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8500/8600/GT/GTS Mod guide...

wolf

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im really sorry i havent gotten to you guys yet im just really busy and i cant concentrate on it right now i tried but im just multitasking to much but i havent forgotten
yeah dude no stress, like scrizz said, youve helped so much already, so whenever you get around to it is fine :D not to mention i have an 8800GT to keep me occupied lol :pimp:
 

Dobbie

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dobbie you should be able to follow my mod guide exactly i have the same card type.
I have been, but I need to get a voltage meter to find out the voltage I am getting, cause I'm not seeing a big increase of room to play with after doing the pencil mod (done it 2 times now, 3 after college today). I know that I was penciling on the right spots cause I followed the pics and I did notice a increase in over head the first time I penciled.
 

Solaris17

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pencil not only the top but the sides of the resistors. and make sure you put so much lead on it you have dust left over dont blow this off but obviously clean it if you tag a couple extra transistors than tryo to oc....the default core is 1.3v...you should get 1.4 to 1.45v after penciling. if you do it right and try to oc you should be able to notice the diff relatively immediately.
 

Solaris17

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yeah dude no stress, like scrizz said, youve helped so much already, so whenever you get around to it is fine :D not to mention i have an 8800GT to keep me occupied lol :pimp:
ugh!!! i have the 9600 vmod to complete as well damn :(
 

Dobbie

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pencil not only the top but the sides of the resistors. and make sure you put so much lead on it you have dust left over dont blow this off but obviously clean it if you tag a couple extra transistors than tryo to oc....the default core is 1.3v...you should get 1.4 to 1.45v after penciling. if you do it right and try to oc you should be able to notice the diff relatively immediately.
I didn't think of the side of them. I'll try that and post how well I make out. Hopefully I'll be able to hit 850 or so on the core ;)
 
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omfg I want a 8800gs so I can mod it :D
 

Dobbie

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not when my 8800gs is faster than your 8800gtx :pimp:
 

Dobbie

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pencil not only the top but the sides of the resistors. and make sure you put so much lead on it you have dust left over dont blow this off but obviously clean it if you tag a couple extra transistors than tryo to oc....the default core is 1.3v...you should get 1.4 to 1.45v after penciling. if you do it right and try to oc you should be able to notice the diff relatively immediately.
I think it worked cause I have an idle of like 70 now :O, I ran ATItool just to check for artifacts and in like 10 sec it was up to 115 so i'm not going to try and OC more with the stock cooler lol
 

Skitzo

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Great Thinking

This is absolutley great. :respect: I'd have to say I'm not happy with the purchase of this card (XFX 8600gt xxx udd3). The oc I can do with stock voltages isn't too shabby, but I know it can do alot better. I've already swapped out the stock cooler for a v2 with a hyper 15x80x80mm fan, a huge improvement in cooling an noise levels. At stock clock speeds my temps are great now. 620/800 => 37C idle....46C full load. (stock cooler temps were 48C-64C) With the help of riva tuner I have managed to attain 775/910 with temps of 38C idle and 48C full load benchmarkable.(gain of approx 900 3dmarks)(the room where my pc is doesn't go much above 20C usually around 19C) Any increases above that leads to artifacts but my temps appeare to be more than low enough for a vmod. With these stats I'm curious to see what this baby will do. I have spent hours researching on the web trying to find pics of my version but can't seem to find any. I did find a pic of a 7600gt xxx I believe that looked very similar but not exact. Does anyone know where I might find the info I require. (sorry no camera to take my own pics) I am using a ga p35 ds3l mb and it allows for a pci-e voltage increase. I haven't lookeed recently but i think it'll do up to +0.3. Thinking this might come in handy.
:toast:
:rockout:
:)
 

cdawall

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don't jack with pci-e volts +.1v is about max you should go over, but it does increase the wattage the card is given
 

Skitzo

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pci-e voltage increase

good to know, what about pci-e clock speeds. These are two settings i have never played with
 

cdawall

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good to know, what about pci-e clock speeds. These are two settings i have never played with
max of about +5-12mhz increases the cards bandwidth
 

wolf

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rethink that tho, because i very much doubt pci-e x16 bandwidth will ever limit an 8600GT, and thus an overclocked pci-e bus should not yeild any noticeable results.
 

Skitzo

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I've read that....

