Dothan overclocking thread

[kristos]

anyone got a nice easy mod with pics? Im after adjustability so removing the resistor is not for me

macci posted this earlier in the thread:



I checked the code on the resistor, it's supposed to be a 50k but you may want to double check.

kyosen used a 50k for all 3 mods but you used a 100k for the Vdimm mod. Is a 100k better? and if so, why is it better?

503 means 50 with 3 zero's right? but what's the 420 stand for?

Re install the processor. I had the same problem. Make sure you turn the screw on the CPU socket all the way to the locked position. It gets firm at half way.

This is just embarrasing, I completely forgot to lock down the processor via the screw

After fastening the screw, it all worked nicely... for like half an hour
Then I booted and I noticed setFSB and clockgen not reading out the values.
I rebooted hoping that would fix it but I was greeted with a single long beep that was beeing repeated all the time.
After uninstalling the board I noticed a trace blew.

[BitpowerPM]

I checked the code on the resistor, it's supposed to be a 50k but you may want to double check.

kyosen used a 50k for all 3 mods but you used a 100k for the Vdimm mod. Is a 100k better? and if so, why is it better?
.

Are there any pictures of a VDIMM Mod on the AOpen motherboard?

cu, BitpowerPM

[LuCkY!]

Just for info... in germany is a test of this barebone with 855GME for dothan :-)
http://www.de.tomshardware.com/first...223/index.html
they only get 2.4 ghz newbies *g* (hmm keh, stock barebone cooling)

[Naughtyboy]

Just got my board...so a Dothan 1.6 / Aopen855 / 2x512mb TCCD / X800XT PE(when I get it back from RMA) ....will be housing in my rigg very soon.

/me is a happy camper

ATM hunting for vmods ...!!!!

[charlie]

Yeah!!!
I got my 2.0 (755 SL7EM today) Quite a good deal for $200, hehehehe...........

Now I've got my SWEEEEEEEEEEEEEEET 1.7 which goes 2.7 @ 1.59v AND the 2.0 with the mighty "20" MULTI for "tickling" 3gHz......

C

[kristos]

@ kyosen / k-ohashi :

I couldn't PM or e-mail you so I hope you check this thread and can answer these questions:

1) What is that program "maro"? What does it do?
2) Like BitpowerPM asked: Did you find out how to do some other Vmods like Vdimm yet?
3) Could you send me a copy of a the japanese superpi? I found a rather odd version: it has the heading in japanese symbols but the iterations consist of markings, not off japanese...

[eva2000]

Well the board has issues with CPU-Z at higher fsb's so i have had all sorts of issues running clockgen. I also can memtest for hrs at ddr500 but XP seems a no go. fastest 1M pi is 31secs upto now around 2.5GHZ+ so this is pretty damn fast. I will probably have to do a Vcore mod..anyone got a nice easy mod with pics? Im after adjustability so removing the resistor is not for me

Im still workin on debugging what i have here, for now i have disabled everything in bios and im using a pci vid card and 3com pci nic as i know the bus is at 33.3.
Seems the cpu just locks with cpu-z which points to an access violation maybe...

More as i get it.

wow you sure love mobile cpu stuff

[kyosen]

@ kyosen / k-ohashi :

I couldn't PM or e-mail you so I hope you check this thread and can answer these questions:

1) What is that program "maro"? What does it do?
2) Like BitpowerPM asked: Did you find out how to do some other Vmods like Vdimm yet?
3) Could you send me a copy of a the japanese superpi? I found a rather odd version: it has the heading in japanese symbols but the iterations consist of markings, not off japanese...

1) "maro" is a small program for occupying system memory...yes for SuperPI tweaking.
but MAXMEM is almost dominant, so "maro" is my talisman rather than tweak utility

2) No...now I'm busy at Socket939 ...but planning 2004 Final LN2 trial this weekend

3) Here:
http://www.vector.co.jp/download/fil.../ff022882.html

[Mace]

31.5K in 3D Mark '01

Merry X-Mas

[sky]

31.5K in 3D Mark '01

Merry X-Mas

very nice numbers, pretty low vcore for that cpu at those clocks and one awesome memoverclock on the 6800! 1400 is sick! congratz

[kristos]

1) "maro" is a small program for occupying system memory...yes for SuperPI tweaking.
but MAXMEM is almost dominant, so "maro" is my talisman rather than tweak utility

2) No...now I'm busy at Socket939 ...but planning 2004 Final LN2 trial this weekend

3) Here:
http://www.vector.co.jp/download/fil.../ff022882.html

thx man

but..., I'm going to be a pain in the ass a little longer

do you have a link for maro?
when you speak of MAXMEM; is it the maxmem 104mb tweak or is it the maxmem program?



sorry for all the questions


kristos

[death metal]

bigtoe, tnx for posting the results. i am going to get mine by january =)...woot...

