Asus A7N8X mod

[nikhsub1]

I attempted to solder, man is that small. I quit before i ruined my board... Will try later.

[Pjotr]

Originally posted by PMM
I will do my best to explain in a paint special no camera at mo
give us a bit and I will post later.

Please note the IC is small my micro grabbers were to big its
a small IC as such you need to either solder to a minature
SMD resistor or be bery skilled.

Managed with some 3+volts to the ram to get into windows
at 230fsb managed a Hoda shot and sandra ram shot however
it did reboot after a while I think this is heat related issue if I give
computer a while to cool it goes in for a while but after a bit
reboots....But has yet to trash harddrive which it did before
at 215 onwards.

pics ....>

Can I ask a favour from anyone with a FSB >> 200 MHz and a good overclock on AXP, say 2.2 GHz+, to make a SETI@Home benchmark run, please? SETI will end in a few months and there are updates being done to the benchmarking pages at team TLC. The benchmark run should take approx 2 hours, I'd like to see some AXP systems as no 1. :-)

Client here:

ftp://ftp.cdrom.com/pub/setiathome/s...nt-cmdline.exe

All info here:

http://www.teamlambchop.com/bench/benchfile.htm

[Jeff]

Here is our team's benchmark page. Currently, there are a couple nForce2 boards at the top.

http://www.users.globalnet.co.uk/~mu.../benchmark.htm

[Pjotr]

Originally posted by Jeff
Here is our team's benchmark page. Currently, there are a couple nForce2 boards at the top.

http://www.users.globalnet.co.uk/~mu.../benchmark.htm

Are those done using the TLC benchmarking WU?

[Jeff]

Don't believe it's that exact work unit. This one is also a .417 angle unit so it should be ok to compare the two charts.

[sysfailur]

Originally posted by impulse
Just a little info for ya. Just finished measuring volts. With the way i have it set up now, If I turn the pot all the way down I get 1.75 volts exactly. If i crank it all the way i get 1.91 exactly. Just a little info for ya's

Absolutely wonderful. That's what I wanted to know

Great job! I can't wait! My stuff should be coming in the mail on Wednesday

[PMM]

Originally posted by Pjotr
Are those done using the TLC benchmarking WU?

Its our own work unit 0.417ar and is comparable to TLC's
now't in it time wise.

Don't think TLC will be updating there benchies anytime soon
April2002 was last update and it was 6 to 8 months the one
before that.

[Pjotr]

Originally posted by PMM
Its our own work unit 0.417ar and is comparable to TLC's
now't in it time wise.

Don't think TLC will be updating there benchies anytime soon
April2002 was last update and it was 6 to 8 months the one
before that.

Read the benchmark news, there will be an update shortly.

[impulse]

Just curious, anyone else try this out yet?

[NUNEZ1980]

hell yeah, I can't wait to try it, but since I don't have any soldiring skills, I just my used hot glue with a gun and glue it while making the contact,

guys do you know how can I tell how, if the glue is nonconductive?, on the multi, the arrow and the / is for that? thx

[EnormuS]

@Impulse or PMM

I am looking to buy the resistors needed for the VDD mod you found. The question is I can purchase either 1/4 watt or 1/2 watt resistors. Which one do you recommend / use?

Thanks,
-E

[Onis]

Aah, it seems I messed up the mod. The solder pad of the SMD resistor went off... "!¤#""# If any of you helpful guys could look the value of the resistor (R631) I would be most grateful!

Be careful when soldering to SMD resistors, I think it's better to try solder thin wire to IC directly and from there to pot + extra res.

[PMM]

I'm using 1/4 watt but it does not matter since you are only
earthing the remaining voltage after the SMD resistors.

**On that topic I am not sure what values are there to small
to read but from the datasheet I was using and initial values I was getting I'm sure its 200KOhms need someone with good
eyes and a magnifying glass.

If your solding onto the SMD I suggest soldering the wire first
to get a blob of solder on there then when your ready apply
soldering iron in way that heats the wire mainly to make solder melt and bond to smd - try to get a brand of low temp solder
if doing Vmods makes things a little easier.

Use the finest soldering tip you can find and if you can....
invest in a Gas Soldering Iron trust me makes live a lot easier

[Onis]

PMM: Thank you a million !!!! I'll buy you a beer if you are nearby Finland It is working again. I replaced SMD it with a 150k.

