ok hipro. As soon i flashed my p4c800... i will give it a go! defenitly
ok hipro. As soon i flashed my p4c800... i will give it a go! defenitly
hipro5, looks that you are even smarter than guys that work for Asus :D
So, who has already modded it (except hipro5)? Would be great to see the results :D
Quote:
Originally Posted by celemine1Gig
Thanks, this is very useful :)
hehe, hipro5, u r the legend!
If anybody tries that VCCA with 1.9v let us know.
i had mine to 185 :cool:Quote:
Originally Posted by DaWaN
http://valid.x86-secret.com/show_oc.php?id=49621
Awesome work as always Hipro, you are a real resource for our community, thankyou!!!
G
3.2 is not that hard to find, well i found 3.16 with 1% tolerance and 3.3 with 5%.Quote:
Originally Posted by hipro5
It should be ok to stay between 3.1 and 3.3k.
I dont understand your calculation, could you explain it?
I meant it that way, 2 resistors parallel or a 5k Poti.
Is my guess that a higher resistance gives a higher VCCA voltage correct?
In parallel the resistance goes like Rtot = (Ra x Rb) / (Ra + Rb) (or 1/Rtot = 1/Ra + 1/Rb) and in series Rtot = Ra + Rb
Lowering the resistance, gives higher VCCA.....Quote:
Originally Posted by Sidewinder
Hipro5 is it now possible to reach high fsb's with Celeron's and the old xx5 dothans with this mod ?
Yes it's quite possible.....Quote:
Originally Posted by DaWaN
HIPRO5 ,
how important is the 47uf cap scratching the paint of that little solder pad is a pain is there another place it could be attached ?
apart from that it was easy enough on a practice run with a dead ct-479.
Thank you so much hipro! Some how I was expecting you spill the beans anyways. A lot here keep secrets because they know they can't match up once they tell them...true class from you though, consider yourself responsible for everyone's Dothan overclocks out there. :cheers:Quote:
Originally Posted by hipro5
You've told us one hell of a lot but would you might checking out this list I came up from the store that runmc and I would like to order from?
Hipro - Could you confirm a list for USA shoppers. =) runmc
Hipro this is realy good stuff you findout about the voltage. My respect to you for this one :worship: Could you play around with Dothan for a while hehe, i have a fealing you could discover some more great stuff. :D
I will do these mods once i get my 780es.
Quote:
Originally Posted by leejsmith
Scratching the paint.......yes that's the word......:D
It's easy enough with a small screw driver;)
Quote:
Originally Posted by railer
I have fully prepared my spare one to put it on tommorow to see how it'll do with my new POS 770.......:)
Thank you sir
:cheer2: :cheer2: :cheer2: :cheer2:
2nd time was easy with a scaple blade. completed the mod and booted ok but have not tested how far it ill go yet.
next the vcc mod.
Quote:
Originally Posted by hipro5
oo waiting for results leej :)Quote:
Originally Posted by leejsmith
Not that i'm lazy but if i only place the resistor and skip the capacitors will it work?
The resistor is no problem to get but the capacitors is not that easy or i must use tantalium capacitors instead of smd.
Hipro that is really insane stuff! :clap:
I wish u could update example to first page what u have done so far. Good pictures of everything and good directives for what components to where and so on and i will try that. :)
With the board in your hand everything gets clear as to where to solder each piece.
Go ahead and findout. It should be easy to solder that resisor and test it out. This mod should get you most Mhz. If you do so test with pins set to 400fsb too.Quote:
Originally Posted by audiojunk66
Now i realy dont want to open my chillbox apart since i sealed it so good it had 48hr run without evap getting frozen at all. But my hands are itching...... must wait for 780:banana:
Quote:
Originally Posted by audiojunk66
Yes it will work perfect.....
Caps are important too, did you ever tried to find the max on a Dothan? It'll prime on 2700mhz and freeze on 2710mhz, that's just because of the capacitors, so placing them is really usefull ;)
Placing everything whould be perfect as a matter of fact......:)Quote:
Originally Posted by DaWaN
Thank you, i see i still have much to learn.Quote:
Originally Posted by gooFly
How come I just stumble into great threads like this? :D
Keep up the great work HiPro!
