MSI done
![wheee.gif]()
AMD Motherboards - VRM info database
EDIT 12/1/2020: I have not updated these lists in years, and they were created before I/we had a better understanding of CPU power delivery. I am not an electrical engineer, and these were born out of a hole in the communal knowledge that I wanted to help fill. In modern times, these lists should be viewed as a historical record of interesting discussion. For actual VRM info on current boards I HIGHLY recommend Buildzoid of Actually Hardcore Overclocking on YouTube. This man is actually qualified to dispense advice on motherboard power delivery. I greatly appreciate the time, effort and discussion that everyone contributed in making these lists. I believe we helped to change the discussion around power delivery, particularly in the AMD space. MSi appears to have really changed their ways. As someone that burned down multiple 990/890FX MSi boards, this is all I could have ever asked for.
In light of xd_1771's thread (here), I (and xd) have decided to start making a list of AMD motherboards and their power phases.
Can't find your board on the list? Submit it, and we might be able to add it!:
>>Click Here for Submission Form<<
Note 1: all un-heatsinked boards will support Enzotech MOS-C1 heatsinks
Heatsinks referred to in spreadsheet:
Enzotech MOS-C1
Enzotech MST-66
Enzotech MST-88
Note 2: Often when a board is advertised as 8+2, 16+2, etc, it often still uses 4 channels. There has been some controversy over the advertising of "8+2" phase boards since they are not true 8 channel designs. But, since 8+2 (with four channels), in most (read: not all), situations is much better than 4+1 (4 channels) we still decided to list them by their Phase count rather than their number of channels.
Note 3: Please be aware that just because a board does not have something the "recommended" collumn does not necessarily mean it is a bad board. It can either mean no-data, or not-recommended. As there are hundreds of AMD motherboards, we do not have time to research every one. If you have a question about a particular board, make a thread, or post in this one.
AM3+
AM3+ Motherboard Phasing list - Google Drive
FM2
FM2 motherboard phasing list - Google Drive
FM1
FM1 Motherboard VRM info list - Google Drive
AM3
AM3 Motherboard Phasing list - Google Drive
AM2/AM2+
AM2/AM2+ Motherboard Phasing List - Google Drive
* indicates split power phase
Resources:
Some reading about NIKOS mosfets:
Overclock.net
Why 4+1 is usually avoided amongst overclockers:
http://www.overclock.net/amd-cpus/943109-why-vrms-big-issue-why-usually.html
Explanation of VRM technology:
http://www.overclock.net/general-pr...ication-phases-also-re-exploding-gtx590s.html
In light of xd_1771's thread (here), I (and xd) have decided to start making a list of AMD motherboards and their power phases.
Can't find your board on the list? Submit it, and we might be able to add it!:
>>Click Here for Submission Form<<
Note 1: all un-heatsinked boards will support Enzotech MOS-C1 heatsinks
Heatsinks referred to in spreadsheet:
Enzotech MOS-C1
Enzotech MST-66
Enzotech MST-88
Note 2: Often when a board is advertised as 8+2, 16+2, etc, it often still uses 4 channels. There has been some controversy over the advertising of "8+2" phase boards since they are not true 8 channel designs. But, since 8+2 (with four channels), in most (read: not all), situations is much better than 4+1 (4 channels) we still decided to list them by their Phase count rather than their number of channels.
Note 3: Please be aware that just because a board does not have something the "recommended" collumn does not necessarily mean it is a bad board. It can either mean no-data, or not-recommended. As there are hundreds of AMD motherboards, we do not have time to research every one. If you have a question about a particular board, make a thread, or post in this one.
AM3+
AM3+ Motherboard Phasing list - Google Drive
FM2
FM2 motherboard phasing list - Google Drive
FM1
FM1 Motherboard VRM info list - Google Drive
AM3
AM3 Motherboard Phasing list - Google Drive
AM2/AM2+
AM2/AM2+ Motherboard Phasing List - Google Drive
* indicates split power phase
Resources:
Some reading about NIKOS mosfets:
Overclock.net
Why 4+1 is usually avoided amongst overclockers:
http://www.overclock.net/amd-cpus/943109-why-vrms-big-issue-why-usually.html
Explanation of VRM technology:
http://www.overclock.net/general-pr...ication-phases-also-re-exploding-gtx590s.html
21 - 40 of 1635 Posts
great thread! repping for the effort
Just finished the ASrock sheet.
Damn they have a lot of boards
Damn they have a lot of boards
AM2+ Board
Gigabyte GA-MA78G-DS3H (Rev 1.0)
3+1 Phase
3 transistors
Non Low RDS MOSFETs
No VRM heatsinks
ATX form factor
4-pin CPU plug
CPU TDP limit: 95W
*note
Mine has horrid voltage accuracy (actual voltage would be higher than BIOS settings. 1.325v becomes 1.375v, 1.375v becomes 1.42v...etc)
Gigabyte GA-MA78G-DS3H (Rev 1.0)
3+1 Phase
3 transistors
Non Low RDS MOSFETs
No VRM heatsinks
ATX form factor
4-pin CPU plug
CPU TDP limit: 95W
*note
Mine has horrid voltage accuracy (actual voltage would be higher than BIOS settings. 1.325v becomes 1.375v, 1.375v becomes 1.42v...etc)
what is this crap?
if someone is too stupid to count chokes, then there is no reason for them to be overclocking.
if someone is too stupid to count chokes, then there is no reason for them to be overclocking.