[BitpowerPM]

My best result: Super Pi 1M @ 2,55 GHz (15x170 MHz) 4:3 RAM @ DDR453 2-3-2-5-1 at least 30 seconds.
http://home.htp-tel.de/wknappe/dotha...han-at-max.png
Unfortunately my RAM gets unstable at higher clockrates on 3,05 Volt VDIMM.
But I am happy with this result.

If you understand german, look at this thread:
http://www.computerbase.de/forum/sho...9&page=4&pp=20


Merry Christmas from Germany. Really nice community here.

cu, Simon

[Shahid_2dk]

Awesome

but where can you get the DFI board?

here in Europe?

[BitpowerPM]

Maybe look in some german shop for selling to Denmark:
http://www.geizhals.at/eu/a126664.html

cu, BitpowerPM

[Naughtyboy]

So I´m up´n running....ATM this is what I got. SuperPI stable.




Anybody with Aopen mobo that can verify the pin mod working....because I´m stuck here...can´t go past 1.34vcore wich is 1.32v actuall and 1.305v under load.

Also any pics of measurement points for vdimm on the Aopen board..??

[BitpowerPM]

Yes the Pin Mod (VID4 to VSS) for CPU is working.
Measurement for VDIMM look in the attachment.

cu, Simon

[MaSell]

1M was 32secs with these settings, the rest are valid for this config. 150x16 with ram at 200fsb.

someone with better system?

[Naughtyboy]

Yes the Pin Mod (VID4 to VSS) for CPU is working.
Measurement for VDIMM look in the attachment.

cu, Simon

Thnx alot for the help/pic Bitpower..much apreciated.
If I´m not toally braindead ...that is the vdimm mod for Aopen in the pic, right ??

Any pics of vagp/vchip mod..??

[charlie]

Naughtyboy,
Yeah, do the VID4 to VSS mod and that should give you an easy 16 x 160 = 2560mHz...
What memory are you running?

C

[BitpowerPM]

Thnx alot for the help/pic Bitpower..much apreciated.
If I´m not toally braindead ...that is the vdimm mod for Aopen in the pic, right

Yes, but there is another easy voltmod, too.
VDIMM directly attached to the 3,3 Volt of the Power Supply.

cu, Simon

[Naughtyboy]

Thnx alot guys...

Charlie: I´m running 2x512mb TCCD..that will do 280ish with decent timings and 2.9v.
I´ll do the vid4 mod and just hope for the best

Bitpower: I´m not sure about the 3,3->vdimm mod...haven´t had the opurtunity to feed my sticks with above 2.9 so I don´t know how they will respond to that kind of voltage. So the vdimm mod in the first pic feel a little more secure....doesn´t look to hard, shouldn´t be a problem even thou my soldering skills are moderate.



Another thing I noticed, there is some "thingy" going on with the agp/pci locks.
When I get above 135fsb and use 66/33 lock...the board/cpu will default back to 100x16 and everything feels veeery slow, takes ages to load windows. But if I set 75/37 (I think it is) when I go above 135fsb, everything is just peachy...works like a charm.

[BitpowerPM]

66/33 fix seems to be not working. 75/37,5 mhz fix works better.

You can build a voltage regulator from the 5 volt to v-dimm like in the second vdimm mod.
Look at the circuitplan. I do it with a 2 kOhm trimmer and a 220 Ohm resistor.

TwinMOS TwiSTER pro TCCD at 3,1 Volt, but no higher clockrates possibel, unfortunately.

cu, Simon

[Shahid_2dk]

Maybe look in some german shop for selling to Denmark:
http://www.geizhals.at/eu/a126664.html

cu, BitpowerPM

Hehe, thx, German shops always save us here in DK

[Coolzero2k1]

Hehe, thx, German shops always save us here in DK

@ Shahid Mahmood Order the board at mix-computer it's a very good shop, I often order my hardware there!