Asus A7N8X mod

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03-05-2003, 03:39 PM
sysfailur

Heh my 3rd resolder worked great :P *giggle*

Sadly I didn't have any luck with more VDD... geuss I need another stick of Kingmax. I have a 250mhz + stick of kingston (hit 253mhz on kd7 w/ a ratio @ only 3.05V)...

So if I had another stick of that I am sure that 250mhz could be hittable. My XMS is maxing @ 240mhz 2.5-4-4-7 sandra, 236mhz 2-3-3-6 sandra/pc mark 2k2, 233mhz 2-3-3-6 anything but 3D, and my setup seems to be able to do 3D @ 225mhz.

Anyway, I did have some success this time... had more time to play with than last time I used my setup. I took the radiator off which was heating up the water, rather than keeping it chilled (duh). I just replaced a waterblock where the radiator was cus I didn't have a tube joiner. What I accomplished was a new record hexus pifast. This is 233x11 as the picture says. I then ran @ 236mhz (the next step up) and I got to the 3rd sequence and it locked up my comp. So thanks alot Asus for NOT putting in 235mhz... I could've picked that and I bet it would've gone all the way through if I let it cool off for a minute.

EDIT: The pifast instability is a CPU issue, not a memory issue. It's not running cold enough.

http://www.maximumoc.com/img/hardwar...5738pifast.jpg
03-05-2003, 08:31 PM
phobix

1 Attachment(s)

Quote:

Originally posted by sysfailur
Heh my 3rd resolder worked great :P *giggle*

Sadly I didn't have any luck with more VDD... geuss I need another stick of Kingmax. I have a 250mhz + stick of kingston (hit 253mhz on kd7 w/ a ratio @ only 3.05V)...

So if I had another stick of that I am sure that 250mhz could be hittable. My XMS is maxing @ 240mhz 2.5-4-4-7 sandra, 236mhz 2-3-3-6 sandra/pc mark 2k2, 233mhz 2-3-3-6 anything but 3D, and my setup seems to be able to do 3D @ 225mhz.

Anyway, I did have some success this time... had more time to play with than last time I used my setup. I took the radiator off which was heating up the water, rather than keeping it chilled (duh). I just replaced a waterblock where the radiator was cus I didn't have a tube joiner. What I accomplished was a new record hexus pifast. This is 233x11 as the picture says. I then ran @ 236mhz (the next step up) and I got to the 3rd sequence and it locked up my comp. So thanks alot Asus for NOT putting in 235mhz... I could've picked that and I bet it would've gone all the way through if I let it cool off for a minute.

EDIT: The pifast instability is a CPU issue, not a memory issue. It's not running cold enough.

That's pretty dam sweet sysfailur :D keep pushing it :D

I am surprised at how stable this board is, I mean everything is being pushed and the thing just keeps begging for more :D

So far I am at 220fsb using 1.888vdd, still air cooled on the NB with a ghetto fan on the SB with no heat-sink :( I am in the process of building a chipset waterblock and am waiting for the epoxy to cure. My hopes are to get some stability @ 230fsb but in dual channel mode. I noticed that the +5v rail drops when you drop a second stick of DDR in @ 220fsb, btw I measured this drop at the foot of the 'Fets. It looks like I am going to need mod my 550watt enermax with an adjustable pot because the +5v rail drop at 220 with 2 sticks of Ram is far too severe and is causing instability. With 1 stick I am rock stable, so far so good, it has been a lot of fun to follow this thread. Cheers!
03-06-2003, 08:14 AM
HMB

Quote:

Originally posted by phobix
The solder size is good, perhaps the iron temperature is not hot enough. My iron was fairly hot when I perfomed the soldering and unfortunatley my iron lacks a temperature control :( One additonal note, after the wire has been coated with solder, make sure you let it harden for 20-30 seconds before attempting to solder it to the SMD. At least you are practicing on a crap board first, so worse case scenario there is no harm done.. :) Good luck!