You would be surprised how many times a day we get asked this.
There is also other information such as the quality of the phases
There is also other information such as the quality of the phases
It's something meant for you to go back and refer to not just for choke count but overall quality, TDP support, etc. After all sometimes I'm tired of having to go back to Newegg and have to load bandwidth-intensive for that motherboard (UBB for the lose)
On the other hand... ASUS, Gigabyte, MSI, Biostar, ASRock are all done
On the other hand... ASUS, Gigabyte, MSI, Biostar, ASRock are all done
someone should try oc'ing a 140w 965 on that 2+1 asrock board
Yea, we were both shocked when the asrock site said 125w.
140w would be sad
140w would be sad
am2/am2+/am3
ECS A780GMA-ULTRA
4+1 Phase
8 Pin CPU 12V
heatsinked yes
compatible Mosfet coolers Enzotech MOS-C1 C1100 and stock
TDP 160W(overclock) 140W native.
am2/am2+/am3
ECS A740GM-M
Phase 3
heatsinked no
compatible Mosfet coolers Enzotech MOS-C1 C1100 only
4Pin CPU 12V
TDP 95W
ECS A780GMA-ULTRA
4+1 Phase
8 Pin CPU 12V
heatsinked yes
compatible Mosfet coolers Enzotech MOS-C1 C1100 and stock
TDP 160W(overclock) 140W native.
am2/am2+/am3
ECS A740GM-M
Phase 3
heatsinked no
compatible Mosfet coolers Enzotech MOS-C1 C1100 only
4Pin CPU 12V
TDP 95W
Thank you very much for this effort. Very useful!
Question about the low RDS(on) column ... how do you tell the difference when looking at the device? I thought that the low RDS(on) transistors had four leads, and the traditional transistors had 3 (with one snipped)?
Example: I am looking at my Asus M4A78lt-M LE, and I see what I believe to be traditional mosfets (only two leads connected), not low RDS(on) devices. The table lists this board as low RDS(on) though ...
Question about the low RDS(on) column ... how do you tell the difference when looking at the device? I thought that the low RDS(on) transistors had four leads, and the traditional transistors had 3 (with one snipped)?
Example: I am looking at my Asus M4A78lt-M LE, and I see what I believe to be traditional mosfets (only two leads connected), not low RDS(on) devices. The table lists this board as low RDS(on) though ...
There could be some mistakes on the spreadsheet, particularly on the rds and transistor collumns.
We are going off pictures from the manufacturer's website, so somtimes it is hard to tell.
We are going off pictures from the manufacturer's website, so somtimes it is hard to tell.
Am I right in saying that I don't think ANY AMD motherboard has a better, higher quality VRM lay out as the CH 4 Extreme?
It's even higher quality then the CH4 Formula..
It's even higher quality then the CH4 Formula..
M4N75TD
8+1 Phase
140w cpu support
Heatsinked
8pin +12
Runs cool with overclocked 955BE, had it at up to 1.45v and the mosfet heatsink is cool to the touch.
8+1 Phase
140w cpu support
Heatsinked
8pin +12
Runs cool with overclocked 955BE, had it at up to 1.45v and the mosfet heatsink is cool to the touch.
Quote:
As we find updates, how do you want to handle that?
No problem - Ijust wanted to make sure I correctly understand how to tell the transistors apart.Originally Posted by reflex99;12468056
There could be some mistakes on the spreadsheet, particularly on the rds and transistor collumns.
We are going off pictures from the manufacturer's website, so somtimes it is hard to tell.
As we find updates, how do you want to handle that?
Looking at the design ASUS seems to use primarily only low RDS (on) mosfets and proper drivers consistently on their AM3 boards... I'm not too sure. There can be 1 or 2 drivers I think... I might go back to that article that damric (or who was it) told me about, that's about VRMs. If I could find it.
Very helpful thread! Thanks for all the work guys! Wish i had seen this before i bought mine, but since i got the MSI mobo and 955BE for $169.99 at frys about a year ago, i didn't really research it. I guess i will have to change my avatar soon...when the 'hawks miss the playoffs...
![frown.gif]()
Yeah, Vancouver Canucks don't have to face you guys this time. I'm pretty confident the Canucks'll win the Stanley cup this year, what with Luongo having no losses for game over game on end, all the rookies scoring out of nowhere and Daniel Sedin leading league...... eh, nothing's impossible
![tongue.gif]()
Quote:
http://www.hardwaresecrets.com/article/Everything-You-Need-to-Know-About-The-Motherboard-Voltage-Regulator-Circuit/616/1
Is this it?Originally Posted by xd_1771;12468247
Looking at the design ASUS seems to use primarily only low RDS (on) mosfets and proper drivers consistently on their AM3 boards... I'm not too sure. There can be 1 or 2 drivers I think... I might go back to that article that damric (or who was it) told me about, that's about VRMs. If I could find it.
http://www.hardwaresecrets.com/article/Everything-You-Need-to-Know-About-The-Motherboard-Voltage-Regulator-Circuit/616/1
21 - 40 of 1635 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Overclock.net
A forum community dedicated to overclocking enthusiasts and testing the limits of computing. Come join the discussion about computing, builds, collections, displays, models, styles, scales, specifications, reviews, accessories, classifieds, and more!
Full Forum Listing
Explore Our Forums
Top Contributors this Month
View All
HappySheep
351 Replies
Ichirou
199 Replies
GRABibus
194 Replies
Recommended Communities
