The ULTIMATE ASUS CT-479 Adapter Modifications...You want MORE...GET IT...

[hipro5]

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......

[Sidewinder]

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

Thank you, i see i still have much to learn.

[Neova]

How come I just stumble into great threads like this?

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.

[sang]

Ha,ha,ha.......That's EXACTLY what I need for two other adapter I was send by friends......I can't find anything about this IC......I have found the other two ones but not this one......

damn ASUS Engineers
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!

[Waus-mod]

vcca:

[Vapor]

So clean....good job there mate. Good pic too

[[XC] moddolicous]

yea, really clean vmod there.

[saaya]

damn ASUS Engineers
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!

maybe they used a common one but renamed it or had it renamed by the mfg?

amazing george!
cant wait until you get the p4gd1 and start modding the board as well!
whooohoo this will be a nice christmas!

[railer]

whooohoo this will be a nice christmas!

It sure it will be . I'm selling my p4 sys on ebay so i can get 780ES from Germany
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

[zbogorgon]

I have a question, is there a difference between PM 780 and PM 780ES, that everybody talks about lately?

[[XC] moddolicous]

As far as I know, the ES has adjustible multipliers.

[Vitality]

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! Keep that up! I might try your mods when i got needed parts. But so far that looks sooooooo nice! Excellent work!

I just first have to get another adapter too...

[kiwi]

Multis are unlocked down only, like on most a64s except FX

Well does this ES mean Engineer Sample?

yeah

[cirthix]

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.

[lawrywild]

celeron-ms are locked to a single multi, like p3s.

well, in the p4c bios it says my Celeron-M has unlocked multi..

if i change it, it stays at 14x but I think it is unlocked, just that ct479 doesn't allow multi changes on it..

[hipro5]

Celeron M's are all locked.....

[hipro5]

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.

Why replace the existing resistor?......BTW it is 2KOhms......

[runmc]

Mouser site


1uF 25Volts Murata......Part No: 81-GRM426X105K25L

22uF 10Volts Low ESR Tantalum size "b"......Part No: 80-T494B226M010

47uF 16Volts size "c"...... Part No: 80-T494C476K016AH

SMD Resistor 0803 .......Part No: 260-3.3K

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.

[Always]

@Hypro 5, are this <a href="http://www.mouser.com/index.cfm?handler=displayproduct&amp;lstdispproduc tid=273372&amp;e_categoryid=304&amp;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:



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:



EDIT: THe jumpers were circled on the image I edited. You don't have to put any component there.

[Gautam]

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. All of these components together cost me around $5.00 per kit. I also have shipping cost to me, plus tax. For me to ship them to Europe would ruin cost effectiveness.

On the website, it says 800 are in stock?? Did they tell you they'll take over a week to reach?

[cirthix]

just to make sure....

replacing the current resistor with a 1.2k one will do the job as well?

[lowfat]

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

[caater]

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

[lawrywild]

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

you sure you set the 533 jumpers correctly? they go a diff direction to the 400fsb ones (not just diff pins)

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

[lowfat]

you sure you set the 533 jumpers correctly? they go a diff direction to the 400fsb ones (not just diff pins)

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

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.