So I ran off afterwork to buy all the parts but couldn't find a single SMD capacitor around here.
But I had found lots of "junk" or excess parts everwhere. Can someone recommend any item out there that may have all the caps already which I can desolder and salvage off? Perhaps some old cheap VGA card, or IDE card?
I found a 5.5K VR which I had the shop tweak to 3.2K so I will try that mod later.
Also, is there a droop or vcore mod for the P4GD1? I found the vdimm and variable vdimm mods,but not these two. I want to have everything all modded up before I pull the cpu from the p4c800-ED and swap it over for testing.
damn ASUS Engineers :(Quote:
Originally Posted by hipro5
They used some very obscure IC on Ct-479,unobtainable on the market.
So,the VCCA was the big secret for Dothans.Thanks for shareing with us.
Keep it on bro,very good info here!
So clean....good job there mate. Good pic too :up:
yea, really clean vmod there.
maybe they used a common one but renamed it or had it renamed by the mfg? :DQuote:
Originally Posted by sangboy
amazing george! :D
cant wait until you get the p4gd1 and start modding the board as well! :eek:
whooohoo this will be a nice christmas! :D
It sure it will be :banana:. I'm selling my p4 sys on ebay so i can get 780ES from Germany;)Quote:
Originally Posted by saaya
Cant wait to mod the adapter and give it a go. I'm so glad people like Hipro exist. This forum got best tweaks ever:fact:
I have a question, is there a difference between PM 780 and PM 780ES, that everybody talks about lately?
As far as I know, the ES has adjustible multipliers.
Well does this ES mean Engineer Sample? But isn't every dothans lock free? That i have tought... On P4 theres ES CPU's wich are lock free. Others are locked.
Well back to topic, HIPRO5 you are amazing! :D Keep that up! I might try your mods when i got needed parts. But so far that looks sooooooo nice! Excellent work! :toast:
I just first have to get another adapter too... :)
Multis are unlocked down only, like on most a64s except FX
yeahQuote:
Originally Posted by Vitality
saaya, if i'm going to do the increased vcca mod, i'd liek to just replace the surface moutn resistor. do you knwo the value of the original resistor?
btw... i will do these mods. saaya, do you think that the pin closest to the "W" on the bottom of the adapter is limiting my overclock if it has bad contact? my adpater came with it missing, so i put a pin in the sokcet. its been stable so far, but it hasnt oc'd all that well.
just for the confused people, pentium-ms are unlocked downwards, like a64s. engineering samples are unlocked in both directions, like axps, and celeron-ms are locked to a single multi, like p3s.
well, in the p4c bios it says my Celeron-M has unlocked multi..Quote:
Originally Posted by cirthix
if i change it, it stays at 14x but I think it is unlocked, just that ct479 doesn't allow multi changes on it..
Celeron M's are all locked.....
Quote:
Originally Posted by cirthix
Why replace the existing resistor?......BTW it is 2KOhms......
I bought enough of these to make 20 kits. The SMD 3.3k resistor is on back order and will be here next week. I will sell these kits at cost plus shipping. PM me if your interested. It would be great if someone in Europe could make up these kits. For me to ship them to Europe would ruin cost effectiveness.Quote:
Originally Posted by hipro5
http://www.xtremesystems.org/forums/...1&d=1134227058
@Hypro 5, are this <a href="http://www.mouser.com/index.cfm?handler=displayproduct&lstdispproduc tid=273372&e_categoryid=304&e_pcodeid=6481 3" target="_blank">1uF 25Volts Murata......Part No: 81-GRM426X105K25L </a><br /> to be placed instead of the 63V 1uF, if we happen not to find the 63V ones?
For people looking for components I made this:
http://img275.imageshack.us/img275/9461/scheme17av.jpg
You can place the manufacturer parts at mouser or rs-components webpages to find the components.
Other image coming in a few minutes. Hope it clears up any doubts.
Here it is, keep in mind hypro has still to confirm if you can put those 4 25v caps instead of the 63v ones:
http://img381.imageshack.us/img381/1874/scheme26im.jpg
EDIT: THe jumpers were circled on the image I edited. You don't have to put any component there.
