8800GT

rpsgc · Post by **rpsgc** » Fri Nov 09, 2007 12:47 pm

vick1000 wrote:There are people with S1s on then right now...

http://www.hardforum.com/showpost.php?p ... stcount=16

...they mount just like a 7900GTX, why would a S1 not work?

You just have to get some aftermarket sinks for the RAM and MOSFETS.

Indeed they do.

http://www.ocforums.com/showpost.php?p= ... stcount=61

Kaleid · Post by **Kaleid** » Fri Nov 09, 2007 12:55 pm

Speaking of mosfet cooling (when replacing the cooling to a HR03) is it really needed?

And if so, what would be recommended?

Ryan Norton · Post by **Ryan Norton** » Fri Nov 09, 2007 3:37 pm

Hey, that's great news!

As far as MOSFET cooling, I thought I saw pics somewhere of an 8800GT with a factory installed Zalman flower sink that had no cooling on the MOSFETs or RAM chips.

vick1000 · Post by **vick1000** » Fri Nov 09, 2007 5:53 pm

On my eVGA SC, I wouldn't dare run it with out FETsinks.

Tzupy · Post by **Tzupy** » Sat Nov 10, 2007 8:08 am

@Kaleid: the HR-03 GT includes the needed heatsinks, according to the installation procedure linked here:
http://www.thermalright.com/a_page/main ... 03-gt.html

ultrachrome · Post by **ultrachrome** » Sat Nov 10, 2007 8:18 am

Kaleid wrote:Excellent to know that the original HR03 works with this card.

Those few who have so far been able to purchase the card. Do you have any problems with voice coil buzz...something that seems to have plagued many Nvidia cards.

I hear some noises when I run rthdribl but can't say I've noticed any during gaming.

Very similar to my 7900GT.

Kaleid · Post by **Kaleid** » Sun Nov 11, 2007 2:16 am

Tzupy

Thanks for the link. I will however probably not purchase the GT version of HR03 if the first HR03 can be mounted. I'll try to fix the mosfet cooling in some other way...or if that fails I guess I'll have to sell my current cooler and buy the GT cooler

ultrachrome

Alright. I've had a lot of problems with different Nvidia graphic cards and buzz coil...luckily it's mostly a problem with different benchmarks such as Aquamark 3 and 3dMark2001SE.
I may have to opt for a HD3870 instead...

jmke · Post by **jmke** » Mon Nov 12, 2007 6:30 am

JazzJackRabbit wrote:Seems like a decent midrange card.

quite an understatement, drop the "mid" will ya? Zotac 8800 GT â‚¬220 faster than 8800 GTX out of the box

Gnerma · Post by **Gnerma** » Wed Nov 14, 2007 11:56 pm

Hi guys. I've got an 8800GT and an unused VF900 sitting around. I know there has been a bit of discussion about this combination in this thread but has anybody tried it? Does it outperform the stock cooler at 5v? I'm pretty happy with the noise level of the stock cooler (its insanely loud at full speed but it never ramps up) but 91c puts a pretty heavy damper on any thoughts of overclocking.

ToKa · Post by **ToKa** » Thu Nov 15, 2007 4:57 am

Gnerma wrote:Hi guys. I've got an 8800GT and an unused VF900 sitting around. I know there has been a bit of discussion about this combination in this thread but has anybody tried it? Does it outperform the stock cooler at 5v? I'm pretty happy with the noise level of the stock cooler (its insanely loud at full speed but it never ramps up) but 91c puts a pretty heavy damper on any thoughts of overclocking.

Just finished fitting a vf900 to my 8800GT, idle temp is now 41 and load is 65, was 56 idle and 92 load with the stock cooler, its also nice a quiet running at 2000 rpm.
Ambient temperatures are also down sits at 31 idle, im sure it was into the 40's with stock.
I've only had 1 attempt at overclocking got 700/1700/950 and temps went up to 68 under load.
I did use as5 so the temps may drop a degree or 2 in the next few days

Ryan Norton · Post by **Ryan Norton** » Thu Nov 15, 2007 5:34 am

well, looks like I'm going to green light myself to purchase an 8800GT and then fit my 7900GTX's Accelero S1 to it. I believe I never used the Accelero's RAM sinks, but as far as leaving the power section uncooled, every picture I've seen posted of S1s on 8800GTs has only had heat sinks on the RAM chips.

