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

[lawrywild]

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?

[hipro5]

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.....

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....

[lawrywild]

Try the black cable to ground and the red one on one pin of the jumpers

Tried that and it was reading it totally wrong, was touching jumper pin 4

[hipro5]

Tried that and it was reading it totally wrong, was touching jumper pin 4

Pin 2 or on the capacitors I posted......

[caater]

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

[Always]

Remember he still hasn't released all the mods

[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

WHAAAAAT 280mhz!, what was it before...

400 fsb jumpers or 533 fsb jumpers?

what was the resistor set @ ?

[caater]

WHAAAAAT 280mhz!, what was it before...
400 fsb jumpers or 533 fsb jumpers?
what was the resistor set @ ?

3.3kohm fixed resistor.
and no jumpers at all..
before it was ~235mhz if i remember correctly.

[lawrywild]

measured with DMM and 1.83v

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

[Mats]

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

Just use nuts and longer screws.

[Mats]

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.....

Checked the three docs about 130 nm B1, 90 nm B1, and 90 nm C0.

-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.

[gooFly]

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?

[lawrywild]

Just use nuts and longer screws.

?? i have screws that tighten without nuts

[hipro5]

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?

No......No wires.....

[hipro5]

@ 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....

[lawrywild]

@ 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....

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?

[Mats]

@ 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....

Yeah, I don't think it will break. So tell us, what's your experience with that high Vcca? Pleease... we want to hear!

[Mats]

?? i have screws that tighten without nuts

I don't think you understand.
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?

[lawrywild]

I don't think you understand.
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..

I need to get some new clips

[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?

Hmm...On air!.......As soon as I test it with the default ASUS heatsink and my spare Dothan, I could tell.....

[hipro5]

Yeah, I don't think it will break. So tell us, what's your experience with that high Vcca? Pleease... we want to hear!

So far: A M740 from 3070MHz to 3224MHz and this 770 from 3117MHz to 3277MHz under phase change and climbing.......

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)....

[Mats]

yes...i did understand.. but that involves new screws and way more hassle..

I need to get some new clips

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...

[lawrywild]

hehe, i got these gold things, cut one end off and now i have THUMBNUTS! my screws will screw perfectly into it

[lawrywild]

yay got my zalman back on

i can boot 246 with no jumpers , used to be ~235 i think..

[Waus-mod]

100uf/16v


And preparation for the 47uf