Yea just a Maze4. It does the job pretty well, never gets over 35C even at 1.6+v VGPU during load.
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Yea just a Maze4. It does the job pretty well, never gets over 35C even at 1.6+v VGPU during load.
do u know exactly where it would need to be soldered? and exactly what kind of resistor i would need? that v-mod might be easy enough for me to try it. yah i know... i shouldnt mess with v-modding if im not familiar with it, but hey, u gotta start somewhere, right? and where could i find a better place to learn then here?? :DQuote:
Originally Posted by K404
If no-one has jumped in to help ya by this evening, I`ll send ya a few pics and tips. I`m at uni so cant really help much from here :)
http://www.vr-zone.com.sg/?i=2656&s=1
That's the guide I used, works like a charm :)
Now, for the heatsinks, does anyone know of any other S939 heatsinks that are more low profile that would fit on my 7800GT? I am using both of the PCI slots on my Ultra-D and the CNPS7000 won't fit :(
i did the pencil mod and only bumped it up from 2.03 stock to 2.09... I even went back and tried to darken it some, no difference...
Try another pen, woks fine for me. I got ~580 Ohm => 2.2v :D
Just measured my card and i got this;
2.17V Ram
1.61V GPU
And i have only done the biosmod, seems pretty high right?
Damn i want to do a real vmod, and up to 1.7V but i dont have the guts to do it :)
which rev is your XFX?
UDF7, is that is what you mean with rev?
But my card still only does 500 mhz with 1.61V, thats a bit wierd :/
I was asked to repair Leadtek 7800GT, it was v-modded, but it's owner crashed 2 resistors and damaged PCB. =( :eek:
So, I want to fix it, but I need to know a few things:
1. Nominal resistance of damaged resistors (1st is removed, 2nd marked as "damaged").
2. Look at the yellow and blue lines. Are they connected to the marked points?
Maybe somebody will measure this points and reply here?
I know, it'll be hard to solder resistors back, but hope I can do it. =)
http://images.people.overclockers.ru/preview/57472.jpg
_____
I think, that correct is yellow line only, lost resistors give GND to one of voltage controller pins. (4th from bottom to top on the photo)
well i think i killed my card. I was doing the vgpu, and i think i shorted the wire to the resistor above the one to be modded. Now my voltage drops all the way down to .6v ....
EDIT : i mean .325v ...
i suspect it's not grounded properly, in that case. Where did you attach the ground point to?
oh its grounded, its snug inside a molex ground. Voltage starts @ 1.12, then slowly makes its way down to .325v
EDIT : Wow, and even better, it was just a hotglue mod, but when i was taking m ram sinks off (used half ceramique epoxy and arctice ceramique) popped of a bga. Nice. So now NO chance of an RMA... Man... looks like time for a 1900...
oh. I dunno then, over to the pros...
Holy :banana::banana::banana::banana: sounds like a bad day!Quote:
Originally Posted by menlatin
You could try the oven fix ;)
that much heat will break the epoxy? ... hm... well im going to try and heat the copper sink and see if the expansion will pop the bga off....i guess its wortha try to super glue it back on.. LOL!!! god histeria... Im putting a bunch of paintbal stuff up for sale.. hopefully i can get $250 fro that, and another $250-270 from my neo 2 plat and a 6800gt. Good lucks to me!
To get the rest of the sinks off
A) try the freezer trick ;)
B) heat it up with a hairdryer
To get that BGA back on you could
A) oven trick
B) super glue haha
the mod:
http://people.freenet.de/destro/7800GT/V-mod78gt.jpg
my results:
gpu:562 + 42mhz geo @ 1,5v
ram: 600mhz @ 2,04v
ati-tool (gfx stresstest)
gpu: 580 + 42mhz geo @ 1,5v
ram: 610mhz @ 2,04
3dmark 05 9427pkt
gpu: 580 + 42mhz geo @ 1,5v
ram: 660mhz @ 2,22v
3dmark 05 9783pkt
gpu: 600 + 42mhz geo @ 1,55v
ram : 650mhz @ 2,2v
3dmark 05 9970pkt
gpu: 615mhz + 42mhz geo @ 1,58v
ram: 650mhz @ 2,2v
3dmark 05 10135pkt
gpu: 640mhz + 42mhz geo @ 1,65v
ram: 650mhz @ 2,2v
3dmark 05 10387pkt
gpu: 660mhz + 42mhz geo @ 1,75v
ram: 650mhz @ 2,2v
3dmark 05 10448 pkt
gpu: 680mhz + 42mhz geo @ 1,81v
ram: 650mhz @ 2,2v
cpu : 3330mhz - 275mhz 2-2-2-5
3dmark 05 10654pkt AM3
gpu: 693mhz + 42mhz geo @ 1,92v
ram: 650mhz @ 2,2v
no screen :(
nice core, but the ram.....:(
Quote:
Originally Posted by MikalCarbine
Well, it was the last sink that i got too, so i was all like " Yes, the last one, alsmot home free" then "cchhhrrrip."... :banana::banana::banana::banana:.................. ........................
I used some Gorilla glue and clamped it and it looks pretty good, so im gonna give it a shot. Still getting money together for a 1900xt if it dont work.
What BIOS is this? I forget what the +40 geo means exactly, I think mine are 1:1Quote:
Originally Posted by -De$troyeR-
ok i was successful volt modding my bfg 7800 gt oc today. i will do the evga tommorow. both are strong cards, but neither one of them throttle the voltage back at 2d. i had previously tried changeing it with nbit editor but the 2d setting is just not avaliable to change. how do i make the bios drop voltage on my 7800gt? and once that is done is there anything special i have to do to force the bios to flash?
UPDATE>>>
Ok i figured out how to edit so that i have a 2d voltage of 1.2v in bios and set 2d clock down to 300Mhz, but i can't flash the bios. do i have to turn write protect or something to flash?
@-De$troyeR-, nice quality job on your vmods.
Question....with an aftermarket cooler (h2o), does the onboard temp diode still work? Mine is 31c and never goes any higher even during 3D/05. I can't tell if it is reading or not.
mine usually read 31c idle, and around 37-38* max under load.
7800 sensors can't read below 31c. So you can assume that it is both idling well below, and loading at below 31c
mine usually read 31c idle, and around 37-38* max under load.