Jokoto · Post by **Jokoto** » Thu Nov 15, 2007 8:25 am

So an Accelero S1 really is enough for the 8800GT? Of course the manufacturer would like everyone to believe otherwise to perhaps sell them a new version, but... apparently it does well with a Radeon X1900 XTX that supposedly has an even bigger power draw than the 8800GT. The only downsides for me are that it takes up a second slot and there aren't many retailers that carry the S1. I found one online store that has it here at the moment - for a salty price of 40 euro! It would be cheaper to import one myself, especially now that the dollar is record low. I wonder if an HR-11 would help with case ambient when used with the S1...

Edit: Found one at a slightly more reasonable price.

ultrachrome · Post by **ultrachrome** » Thu Nov 15, 2007 8:40 am

ToKa wrote:Just finished fitting a vf900 to my 8800GT, idle temp is now 41 and load is 65, was 56 idle and 92 load with the stock cooler, its also nice a quiet running at 2000 rpm.
Ambient temperatures are also down sits at 31 idle, im sure it was into the 40's with stock.
I've only had 1 attempt at overclocking got 700/1700/950 and temps went up to 68 under load.
I did use as5 so the temps may drop a degree or 2 in the next few days

That's great news. I ordered a VF1000 that should arrive today. I had a nagging feeling I should have gone with the HR-03 instead, but it looks like I'll be more than okay with it.

Tzupy · Post by **Tzupy** » Fri Nov 16, 2007 5:46 am

There's a new (G92 based) 8800 GTS around the corner, as reported here:
http://www.vr-zone.com/articles/G92_GeF ... /5405.html
It could be as fast as an 8800 Ultra under certain cirmcumstances, but I don't like the cooler's exhaust (IMO it's restrictive).

ultrachrome · Post by **ultrachrome** » Fri Nov 16, 2007 8:32 am

VF1000 w/ fanmate2 set to lowest setting v. stock cooler @ 29%.

Idle (vf1000 v. stock)
gpu core 46 v. 58
gpu amb 38 v. 48

Load (vf1000 v. stock)
gpu core 58 v. 92
gpu amb 47 v. 72

All temps in C, obviously. Room temp varies between 21-22.

As with the VF900 fan, even at the lowest fanmate setting, the fan is just barely detectable but something I could live for a little while.

JazzJackRabbit · Post by **JazzJackRabbit** » Sat Nov 17, 2007 2:12 pm

Tzupy wrote:There's a new (G92 based) 8800 GTS around the corner, as reported here:
http://www.vr-zone.com/articles/G92_GeF ... /5405.html
It could be as fast as an 8800 Ultra under certain cirmcumstances, but I don't like the cooler's exhaust (IMO it's restrictive).

Not any more restrictive than any card with direct exhaust such as 3870/2900/8800GTS(G80)

Gnerma · Post by **Gnerma** » Sun Nov 18, 2007 7:33 am

Thanks for the input guys. I'm definitely going to fire up the idle VF900 for my GT.

jimmyzaas · Post by **jimmyzaas** » Mon Nov 19, 2007 5:24 pm

Does any one that owns a 8800 GT find the stock cooler really THAT loud?

How does it fair if you let it idle or run 2D tasks? Is the noise generated comparable to a Zalman VF700 @ 5v/7v?

I ask because I'm ready to jump on the 8800 GT, but I've heard that the HD 3850 is incredibly quiet by margins. As the card is already expensive itself, I would tolerate a card thats inaudible/quiet at idle but loud during gaming, than to fork out another 50 on cooling.

I am one cheap sucker.

ultrachrome · Post by **ultrachrome** » Mon Nov 19, 2007 8:26 pm

jimmyzaas wrote:Does any one that owns a 8800 GT find the stock cooler really THAT loud?

How does it fair if you let it idle or run 2D tasks? Is the noise generated comparable to a Zalman VF700 @ 5v/7v?

I ask because I'm ready to jump on the 8800 GT, but I've heard that the HD 3850 is incredibly quiet by margins. As the card is already expensive itself, I would tolerate a card thats inaudible/quiet at idle but loud during gaming, than to fork out another 50 on cooling.

I am one cheap sucker.

The stock fan setting is 29% which is not bad noise wise (and definitely not "silent") but it is not comparable to a Zalman fan. You might be able to turn it down for quieter idle but gaming at 40% and higher is pretty loud.

