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Demything the Galaxy 8800GT - Page 16

post #151 of 163
Yeah 8800GT are plenty around. After all it's the same thing as a 9800GT (other than it being 55nm which makes no difference than power consumption) and those are in still production.
post #152 of 163
Thread Starter 
Haha... I was sort of surprised to find this thread at the top of my "Threads created by me" today - Since I created this thread, I have upgraded to (2)8800GTs, then to (2)4850s, and now (2)4870s (that's right, I do timelines more by system components than actual date )

And although it weirds me out that this thing was bumped, I would agree that it is still relevant and that the bump in question was legitimate and not a threadnecro as the post DID add add to the thread instead of being totally inane, pointless and detracting

Anyways, to answer some of the previous posts:

1) I do believe Palit tried something similar (voltage control) with a card recently - though I don't recall which card specifically. I agree that the idea is/was definitely a good one. High end video cards are ALREADY targeted at the enthusiast market, and these are the sort of people that are willing to volt mod their cards. Most enthusiasts would probably agree that they would be willing to pay some extra dough for this feature, so it seems that there's definitely a market for such cards (and thus a chance for profit)
2) Even with the stock cooler, SLI, 1.3v and a significant OC I never hit 103C on full load! The coolers did feel warm, but never got hot enough to not allow me to leave my hand on it for a prolonged time... You should probably replace the TIM with AS5 and reseat - the newer versions of the spiral cooler also are 3pin instead of 2pin fans, meaning there's probably fan speed control - go ahead and set it to 100% if yours does have fan control (it's still very tolerable at full speed)... lastly, make sure that the hot air is being properly exhausted

Also, as a personal addition to the thread: After looking through other forums and a friend of mine's personal experience, it turns out that if you manage to get through the semi-crummy RMA service(something that I personally failed to do due to "alterations to the card"), the card you receive will be soldered in the 1.2v position! It appears to be a simple case of removing the solder point and using a jumper of your own, but it brings to question whether 1.3v is believed to cause failure with these cards....
Edited by killa_concept - 4/9/09 at 12:39pm
post #153 of 163
Quote:
Originally Posted by killa_concept View Post

.....Also, as a personal addition to the thread: After looking through other forums and a friend of mine's personal experience, it turns out that if you manage to get through the semi-crummy RMA service(something that I personally failed to do due to "alterations to the card"), the card you receive will be soldered in the 1.2v position! It appears to be a simple case of removing the solder point and using a jumper of your own, but it brings to question whether 1.3v is believed to cause failure with these cards....
Interesting. I sold my card to someone on OCN and unfortunately I deleted the private messages so I have no way of knowing who it was. If I could somehow find out who(PM me if the person i sold the 8800GT to is reading this) it was I would be very interested to know if he has had any problems with the card.
   
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post #154 of 163
Quote:
Originally Posted by killa_concept View Post
Even with the stock cooler, SLI, 1.3v and a significant OC I never hit 103C on full load! The coolers did feel warm, but never got hot enough to not allow me to leave my hand on it for a prolonged time... You should probably replace the TIM with AS5 and reseat - the newer versions of the spiral cooler also are 3pin instead of 2pin fans, meaning there's probably fan speed control - go ahead and set it to 100% if yours does have fan control (it's still very tolerable at full speed)... lastly, make sure that the hot air is being properly exhausted
I actually upgraded the cooler to a Zalman VF900 (pretty much the best for an 8800GT) and I'm using some professional grade thermal paste and I have no case so the hot air flows freely. And the cooler itself isn't hot but the GPU chip temp is. However, since there are no coolers on the Voltage Regulators (the grey squares) they get extremely hot very fast. I can feel the heat radiating just by hovering my finger over them.

Also, I dunno what you guys used to test the card temps but Furmark is no ordinary program. There is an Xtreme burning mode that will raise the temps to as high as they get with whatever cooler you have. I use that to check for OC stability and max temps on every card.
Edited by Open1Your1Eyes0 - 4/9/09 at 4:00pm
post #155 of 163
Thread Starter 
Quote:
Originally Posted by Open1Your1Eyes0 View Post
I actually upgraded the cooler to a Zalman VF900 (pretty much the best for an 8800GT) and I'm using some professional grade thermal paste and I have no case so the hot air flows freely. And the cooler itself isn't hot but the GPU chip temp is. However, since there are no coolers on the Voltage Regulators (the grey squares) they get extremely hot very fast. I can feel the heat radiating just by hovering my finger over them.
What "professional grade" thermal paste exactly and how much did you use? Is the cooler tightened fully?