I'm figuring that out but hey it's only time so far. I have discrepancies in bench results with every boot and I'm not done testing but sof far I can say I've gained about 50 marks. SM2 dropped a bit, Sm3 went up a bit. Not really a great reward for the hours I've been playing at it but still fun. But I've only increased it 6Mhz so far.:roll: on the other hand ... I think this might be enough ... so yeah ... upwardly mobile. NEXT!!!! oh.. I think I'll introduce myself to next in the morning. I'll try and get hold of a camera to take a pic of my 8600gt and post it later tomorrow. I just looked and I can replace this thing for $81 CAD after mir . The level of respect i have for this card is getting lower but the potential for fun is increasing!!
 
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Skitzo

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graphics ram info for xfx 8600gt v-mod

Here is some mem info for xfx8600gt if found on the net.(stock voltages for various ram chips)

If the serial number on the RAM chips starts with "H", NOT HY:

Look at the 5th character:

V: VDD =3.3V & VDDQ = 3.3V
A: VDD =3.3V & VDDQ = 2.5V
Y: VDD =3.0V & VDDQ = 3.0V
U: VDD =2.5V & VDDQ = 2.5V
W: VDD =2.5V & VDDQ = 1.8V
S: VDD =1.8V & VDDQ = 1.8V
Q: VDD =1.5V & VDDQ = 1.5V
R: VDD =1.2V & VDDQ = 1.2V


If the serial number on the RAM chips starts with HY:


V: VDD=3.3V & VDDQ=2.5V
U: VDD=2.5V & VDDQ=2.5V
W: VDD=2.5V & VDDQ=1.8V
S: VDD=1.8V & VDDQ=1.8V
C: VDD=1.5V & VDDQ=1.5V

I found the info via this site http://forums.extremeoverclocking.com/showthread.php?p=3030348

I'm new to the forum thing and if it inappropriate to post links like this please let me know.:rockout:
 

Skitzo

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Hey Wolf

Did you find your solder points yet? The link in my last post seems t be one of the pics you sent me, but with the solder points marked aswell. Could be useful:roll: Does this look right Scrizz?
 
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nice find there Skitzo.
and posting links will get you BANNED in no time lol j/k
 

Skitzo

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Options

Was just browsing through a local sale advert and I noticed an XFX GeForce 8800GS XXX 680MHZ 384MB 192BIT 1.6GHZ DDR3 on sale ($120 after mir). I'm curious what kind of potential it might have. Does anyone have any experience with this card? :twitch:
EVGA E-GEFORCE 8800GS 550MHZ 384MB 1.6GHZ DDR3 also on sale for $109 after mir.


ok...found the thread. Seems performance increases would be worth it. From what I read is this the card at it's limits already(XFX)? I may have to reconsider that I would choose xfx over evga even though the oc isn't as nice. Too many horror stories. But hey I could be wrong and getting biased info. All manufactures have defects due to the fact that mass production isn't perfect and quality control is very expensive. I guess it's cheaper with all things considered to warranty a few than test them all. And as far as chips go well hey if it will do something, anything at all it has to have value doesn't it? I can't wait for the optical processors to hit the market. i understand work is under way to incorporate gpu processing into the cpu aswell. With the potential for the optical cpu speeds, that makes sense I guess

I know wrong thread...fingers before brain I suppose...my appologies, still getting used to posting in forums.
 
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Dobbie

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I think they're really new, but i'm not sure. ncix.com has some prices most of the time. Does anyone know where I could get a Zerotherm GX810 or higher but a GX? I'm living in canada so newegg is not going to work.
 

Skitzo

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Dobbie

Have you asked anyonr at ncix? They are listed along with tigerdirect.com under where to buy. If not I just sent an email to a fellow at a local ncix store. Should know for sure soon enough.:roll:
 

Dobbie

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Benchmark Scores 3DMark06: ~ 8200
Have you asked anyonr at ncix? They are listed along with tigerdirect.com under where to buy. If not I just sent an email to a fellow at a local ncix store. Should know for sure soon enough.:roll:
I checked the site but I didn't see them there. I think that cooler would be the best for the 8600 GT, but I'm soo impressed with it's design. I plate under the fan which makes pushes all the air right at the fins.
 

Skitzo

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cooler 8600gt

I'm using a thermalright v2 very happy. I added a hyper 80x80x15mm fan and with my oc at 770/905 my temp doesn't go over 49C it idles at 37C compared to 48C and 64C with the stock cooler

like I said very happy with this cooler:)