Well im gonna go with the conductive glue for the VDD-mod. Dont wanna risk my board. But I will make new vcore and vmem mod for the board since i accidentally chopped of the vmem pomona grabber in my enermax 12cm fan :D Gonna connect all vmods to groundpin on fanconnectors on the motherboard, its gonna be some good looking mods here! (Yeah baby yeaaaaaaah! :banana: ) Oh, i was thinking about buying me some fancy twinmos pc 3700 modules as well, will have to see what my budget is :toast:

Edit: Did i say i am getting a prometeia soon also? :banana:
03-06-2003, 08:17 AM
phobix

Quote:

Originally posted by HMB
Well im gonna go with the conductive glue for the VDD-mod. Dont wanna risk my board. But I will make new vcore and vmem mod for the board since i accidentally chopped of the vmem pomona grabber in my enermax 12cm fan :D Gonna connect all vmods to groundpin on fanconnectors on the motherboard, its gonna be some good looking mods here! (Yeah baby yeaaaaaaah! :banana: ) Oh, i was thinking about buying me some fancy twinmos pc 3700 modules as well, will have to see what my budget is :toast:

Keep us posted on the results!!!! I can't wait to see what the board does after :D :banana:
03-06-2003, 08:19 AM
HMB

Quote:

Originally posted by phobix
Keep us posted on the results!!!! I can't wait to see what the board does after :D :banana:

Hehe, conductive glue will arrive tomorrow, i will keep u guys posted ;) How could i not? :D
03-06-2003, 12:26 PM
nikhsub1

There is a NEWLY discovered pin to do the VDD MOD!!!!!!!!!!! Discovered by vmsrules you can see his pic here: http://webpages.charter.net/darrylh/vddmod.jpg and I have detailed it here:

http://www.netbetty.com/H20/asus/newvddpin.jpg
03-06-2003, 12:55 PM
sysfailur

OOOooo!!! That's spiffy. I wonder how he found that out? Did he accidentally solder onto the pin of the chip by accident when aiming for the SMD? :P
03-06-2003, 09:35 PM
zacharyaus

hey nikhsub1,
Do you think he's using the same amount of ohm's as the other mod?
03-06-2003, 10:32 PM
sysfailur

Quote:

Originally posted by zacharyaus
hey nikhsub1,
Do you think he's using the same amount of ohm's as the other mod?

Yes. And welcome to the forums!
03-07-2003, 07:38 AM
HMB

Hmm, seems to be too thin legs to attach pomonagrabbers to... Though u dont have to worry about overheating the darn SMD :)
03-07-2003, 09:38 AM
HMB

OK, two pomonagrabber-look-a-likes have been glued to wire. Im replacing my old vmem and vcore mod with new and improved ones :) Glue seems fine, its like arctic silver epoxy glue, same caracteristics, same colour :)

Edit: I checked out that darn IC-leg for VDD-mod. DAMN its tiny! :eek:
03-07-2003, 10:29 AM
sysfailur

Quote:

Originally posted by HMB
OK, two pomonagrabber-look-a-likes have been glued to wire. Im replacing my old vmem and vcore mod with new and improved ones :) Glue seems fine, its like arctic silver epoxy glue, same caracteristics, same colour :)

Edit: I checked out that darn IC-leg for VDD-mod. DAMN its tiny! :eek:

Haha yeah that thing is uber tiny! :P
03-07-2003, 11:02 AM
HMB

Quote:

Originally posted by sysfailur
Haha yeah that thing is uber tiny! :P

Hey! You forgot the two dots over the u, it should be übertiny! :banana: :rolleyes: Yeah im bored waiting for the glue to harden, can u blame me? :cool:
03-07-2003, 04:11 PM
zacharyaus

Quote:

Yes. And welcome to the forums!

thanks! :D
03-07-2003, 07:04 PM
King_Tweaker

I can't find any UK stores with all these things needed for these mods.

Does anyone know of any that actually has stock of what is needed for this mod.

195~ is the best I can get out of my 2 * 256 of XMS 3200 C2. I want around 208 * 12.5 to get this 2500+ to 2600mhz.

