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Eventually someone would ask this, so here it is :D
http://mbnet.fi/elixir/AS8/AS8-VDDR.jpg
Solder 10ohm variable or fixed resistor between R196 resistor side (closer to Winbond) and ground. After mod, vddr voltage is ~ -0.04V from psu 3.3V rail, so you have to raise your psu 3.3V rail to have higher vddr voltage than original 3.28V.
And yes, VTT voltage will stay perfectly 1/2 of VDDR voltage, so no further modding needed ;)
Have-you more pictures and measures please ?
i search one vmod for KV8-MAX3 ,and it's probably same of your mod :D
http://www.xtremesystems.org/forums/...threadid=38452
No additional pics, sorry :(
The board broke down, and I only had it for couple days :mad:
Take a multimeter, and search resistor around the Winbond chip, which gives you ~ 680ohm reading. Then solder a 10ohm variable or fixed resistor between the other side of resistor, and ground.
You've actually grounded the feedback input on the winbond?
That is a 1K Pot.. Is it supposed to be 1K or 10 ohm??
It really is 1k ohm vrQuote:
Originally posted by hag6br
That is a 1K Pot.. Is it supposed to be 1K or 10 ohm??
I didnt have any other vr at the moment, so I had to use that 1k one :D PITA job to get it ajusted to 10ohms :rolleyes:
Ok.. Just wondering.. Getting ready to figure out mods for The Abit AV8 and it uses Same chip :DQuote:
Originally posted by The Stilt
It really is 1k ohm vr
I didnt have any other vr at the moment, so I had to use that 1k one :D PITA job to get it ajusted to 10ohms :rolleyes:
Quote:
Originally posted by hag6br
Ok.. Just wondering.. Getting ready to figure out mods for The Abit AV8 and it uses Same chip :D
The KV8-MAX3 use the same chip and the mod doesn't work on it, thus i don't know if it work well on the AS8, i think not
stilt, a reading point for v-dimm voltage??? bios seems to block reading at 3,5v....
Try the upper leg of the large mosfet just above the green wire in the picture.
That point works, i turned up my DDR booster while holding a multi meter on it. DDR booster says 2.9 meter say 3.0
Thanks crotale.
Quote:
Originally Posted by gclg2000
have you tried above 3.5???
Looks like this mod is exactly the same as the AI7.
I thought I heard Hipro say it was like the IC7 boards where a resistor needed to be removed?
Yes, the vdimm mod for this board is the same as IC7. Remove R196 and solder a 200ohms trimmer. Raise resistance for more vdimm.Quote:
Originally Posted by {PMS}fishy
That is not what the first post says at all.Quote:
Originally Posted by Malves
There is no mention of removing any resistor, and it states a 10ohm fixed resistor.
Ill find out in about an hour if Fed-Ex ever shows up.
I couldn't care less, bro. :rolleyes:Quote:
Originally Posted by {PMS}fishy
Great attitude, thanks a ton.Quote:
Originally Posted by Malves
The MOD listed up top does work, just like on an AI7.
Next time, keep your obvious observations for yourself.
There are 2 ways to do the vdimm mod. One that The Stilt posted that is dependant on your vio, and one that is just like on the IC7, that you have more control over.
So why couldn't you have just said that the first time? I don;t understand the need for the attitude. It was a simple question, and I was just looking for a simple answer.Quote:
Originally Posted by Malves
Stupid question but what is my vio? Just checking before I do one of the two mods talked about here.Quote:
The Stilt posted that is dependant on your vio
vio=3.3v rail. Not a stupid question, bro.;)
@fishy,
Go back to your post and tell me if you were really asking me something. That really doesn't look like a question to me. It looks like someone trying to be a smartass. Sorry, bro, but that's the way I took it.
so um dont bash me for asking this, but what does this do? Does it fix vdimm droop?
No, that's just a vdimm mod. To put more voltage thru the RAM.
cant my booster do that?
Yes, if it is compatible with this board.
ill give it a go this weekend, where do i measure vdimm?
Pin 7 on the DIMM slot.Quote:
Originally Posted by sin0822
Left leg of one of those FETs right above R196, shown in the picture.Quote:
Originally Posted by sin0822
http://xtremesystems.org/forums/show...998#post724998Quote:
Originally Posted by sin0822
You must have read carefully ;)
I tried doing this and I messed up (just like i did with the VDroop mod lol). I had some solder on the tip of my iron and it dropped on the winbond chip legs, will a desoldering iron fix this? I tried turning the board on and the LED shows 2 and then it shows F. I've tried using a soldeirng iron and a little chisel sort of thing to get some of it off and it helped, but theres still some on there. Any tips? And if someone is willing to fix the board I can ship it out :-D
um try to liquify it, the ic legs should be able to take a little heat. Solder ussually sticks to the solder on the iron. anyway i measured the vdimmw ith my booster in, al the way upto 3.95v, and the voltage is more stable with the booster and it is totaly responsive.
i did try liquifying it and it did help get some of it off but theres still some there :-/
Go to a Radio Shack store and look for desoldering braid. Put in on the solder on the board and put the iron tip on top of it to heat it up. It will suck the solder and clean the legs.;)
And this should probably fix the whole issue? or is it like 50/50? I know desoldering braid isn't much, like $3? But I'm just not ready to waste another like 2-3 hours trying to fix it if it won't work. :-P
10 min and you can take all that soldering from the legs.:D
So far it took most of it off but theres still some there so I'm not getting any dice -_-. I dont know if it has to do with being a 25 watt Iron, but I don't think thats the case... I have a broken AS8, is there anyone I could ship both boards out to and maybe they can put the winbond chip from the bad AS8 over to the new one (i.e. a Rework)? Or is there a place I can ship it out to to have it done professionally but under 50 dollars? Being 16 and no job sucks and I'll have is 50 bucks so if someones willing to fix it I can ship it out.
oh yeah this is your second board, that sucks man,.