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When do I need more volts on my 8800?

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emp   01-23-2008 at 04:53:02 PM

Ok I'm buying a new cooler for my 8800GTS 320 in order to OC more and I'd like to know when does temperature stop being a limiting factor? I want to go as high as I can with stock volts, but I'm not sure of how do I tell how high I can go before voltage is the limiting factor. I'm almost sure the answer to this question is that "You never know until you try", but wanted to ask before I did anything.

------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
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raven_87   01-23-2008 at 05:11:20 PM
- 0 +

Temperature stops being a limiting factor when your GPU is not overheating =)

As for voltage; that is really a tough call. I've seen 8800's with alot of flux, and. then I've seen some that can handle voltage increases well. And when you start talking about voltage increases you risk the life of your components. So if you plan to give it the juice, make sure you go slow.

Reply to raven_87
emp   01-23-2008 at 05:29:08 PM
- 0 +

So just put the thing on properly, keep OC'ing until it crashes and then will I know when I'll need more juice right? That's what I thought, but wanted to double check... Most likely won't be juicing it anytime soon. Maybe when the release date on the GF10/HD4K is close I might start XD

------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
 Reply to emp
raven_87   01-23-2008 at 05:41:02 PM
- 0 +

until it crashes? no... maybe until you get artifacts yes...

Reply to raven_87
Evilonigiri   01-24-2008 at 12:47:04 AM
- 0 +

I'm willing to believe that the highest core clock on stock voltage is around 675MHz. My system crashes on that setting :P

No artifacts btw.

------------------------------ "Nvidia, the Way It's Meant to be PAID Played! - Corrado
*Lesbian Lover Club* - founder Assman
 Reply to Evilonigiri
emp   01-24-2008 at 05:01:19 AM
- 0 +

right now on stock cooler at default fan speeds my best stable clock is 621/1566/945 (Can't do 648), however if I turn on to 100% I can do 648/1620/972 as long as it's not stressed to the max (Crysis... ran it for about 10 min before it croaked). So I'm guessing with new cooling I can reach 675/1674/999 on stock volts like u said... Who knows... (**hoping**)

I know I have a pretty decent Rev A2 core compared to others.

Message quoted 1 times
------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
 Reply to emp
Valtiel   01-24-2008 at 06:13:46 AM
- 0 +

emp wrote :

right now on stock cooler at default fan speeds my best stable clock is 621/1566/945 (Can't do 648), however if I turn on to 100% I can do 648/1620/972 as long as it's not stressed to the max (Crysis... ran it for about 10 min before it croaked). So I'm guessing with new cooling I can reach 675/1674/999 on stock volts like u said... Who knows... (**hoping**)

I know I have a pretty decent Rev A2 core compared to others.



I thought most of the Cores for the past 3-4 months are A2 revs?

back on topic, how are you planning on changing voltage? through software means? or by physically soldering stuff/ pencil mods?

if its through software or a simple pencil mod, i'd like to know because I have my 8800GTX with HR-05+ sitting here at 44c idle and 53c load but only 648/1560/999. no gains to overclocking by cooling it from 75c load temps :??:

------------------------------ Q6600 (lapped IHS+ HSF) @ 3.55Ghz 1.425v (BIOS) TT-120
Foxconn 8800GTX(648/1560/2000)
http://www.computerbase.de/bild/news/18649/2/ <==EXCITED! :D
Fan roundup: http://www.xtremesystems.org/forum [...] p?t=170224
 Reply to Valtiel
emp   01-24-2008 at 02:57:25 PM
- 0 +

If I was to volt it (Not planning to), I'd most likely do it by software. Let me looking around the web and I'll let you know.

------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
 Reply to emp
emp   01-24-2008 at 04:25:46 PM
- 0 +

Nevermind. It seems it's not possible through BIOS modding? Anyone got any insight?

Message quoted 1 times
Message edited by emp on 01-24-2008 at 04:30:06 PM
------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
 Reply to emp
raven_87   01-24-2008 at 08:26:59 PM
- 0 +

rivatuner, ATI tool...

Reply to raven_87
cnumartyr   01-24-2008 at 08:28:24 PM
- 0 +

emp wrote :

Nevermind. It seems it's not possible through BIOS modding? Anyone got any insight?



Get a soldering gun and a resistor pot and make sure you have steady hands!


Hard mod is the only way.

Message quoted 1 times
------------------------------ TeamBAG Member
 Reply to cnumartyr
Valtiel   01-25-2008 at 12:30:40 AM
- 0 +

cnumartyr wrote :

Get a soldering gun and a resistor pot and make sure you have steady hands!


Hard mod is the only way.



