most protection in the worst scenario, the motherboard should be grounded separately through the tray. Grounding the motherboard provides additional radio frequency and electromagnetic interference protection as well as providing additonal protection against damage due to static electricity. EMI, RF, and static care very little about individual grounds or small groups of grounds. Protecting against them requires more grounds and grounds distributed over larger areas. In the OP's case, he should ground at least one of the bottom standoffs the furthest away from the EPS and 24-pin plugs. I feel like we are talking in circles. Do what you want. Either way works. One way is just better and is more true to the engineers' design. It is designed to be grounded separately and redundantly. If you don't care about adhering to the design, go ahead and do whatever you want. You can even make the ground circuit 110v above earth potential, if you want; just don't touch it.
post edited by ty_ger07 - 2016/04/23 14:36:11
|
KaptCrunch
Superclocked Member
- Total Posts : 126
- Reward points : 0
- Joined: 2010/07/10 09:35:00
- Status: offline
- Ribbons : 1
Re: Motherboard PSU Grounding?
2016/04/24 07:49:01
(permalink)
yes use a ground strap/wire if using plastic tray to PSU case for EARTH ground the stand-offs holes on MB are grounded through to PSU ground circuit not EARTH
|