On the website, it says 800 are in stock?? Did they tell you they'll take over a week to reach?Quote:
Originally Posted by runmc
just to make sure....
replacing the current resistor with a 1.2k one will do the job as well?
I really hope this will work fine with the 400FSB jumpers, as a few P4C800 Deluxe boards (including mine) won't boot with the 533FSB jumpers :(
tbh i have no jumpers at all, so i'll let you know how the mod worked :)Quote:
Originally Posted by lowfat
you sure you set the 533 jumpers correctly? they go a diff direction to the 400fsb ones (not just diff pins)Quote:
Originally Posted by lowfat
coz i used to think mine wouldn't boot with 400fsb jumpers, until i realised they were the wrong way... when i corrected them, it booted fine :)
Quote:
Originally Posted by lawrywild
Yes I had them set right. When i was using a P4C800 Deluxe bios it worked fine, but i couldn't change CPU multi's with it, so i swapped to the P4C800-E 1023ed bios, and after that it would only boot once unless the CMOS was cleared. I was told to use the 400FSB jumpers, and haven't looked back since.
Do you have disabled the onboard lan because that's the problem if you use a P4C800-E bios in a P4C800,the settings of the jumpers doesn't matter.Quote:
Originally Posted by lowfat
I'm also running a P4C800-E bios in a P4C800 Deluxe because you can set the multi in bios,i use this bios to burn in my memory at high fsb but if you use bench programs like Pifast,Super Pi it's beter to start at 200Mhz and use clockgen to change the fsbÃ:banana:t gives much beter results.
Yes........Quote:
Originally Posted by cirthix
Yes they'll do just fine......:)Quote:
Originally Posted by Always
Thx for mod hipro,i get all the part and tomorrow will be day-d for adapter.Wish me luck:D
Great, suppose you checked the images and all the components were ok. Monday will be shopping time. If I can find enough components I may be able to send some kits here in europe.Quote:
Originally Posted by hipro5
@cirthix: You may want to put in a trimmer there, that way you will be able to play with the voltage instead of fixing it to a given value. BTW, what kind of voltage will you have placing that 1.2K resistor.
Well done Hipro!!!:clap: :clap: :clap:
We Greeks are proud of you :banana: :banana: :banana:
How long have you been working with electronics and how do you started?
the voltage should be the same, maybe a tad higher.Quote:
Originally Posted by Always
1.2kO=3.2kO in paralell with 2KO (O is the closest to omega heh)
1.2k=(3.2k*2k)/(3.2k+2k)
in this situation, i'd rather use a single fixed surface mount than two surface mount resistors on top of each other. trimmers really arent an option here, just too big(or too long wires). soldering it isnt a problem, i've got a nice temperature controlled iron at work, plenty of silver solder, and i'm good at soldering. i'll do pics when i'm done, but i've got finals this week :(.
About 1.82Volts.....Quote:
Originally Posted by Always
I started by hoppy when I was 13 years old by building my first FM Radio transmiter....:DQuote:
Originally Posted by SSJ5
I've been watching this thread since start, waiting for benches and results, so anyone post their findings? :)....
Anyway, I just want to say "Great Job Hipro"...
Quote:
Originally Posted by audiojunk66
Yes it is disabled. People in the CT-479 thread had the same problems as I did. I unsoldered the 533FSB jumpers, soldered the 400FSB jumpers, and it worked fine since.
Cool... I have made one also but i don't know how to find the frequency where it transmits. But i am sure that it is working because sometimes i hear my voice on the radio.Quote:
I started by hoppy when I was 13 years old by building my first FM Radio transmiter....
Anyway, i wanted to ask one more thing. You learned all this stuff about electronics on your own(by reading some books? if yes plz tell me which) or you studied electronics in the university?
out of interest will a 0.25W resistor suffice for the volt mod?