But I checked the application datasheet and I think better way is to modify VREF voltage (pin 7). VREF is dropped from 3.3 V with resistors R628 and R630 (probably 124ohm and 150ohm, EIA-96 markings 10A and 18A). Variable resistor parallel with R628 should raise the voltage.

I'll do some testing now and report here.

EDIT: no success yet... (VREF mod) first it looked good, voltage raised, but then it dropped to 1,5v. Still investigating

[veeman]

Could you tell me exactly where you soldered the 1mohm resistor to? it's hard to tell in the picyou posted i just wanna make sure i know before i try this i can't go any higher than 180fsb right now and would love to go higher.And where did you put the ground as well ?

[impulse]

I agree veeman, it is very hard to see. There is a tiny smt resistor near the southbridge between the agp and first pci slot. I soldered the resistor to the top left contact of the smt. Look at PMMs sketch for a better understanding of what exact smt resistor to solder. You need to solder onto the contact that is facing the pci slot. I grounded mine on a motherboard screw hole. You can ground it to the ground on a fan header.
Sys have you done the mod yet?

[gimmpy]

i tried this mod with great success. i does work. my max 3dmarkfsb went from 211 to 222. here is my 3d mark http://service.futuremark.com/compare?2k1=5717796
if there is anyone with a high fsb, over 211, and does 3d mark i would be interested in discussing the differences in scoring at high fsb. thanks

[sysfailur]

Sorry guys I've been unable to do this mod yet. I am finally getting to it (hopefully) tonight. I've had too many things to do.

[sysfailur]

Originally posted by sysfailur
Sorry guys I've been unable to do this mod yet. I am finally getting to it (hopefully) tonight. I've had too many things to do.

Well I've done it. And it works perfect. I'm @ 1.9v for now, as I'm working on trouble shooting the board itself.... I'm not really sure what's the problem but I am having problems.

I figured out how to fix it if your bios says your memory is @ 50mhz though. You boot up once you get the prob, you hit the power switch on the psu really fast back and forth and when it boots up the next time you're A-OK.

I may just end up buying another one of these boards for troubleshooting (and to build another rig).

Now here's a question... for let's say 220mhz fsb, what kinda voltage will I need on the chipset? I've got 3.15V on the ram to be safe. @ 1.80v I think I was at 220mhz fsb didn't work.. corrupted windows. So would 1.9v do it? I will crank it up to the max if need be... what are you guys using?

[gimmpy]

sys i run at 220-222 at 1.85 on the chipset and that is in dual mode ram is at 3.1 xms3500 cpu at 1.95. everything works good at this speed onboard audio and lan.

[sysfailur]

I do believe my board is borked then. My audio is screwed up even @ normal speeds, I can't boot into windows @ 200mhz+.

I've been playing with it for a while now, and @ stock, sound is totally messed up... all garbled. So I disabled that, but then I can't get into windows at good speeds. I've tried every voltage combination you can think of. I've also tried now 3 bios's.

Oh well, I geuss this means time to RMA it :P Thankfully I have my volt mods all prepped so I can just solder em on quickly on the next board! While I'm waiting for that I'll work on modding my 4600 and I'll test it on my KD7. Mmmm sounds like fun.

[gimmpy]

sys, some guys over at the nforce forum said that by replacing the cmos battery all the instabilities and problems went away! possibly a bad batch of batteries? give it a try and let me know

[HMB]

Can u solder on the resistor(s) or use pomona grabbers on the IC controlling VDD? If u could, what leg and which IC?

[luihed]

I have a crystal orb on my NB and would like to know if this is enough cooling to vdd mod my chipset to 1.85v. Also whats a good way of monitoring the temp of my NB using a hardcano temp guage? Thinking of taking off a lil of that black stuff aroung the chip and then putting a probe there, is this a good idea? Lastly, whats a reasonable temp for my NB and what threshold should I be aware of? thanks dudes......

[sysfailur]

Originally posted by gimmpy
sys, some guys over at the nforce forum said that by replacing the cmos battery all the instabilities and problems went away! possibly a bad batch of batteries? give it a try and let me know

http://www.xtremesystems.org/forums/...9181#post99181