So what I will need is

Soldering iron (any special type?, yes I am a noob modder)
solder (any special type, thickness?)

the rest is a bit of a mystery
is it 1 megaohm resistor and 1 megaohm variable resistor (potentiometer)

Thanks guys!!!!!!!

Oh and is it really that hard to get grabbers to work because I would rather use those so if I did a bad mod then I could just clip em off.
03-07-2003, 09:31 PM
sysfailur

Get as small of a soldering tip as possible. Like a micro tip. Pencil tip isn't small enough (although I use it--I'll be getting a micro soon).

As for solder, I just got some standard stuff... it's pretty thin in thickness, and you'd probably want to get something smaller. Just get standard electronics solder.

What you'll need for resistors is 1 standard 1 MegaOhm resistor. Then you'll need a 1 MegaOhm variable resistor as well. You'll solder the standard 1 MegaOhm resisotr to one of the legs of the variable resistor, let's say the middle, then you'd connect more wire to the other end of the standard resistor that you just soldered onto the variable resistor's middle pin. Then, choose one of the other 2 pins on the variable resistor and solder some wire to that. Then you shoul have 2 wires with exposed copper on the ends. Go ahead and solder 1 connection to ground, and solder the other to the pin.

NOTE: Before you solder it onto your motherboard, check it's reistance and make sure you're @ 2 MegaOhm total resistance! That is key, because if you're @ 1 MegaOhm (if the VR is turned the wrong way) you'll have a chispet voltage of 1.9v and you may not want it that high.

And I can't vouche for grabbers.. I've never used em.

Good luck!
03-08-2003, 12:19 AM
HMB

OK, its done :cool: Priming at 10x220MHz now, Vmem at 2.9V, Vcore 2.05V, VDD at 1.8 or so. Gonna have to see what i can get this mobo to run at :) Ohh the glue seems to work fine. :toast:

Edit: Im still running my ram @ 2-2-2-5 Timings, go TwinMOS! :D
03-08-2003, 12:47 AM
zacharyaus

this mod is bad-ass! but i'm wondering what everyone is using to cool they're NB's
03-08-2003, 01:55 AM
HMB

Quote:

Originally posted by zacharyaus
this mod is bad-ass! but i'm wondering what everyone is using to cool they're NB's

Currently i use the standard heatsink, ive put a 40mm fan on top of it. Of course i have put some arctic silver between chipset+heatsink.
03-08-2003, 02:55 AM
HMB

I've removed my vdd-mod now, cable just wouldnt sit tight, will fix it though when i get my prometeia. Its kinda hard to fix the mod while mobo and everything is still in the computer. Much easier to fix when mobo is out of the box. Ah well :)
03-08-2003, 07:24 AM
King_Tweaker

Thanks guys,

Any idea where I can get all this soldering gear on a UK store, or a store that ships here.
03-08-2003, 10:41 AM
centaur

hi! :)

i have a littel problem with FSBs over 213MHz.
i early get screenflashes and sometimes my system crashes. the Vdd is @ 1,9V (with 1MOhm)
should i go higher with Vdd? but i wont lose another a7n8x ;)
03-08-2003, 11:00 AM
phobix

Quote:

Originally posted by centaur
hi! :)

i have a littel problem with FSBs over 213MHz.
i early get screenflashes and sometimes my system crashes. the Vdd is @ 1,9V (with 1MOhm)
should i go higher with Vdd? but i wont lose another a7n8x ;)

Better put a WB on the NB, this is excessive heat causing this problem.
03-08-2003, 11:30 AM
centaur

my NB is just cooled by zalman NB cooler and a delta black label :)
the delta also cool my big mosfet-cooler
03-08-2003, 06:23 PM
PMM

Quote:

Originally posted by nikhsub1
[B]There is a NEWLY discovered pin to do the VDD MOD!!!!!!!!!!! Discovered by vmsrules

:confused: Erm don't think so its mentioned in my Orginal post
Page 1..post 1!!!! Both points are the same as that side of the
SMD links to pin 11.

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