GPU temperature reporting as very hot without the heatsink not feeling similarly hot is a surefire sign of improper contact or worse yet, a broken heatsink. If there's proper contact, the heat is supposed to flow from the chip to the heatsink (i.e the heatsink should only feel marginally cooler than the chip)

Also, if I recall correctly, those voltage regulators ARE supposed to have some form of heatsink on them... did yours really not ship with one??

Quote:
Originally Posted by Open1Your1Eyes0 View Post
Also, I dunno what you guys used to test the card temps but Furmark is no ordinary program. There is an Xtreme burning mode that will raise the temps to as high as they get with whatever cooler you have. I use that to check for OC stability and max temps on every card.
Most people test their overclocks with either Furmark or ATItool artifact scan... both fully stress/load the GPU (you can verify this yourself using GPU-z) so temperatures should be identical with both programs
Edited by killa_concept - 4/9/09 at 9:22pm
post #156 of 163
Quote:
Originally Posted by killa_concept View Post
What "professional grade" thermal paste exactly and how much did you use? Is the cooler tightened fully?

GPU temperature reporting as very hot without the heatsink not feeling similarly hot is a surefire sign of improper contact or worse yet, a broken heatsink. If there's proper contact, the heat is supposed to flow from the chip to the heatsink (i.e the heatsink should only feel marginally cooler than the chip)

Also, if I recall correctly, those voltage regulators ARE supposed to have some form of heatsink on them... did yours really not ship with one??

Most people test their overclocks with either Furmark or ATItool artifact scan... both fully stress/load the GPU (you can verify this yourself using GPU-z) so temperatures should be identical with both programs
This heatsink compound is used for things that get way hotter than computer chips, such as professional audio equipment and it doesn't dry out and harden like the grey stuff. It's 100% covers the surface because it's soft. It's made of silicon. This is the good stuff.

http://shop.willyselectronics.com/browse.cfm/4,308.htm

I've done tests personally and this is the best thermal paste I've ever used for anything and I used it on all my computer parts. Superior contact due to the soft silicon that fills into every groove. Sorry if I sound like I'm advertising. I don't mean to put down consumer based thermal paste but it's just overpriced marketing that catches the consumer's eyes and ears. Professionals don't play into that.

Here's a good review: http://www.hardocp.com/article.html?...hlbnRodXNpYXN0

The voltage regulators don't have heatsinks on them or any 8800GT card as far as I know.

See the 4 grey squares on the right of the card.



Also ATITool is actually no longer the best stability checking tool. I speak from experience because where I tested ATITool for hours with no artifacts, Furmark and OCCT gave errors after 15-20 mins. I also ran a couple of Crysis loops in the benchmarking tool. That's very good test also.
Edited by Open1Your1Eyes0 - 4/9/09 at 10:38pm
post #157 of 163
Furmark is a great testing tool but I wasn't aware OCCT tested video cards

I use OCCT for CPU stressing though
   
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post #158 of 163
Quote:
Originally Posted by kkbob33 View Post
Furmark is a great testing tool but I wasn't aware OCCT tested video cards

I use OCCT for CPU stressing though
Yeah I didn't know either until somebody pointed out to me recently, the new version does.

http://www.ocbase.com/perestroika_en/index.php?Download
post #159 of 163
Quote:
Originally Posted by Open1Your1Eyes0 View Post
Yeah I didn't know either until somebody pointed out to me recently, the new version does.

http://www.ocbase.com/perestroika_en/index.php?Download
Thanks +rep
   
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post #160 of 163
Just thought I'd post a few semi-relevent pics:

These two are with my Galaxy 8800GT on the left and an XFX 9800GT on the right:

Was doing a cooler swap:





This next one is my sexy XFX 9800GT now with a Zalman VF900 :

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