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post #421 of 4998
@ tha d0ctor- nice job on the mod..I did mem mod [its the same ], and it hasnt worked for me yet..still toying with it, had a bad VR..swapped it out...still nothing but stock memv...

Have you tried upping your PCI-E freq a bit yet..? Might get you a few more points....


***The large 'holes' in the PCB right near the sticker, are your voltage measurement points...the upper ones are GPUv..the lower is vMEM. Looks like you need some more voltage still...you should be able to hold 1836mhz shaders and your current core clock with ~1.22v no problem...
post #422 of 4998
do you think the 18k resistor is going to be a bit overkill?

as long as the computer is booting and displays I guess its isnt overkill, what;s a good software program to minitor voltages, no matter what I do everest shows the same thing

according to one of the holes the voltage is 1.15/1.16 right now without voltage tweaked to the max in the bios, gonna reflash and see if it goes to 1.2 atleast, if it doesnt im going tothe 15k resistor that I bought for my memory and bumping the bios to stock and going up from there

damn this crap is addicting im making offers all voer the place on craigslist for a 512mb 8800gts\\ with a waterblock and a 320mb 8800gs lol


edit: dammit still can't get over 750core clock, upping pci-e clock 1mhz and southbridge a hair to see if it's the card or my mobo
Edited by tha d0ctor - 10/31/09 at 3:03pm
post #423 of 4998
stupid question, but does a 10k provide more or less resistance than a 20k?

edit nevermind,s ohuld have went to 15k before the 10k, instant artifacts at windoews load lol
post #424 of 4998
RIP 8800GT Alpha Dog, Lost but not forgotten

capicitor ripped off while I was trying to strip on of the wires that was already attached to it ,I tried to reattach the capaticitor, think I got some extra sodler somewhere and shorted everything BSOD code 168 now not signal whatsoever ..


, grabbing another 8800gt w/ waterblock, laing d5 pump and swiftech 320 rad w/ 6 fans tomorrow for 175, trying to talk the guy down to 165 , either way time to get some better resistors and maybe a switch so i can have a toggle between various resistances

apparently the 10k resistor give you 1.45 volts idle (not good)
Edited by tha d0ctor - 10/31/09 at 4:53pm
post #425 of 4998
Sorry to hear that .... Make sure you salvage all of the SMD type caps off the backside..and remove any caps that go all the way through the PCB.. they come in handy for other projects and GPU mods

*Just finished an AlphaDog for a member here on OCN tonight..check it out
post #426 of 4998
what's the advantage of all the caps, im getting a full cover 8800gt block and a 512 PNY 8800gt tomorrow or monday I think, Im not sure if the chips are going to be as good as the alpha dog but atleast I'll have some more experience

what are all those different mods, im seriously impressed lol, looks way better than my mass of electrical tape, I should definately consider some of that liquid electrical tape by for right now functionability is more important than asthetics

not all that is listed in your tutorial is it, is there something im missing?
post #427 of 4998
Quote:
Originally Posted by tha d0ctor View Post
what's the advantage of all the caps, im getting a full cover 8800gt block and a 512 PNY 8800gt tomorrow or monday I think, Im not sure if the chips are going to be as good as the alpha dog but atleast I'll have some more experience

what are all those different mods, im seriously impressed lol, looks way better than my mass of electrical tape, I should definately consider some of that liquid electrical tape by for right now functionability is more important than asthetics

not all that is listed in your tutorial is it, is there something im missing?

Ive added caps for better GPUv regulation..they help to filter out micro-fluctuations in the current that can cause instabilities at higher clock speeds/vcores. They also minimize the delta between droop and overshoot voltages, when transitioning between idle and load...can hlep with OCP as well.

I have added a vmeasure point for easy monitoring of the GPUv and vMEM...as well as the GPUv mod itself.

*I cant give away all meh secrets now..can I
post #428 of 4998
haha you certainly are the volt mod sensi and it would take me years to gain your knowledge and wisdow

how do you go about adding those caps to the configuration to stabilize my gpuv and which caps from my Alpha dog would do the trick?

As should I expect to use a 5k (GPUv) and 15k (Vmem) for my PNY 8800GT that im picking up today or tomorrow or does PNY use a 20k voltage resistor???
post #429 of 4998
Quote:
Originally Posted by tha d0ctor View Post
haha you certainly are the volt mod sensi and it would take me years to gain your knowledge and wisdow

how do you go about adding those caps to the configuration to stabilize my gpuv and which caps from my Alpha dog would do the trick?

As should I expect to use a 5k (GPUv) and 15k (Vmem) for my PNY 8800GT that im picking up today or tomorrow or does PNY use a 20k voltage resistor???
It depends on the Control IC used..some revisions are different..

*For the Alpha Dog- You can de-solder the black cap that has legs, through the PCB..not the surface mount ones. Though without a few more like it...it wont really do much good Pretty much any cap between 2.5-6v will work great for adding to the output phases of a GPU or mem. The caps I used for my AlphaDog, are 6.3v, 561uf.

Also- if you know where the mod point is..just measure its resistance..and *20 for VR size..always round up as well just to be safe.
post #430 of 4998
sounds good, this guy is taking his sweet time on craigslist getting back to me, after reading in it looks like the PNY cards suck for this volt modding but it might be worth a shot anyways, atleast this guy is going to give me enough time to order osme more tubing and thermal paste apparently

ill have a better idea when I actually get this card in hand, I tried prying off most of the alpha dog caps and destroyed most in the process
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