kingpincooling.com

Go Back   kingpincooling.com > Overclocking & Modding > EVGA Overclocking

EVGA Overclocking Dedicated forum for EVGA Overclocking, my other job :)

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-06-2015, 01:07 AM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default E-Power Mod - Datasheet Primarion 3544 help

Hey, trying to do an epower mod and I am having trouble understanding the datasheet. I am trying to find the vr_ready pin on the controller. I can see it on the block diagram on the sheet but I am not 100% sure how that correlates to actual 48 pin chip. My guess would be pin 27 but I am really unsure.

Any help would be awesome, finally got an epower board and going to start off with 8800 gts 512 for first try.

Here is a link to the pdf or I will try and attach it. Thanks.

http://www.xdevs.com/pdf/DCDC/PX3544.pdf
Reply With Quote
  #2  
Old 06-07-2015, 09:18 PM
TiN's Avatar
TiN TiN is offline
Volt-Nut :)
 
Join Date: Jan 2010
Location: Taipei
Posts: 1,458
Send a message via ICQ to TiN Send a message via Skype™ to TiN
Default

Pin 15
__________________
xDevs.com
Reply With Quote
  #3  
Old 06-08-2015, 12:44 PM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default

Quote:
Originally Posted by TiN View Post
Pin 15
wow you are amazing, thank you so much. I cant figure out how to tell that from the datasheet.
Reply With Quote
  #4  
Old 06-17-2015, 01:09 AM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default

Quote:
Originally Posted by TiN View Post
Pin 15




I finally finished my first epower mod but I think I messed up.

I changed the dip switches on the board to "off" "on" "on" "on" and for some reason it booted at 1.64v around.

I will just use evbot for voltage from now on.

My question is do you think 1.65v would damage the gpu on the 8800 gts. The card boots up fine but I get 3 really thick vertical lines. I get to windows boot screen but usually it just gets stuck.

All my resistances are fine and when I apply 1.2v with evbot the epower card gets 1.245v and the actual gpu gets 1.244v, so I think I did a really good job.

If booting at 1.65v damaged it I will just grab another for $20 and try again.

Last edited by strongisland1; 06-17-2015 at 01:16 AM.
Reply With Quote
  #5  
Old 06-17-2015, 09:32 AM
TiN's Avatar
TiN TiN is offline
Volt-Nut :)
 
Join Date: Jan 2010
Location: Taipei
Posts: 1,458
Send a message via ICQ to TiN Send a message via Skype™ to TiN
Default

Was the card fine before? Artifacts usually broken balls on memory or GPU.
1.65V should be fine if you have cooler on it.

Guide for EPOWER settings.
__________________
xDevs.com
Reply With Quote
  #6  
Old 06-17-2015, 09:48 AM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default

Quote:
Originally Posted by TiN View Post
Was the card fine before? Artifacts usually broken balls on memory or GPU.
1.65V should be fine if you have cooler on it.

Guide for EPOWER settings.
ya i got the card for $25 on ebay, i tested on air cooler before i started mod and it was ok.

i used the guide you have linked above but that dip switch guide is off because the settings for 1.26v is really like 1.65v.

but i will just use evbot from now on so im not upset.

i cut the vrm section off the original cooler and used that to try and boot up for testing but got 3 very large vertical stripes.

it sucks because the voltage drop is like nothing, the connection seems great.

while it sits at the windows boot logo i was able to measure voltage.

so you dont think its the 1.65v that did it. I wonder what I did wrong. memory was fine before starting and all resistances are ok. i never attached a pot so i dont think i broke any balls on gpu.

thanks for your replies
Reply With Quote
  #7  
Old 06-17-2015, 10:29 AM
TiN's Avatar
TiN TiN is offline
Volt-Nut :)
 
Join Date: Jan 2010
Location: Taipei
Posts: 1,458
Send a message via ICQ to TiN Send a message via Skype™ to TiN
Default

It's not off, it's mirror. Don't go after silkscreen
__________________
xDevs.com
Reply With Quote
  #8  
Old 06-17-2015, 11:23 AM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default

Quote:
Originally Posted by TiN View Post
It's not off, it's mirror. Don't go after silkscreen
ya i dont know, i am probably confused. all i know is i set it to - off on on on and that was 1.65v instead of 1.26v that the dip switch guide on the link above says.

should i just try another card, is there anything i could try.

sometimes its easy to follow a guide but its the trouble shooting thats hard. still have a lot to learn.

maybe i should try baking it.
Reply With Quote
  #9  
Old 06-17-2015, 01:36 PM
strongisland1 strongisland1 is offline
Sub-Zero
 
Join Date: Jul 2013
Posts: 145
Default

when i reinstalled the modified stock cooler i replaced the thermal pads and i think they were too thick.
I guess i damaged the memory chips when tightening. only thing i can think of.

i cant believe after all the work i killed it with something so stupid

either way these epower boards are so much fun. im so happy i got a couple. have a lot of cards to try on my list. thanks so much for releasing them

i know there was no load yet but a 2mv drop from power board to gpu is great right?

Last edited by strongisland1; 06-17-2015 at 01:38 PM.
Reply With Quote
  #10  
Old 06-23-2015, 07:09 PM
steponz steponz is offline
PURE
 
Join Date: Dec 2009
Posts: 340
Default

Sorry to hear bro... just imagine if you did it on the titan..

Tin.. great guide..
__________________


I love eraser..................
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:45 AM.

Contact Us - www.kingpincooling.com - Archive - Top
Powered by vBulletin® Version 3.8.3 Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.