Hipro, are these 1uf ceramic good?
http://www.rs-components.nl/cgi-bin/...rodoid=2198636
i thougt the 780es chips had all multis unlocked, but just threw in one and its 17x max :/Quote:
Originally Posted by zbogorgon
heh, dont ask me, george is the mod master here :DQuote:
Originally Posted by cirthix
i could do this for europe, but im going to be really busy the next 2 weeks with a review, so id prefer if somebody else could do it :)Quote:
Originally Posted by runmc
We need someone to do this for Asia too!
I spent almost 3 hours at the "junk" computer center here and while I could fine some electrolytic caps on some ESS sound cards, I could not find any of the correct SMD Tantalum caps anywhere.
Funny that S3 Trios, Matrox VGA, and Intel raid adapters has a lot of of SMD caps while most Nvidia and ATI cards has canister caps. :D
If I get desperate, I'll buy one of those old VGA cards and strip the canister caps for use.
Quote:
Originally Posted by Johnny Bravo
You will have no problem from the wattage of the resistor......The current passing through it it's TOO low even if we solder a 0.01Watt one.....
Link doesn't work....:(Quote:
Originally Posted by Waus-mod
I just did VCCA mod, I used a trimmer @ 3.2k and soldered it onto the points..
I havn't checked that voltage with DMM yet, coz I need the jumpers to be soldered together right? (or can i measure it from somewhere else)
well, no better boot so far... I'll test max OC later..
hipro5 can you test 400fsb jumpers plz, I really wanna put 400fsb jumpers back on..
oh btw, i've ONLY done VCCA, the parts for the others are coming this week :) (thanks leejsmith)
You can measure on one of the jumpers or on the left leg of the transistor which is soldered above this resistor......the one which has it's case soldered down too(bigger)......Logicaly the 400fsb will also work too....Quote:
Originally Posted by lawrywild
Hmm think there's been a slight improvement on 533 jumpers,
pretty sure i used to be able to boot 235, now 239..
really wanna test 400fsb jumpers.. (and also my 750)
so i just press the dmm point against one of the jumpers and ground it yeh?
here's my work of art: :p:
http://img384.imageshack.us/img384/2108/dscf00089zj.jpg
edit: that's glue not solder btw! :p: I'm fond of gluegunning stuff :p: , I always get scared it'll fall off.. :S
Hipro: I saw your OC results with the first mod, but what's your results with the Vcca mod?
his results were with ALL the mods, including the ones he hasnt told us yetQuote:
Originally Posted by Mats
:D :)Quote:
Originally Posted by lawrywild
Quote:
Originally Posted by Mats
You haven't seen anything yet!.......;) :)
hipro, i tried touching a DMM against jumper pin 4 and it wasn't reading it correctly, unless it was touching something else..
is this supposed to give a reading, or am i probing it wrong?
I see you have covered with hot glue the transistor you shoud get the reading of.....:DQuote:
Originally Posted by lawrywild
Try the black cable to ground and the red one on one pin of the jumpers OR on one side of the CB4 or C7 .......they are over the fsb pins....;)
Tried that and it was reading it totally wrong, was touching jumper pin 4Quote:
Originally Posted by hipro5
Pin 2 or on the capacitors I posted......Quote:
Originally Posted by lawrywild
did only vcca mod (resistor) max boot improved to 280MHz, max OC with inbox was 2.96 before and 2.96 after.
must add those caps then... but i don't think they improve overclockability.. much :)
Remember he still hasn't released all the mods ;)
WHAAAAAT 280mhz!, what was it before...Quote:
Originally Posted by caater
400 fsb jumpers or 533 fsb jumpers?
what was the resistor set @ ?
3.3kohm fixed resistor.Quote:
Originally Posted by lawrywild
and no jumpers at all..
before it was ~235mhz if i remember correctly.
measured with DMM and 1.83v :D
I stuck in my 750 and can boot to 245 with no jumpers
really wanna try 400fsb jumpers..