Eh, i wouldn't know where to start. First I'd need to know where to solder, then I'd need to know what kind of resistor, I'd need a good soldering iron, and then i would need solder. :( doesn't seem that worth it to me. Maybe if someone helped me out, whaddya say CNUmartyr? If I kill my 8800 that'll just give me a reason to buy a 3870X2 :D

Message quoted 1 times
------------------------------ Q6600 (lapped IHS+ HSF) @ 3.55Ghz 1.425v (BIOS) TT-120
Foxconn 8800GTX(648/1560/2000)
http://www.computerbase.de/bild/news/18649/2/ <==EXCITED! :D
Fan roundup: http://www.xtremesystems.org/forum [...] p?t=170224
 Reply to Valtiel
cnumartyr   01-25-2008 at 12:32:54 AM
- 0 +

Valtiel wrote :

Eh, i wouldn't know where to start. First I'd need to know where to solder, then I'd need to know what kind of resistor, I'd need a good soldering iron, and then i would need solder. :( doesn't seem that worth it to me. Maybe if someone helped me out, whaddya say CNUmartyr? If I kill my 8800 that'll just give me a reason to buy a 3870X2 :D



http://www.xtremesystems.org/forum [...] p?t=168788

------------------------------ TeamBAG Member
 Reply to cnumartyr
Valtiel   01-25-2008 at 12:43:09 AM
- 0 +

Should have specified better, I have an 8800GTX

Message quoted 1 times
------------------------------ Q6600 (lapped IHS+ HSF) @ 3.55Ghz 1.425v (BIOS) TT-120
Foxconn 8800GTX(648/1560/2000)
http://www.computerbase.de/bild/news/18649/2/ <==EXCITED! :D
Fan roundup: http://www.xtremesystems.org/forum [...] p?t=170224
 Reply to Valtiel
Valtiel   01-25-2008 at 12:55:17 AM
- 0 +

cnumartyr wrote :

http://www.xtremesystems.org/forum [...] X+Volt+Mod

 

ah yes, I think I read that thread before, anyhow thank you for supporting my laziness!! :kaola:

 

Edit: also found this one http://www.vr-zone.com/?i=4296 a bit old but its pretty informative. Just need to figure out where ground is on these cards (I only got a 'd' in my electrical engineering class :()

Message quoted 1 times
Message edited by Valtiel on 01-25-2008 at 01:06:39 AM
------------------------------ Q6600 (lapped IHS+ HSF) @ 3.55Ghz 1.425v (BIOS) TT-120
Foxconn 8800GTX(648/1560/2000)
http://www.computerbase.de/bild/news/18649/2/ <==EXCITED! :D
Fan roundup: http://www.xtremesystems.org/forum [...] p?t=170224
 Reply to Valtiel
cnumartyr   01-25-2008 at 12:56:25 AM
- 0 +

Valtiel wrote :

ah yes, I think I read that thread before, anyhow thank you for supporting my laziness!! :kaola:



Lol.. I think it's a waste of time to potentially turn a $600 card into a brick. I don't need 3D Mark competition..

Message quoted 2 times
------------------------------ TeamBAG Member
 Reply to cnumartyr
Evilonigiri   01-25-2008 at 01:00:26 AM
- 0 +

cnumartyr wrote :

Lol.. I think it's a waste of time to potentially turn a $600 card into a brick. I don't need 3D Mark competition..


Cause you own them all? :lol:

------------------------------ "Nvidia, the Way It's Meant to be PAID Played! - Corrado
*Lesbian Lover Club* - founder Assman
 Reply to Evilonigiri
Valtiel   01-25-2008 at 01:13:46 AM
- 0 +

cnumartyr wrote :

Lol.. I think it's a waste of time to potentially turn a $600 card into a brick. I don't need 3D Mark competition..


You're right but I might do it when it gets on in its old age :lol: just because it would be a fun and I'd learn something too .


Message edited by Valtiel on 01-25-2008 at 01:14:51 AM
------------------------------ Q6600 (lapped IHS+ HSF) @ 3.55Ghz 1.425v (BIOS) TT-120
Foxconn 8800GTX(648/1560/2000)
http://www.computerbase.de/bild/news/18649/2/ <==EXCITED! :D
Fan roundup: http://www.xtremesystems.org/forum [...] p?t=170224
 Reply to Valtiel
emp   01-25-2008 at 04:00:01 AM
- 0 +

Yep that's exactly what I was planning to do... Get good cooler now and play with it on stock, when I'm about ready to buy a new card, then juice then one to the max before purchasing a new one XD

------------------------------ Anxiously awaiting the Hydra 100 and the Hydra Engine...
www.lucidlogix.com
 Reply to emp
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