my zalman 7000alcu's clips (the things that go across the retention bracket and ther screws go into) are busted, the thread is all screwed up so when i tighten, it just lets go and wont screw in :(
now back to stock cooler :(
Just use nuts and longer screws.Quote:
Originally Posted by lawrywild
Checked the three docs about 130 nm B1, 90 nm B1, and 90 nm C0.Quote:
A little summary first....ASUS technicians when they built the adapter, had in mind that it will work with the ULV DOTHANS as well.....ULV Dothans are the ones which wants about 1Volt VCore to work.....There are some pins on the DOTHAN CPU that need 1.5Volts for the ULV DOTHANS and 1.8Volts for the "regular" ones.....ASUS gives ONLY 1.5Volts on the adapter.....These pins(of the Dothan) are for it's internal fsb to work properly - in simple words - ).....They are called "VCCA" pins....By giving 1.5Volts at those pins, Dothan CPUs are "underclocked" as for their fsb and functionality.... ....So giving @ 1.8Volts, we can work with our Dothan as they should.....
-Dothan C0 533 MHz uses Vcca = 1.5 V. Page 22.
-Dothan B1 400 MHz uses Vcca = 1.8 V. Page 28. The LV and ULV parts in this doc could use either 1.5 or 1.8 V, note 8, page 31
-Banias B1 400 MHz uses Vcca = 1.8 V. Page 25.
So the adapter seems to designed for the latest 533 MHz Dothans which is the only type that uses 1.5 V only, you're actually overvolting it. This could mean that you will see the greatest increase in speed with older 400 MHz Dothans and Banias, since they are designed for 1.8 V and gets undervolted in the CT-479.
I'm not telling you that it won't work or something like that, and you've all overvolted CPU's before. I just thought that you should be aware of the fact that you're doing a 20 % Vcca overvolt.
hipro5: Could one put all the capacitors on an extra board and then just solder a few wires to the appropriate spots? I ask this because the SMD-thingies are order-only stuff at my local shop and this way I could make the mod easy for me. If it's possible, which side of each added capacitor is the "hot" side so I get the polarity correct?
?? i have screws that tighten without nutsQuote:
Originally Posted by Mats
No......No wires.....Quote:
Originally Posted by gooFly
@ Mats....Yes I've read the manuals too - some time ago - Both have the same architecture so I don't think that it will harm them......As a matter of fact, I'm working with my 770 right now benching 3D, at 2.05VCCA....:) ;)
Quote:
Originally Posted by hipro5
hehe nice, tried 400fsb jumpers yet? i really wanna try 'em..
edit: and is 2v VCCA safe on good air? or just phase you reckon?
Yeah, I don't think it will break. So tell us, what's your experience with that high Vcca? Pleease... we want to hear!;)Quote:
Originally Posted by hipro5
I don't think you understand.Quote:
Originally Posted by lawrywild
If the thread is destroyed in the aluminium pieces and you can't tighten the screws (that's what you said!!!),
then use longer screws that goes straight through the aluminium pieces and put nuts on the underside.
Do you know what I mean?
yes...i did understand.. but that involves new screws and way more hassle..Quote:
Originally Posted by Mats
I need to get some new clips
Hmm...On air!.......As soon as I test it with the default ASUS heatsink and my spare Dothan, I could tell.....;)Quote:
Originally Posted by lawrywild
So far: A M740 from 3070MHz to 3224MHz and this 770 from 3117MHz to 3277MHz under phase change and climbing.......:DQuote:
Originally Posted by Mats
Here you go....Tommorow for more...... ;)
Also a friend of mine with a 730 (I think or 750) from 3050MHz to 3150MHz(with a very fast view)....
Way more hassle, I dunno. Just bring one clip to a hardware store and buy it. Put the nuts on the underside with some glue so you won't drop them all the time. But yeah, an AMD friend would be your best friend, he might have a pair. I have two unused, I'll bring them next time I'm in London, if you can wait a year or so... :p: :DQuote:
Originally Posted by lawrywild
http://www.overclockers.ru/images/la...lman7000_2.jpg
hehe, i got these gold things, cut one end off and now i have THUMBNUTS! :p: my screws will screw perfectly into it :p:
yay got my zalman back on :D
i can boot 246 with no jumpers :D, used to be ~235 i think.. :D
100uf/16v
http://www.techzine.nl/f/g/4442phpQAytMv.jpg
And preparation for the 47uf
http://img.photobucket.com/albums/v3...ct47ufgoed.jpg
:D