I haven't seen the benchmarks but if the ATI is close, you might choose it if you want to save yourself the expense of an aftermarket cooler.

derekva · Post by **derekva** » Mon Nov 19, 2007 10:01 pm

ultrachrome wrote:
jimmyzaas wrote:Does any one that owns a 8800 GT find the stock cooler really THAT loud?

How does it fair if you let it idle or run 2D tasks? Is the noise generated comparable to a Zalman VF700 @ 5v/7v?

I ask because I'm ready to jump on the 8800 GT, but I've heard that the HD 3850 is incredibly quiet by margins. As the card is already expensive itself, I would tolerate a card thats inaudible/quiet at idle but loud during gaming, than to fork out another 50 on cooling.

I am one cheap sucker.
The stock fan setting is 29% which is not bad noise wise (and definitely not "silent") but it is not comparable to a Zalman fan. You might be able to turn it down for quieter idle but gaming at 40% and higher is pretty loud.

I haven't seen the benchmarks but if the ATI is close, you might choose it if you want to save yourself the expense of an aftermarket cooler.

The only problem is the disconcerting number of reports from people stating that due to some indeterminate problem (firmware? driver?) some of the 8800GT cards that have been shipping have 'stuck' fans - e.g. the fans never ramp up above 29% and the cards overheat during gaming.

I'm ordering my 8800GT next week and I'm going to make sure to get an HR-03GT as well. Better safe than sorry!

-D

jimmyzaas · Post by **jimmyzaas** » Tue Nov 20, 2007 1:00 pm

ultrachrome wrote: The stock fan setting is 29% which is not bad noise wise (and definitely not "silent") but it is not comparable to a Zalman fan. You might be able to turn it down for quieter idle but gaming at 40% and higher is pretty loud.

I haven't seen the benchmarks but if the ATI is close, you might choose it if you want to save yourself the expense of an aftermarket cooler.

Hey ultrachrome, did you use only the VF1000? or did you use it with ZM-RHS88? If you didn't use the ZM-RHS88, how are you cooling the mosfets?

ultrachrome · Post by **ultrachrome** » Tue Nov 20, 2007 1:07 pm

jimmyzaas wrote:Hey ultrachrome, did you use only the VF1000? or did you use it with ZM-RHS88? If you didn't use the ZM-RHS88, how are you cooling the mosfets?

I looked at the ZM-RHS88 but it doesn't appear compatible with the GT which is more like 7900 series card. I used the included Zalman ram sinks and a couple of swiftech sinks for the mosfets.

jimmyzaas · Post by **jimmyzaas** » Tue Nov 20, 2007 1:39 pm

I'm curious.. ultrachrome..

I took a look at the picture here

http://www.tomshardware.com/forum/24474 ... nformation

I can't figure what kinda of heatsink you attached to the mosfets. Did you use BGA ram sinks?

If so, do you think these would work on the card? http://www.directcanada.com/products/?s ... MAN%20TECH

ultrachrome · Post by **ultrachrome** » Tue Nov 20, 2007 3:10 pm

jimmyzaas wrote:I'm curious.. ultrachrome..

I took a look at the picture here

http://www.tomshardware.com/forum/24474 ... nformation

I can't figure what kinda of heatsink you attached to the mosfets. Did you use BGA ram sinks?

If so, do you think these would work on the card? http://www.directcanada.com/products/?s ... MAN%20TECH

Yes, I used the BGA parts. ZM-RHS1 should work fine.

Those temps the tomshardware poster got with the accelero s1 look sufficient but how would the noise level be?

But I think the poster is incorrect about the RHS88 compatibility. The position and number of ram chips on the GT is completely different than that of the other 8800 cards.

Additionally, the 8800GT uses hole 5 on the Zalman VF1000 while the other 8800 cards use hole 6. So the GPU holes would not line up with the RHS88.

djkest · Post by **djkest** » Tue Nov 20, 2007 3:46 pm

Well, I broke down today and bought an 8800GT. I really didn't want to, but I had no choice! I want to make it quiet, but I'll be needing to overclock it as much as possible, well cause thats what I want. So with that in mind, I am going to use an Accelero S-1 with a 120mm fan mounted pretty much over the cpu/ram area, mounted with elastic cord and isolated from the heatsink with some 1/4" thick closed cell foam.

$248 shipped, btw.

Jokoto · Post by **Jokoto** » Tue Nov 20, 2007 4:34 pm

Before you overclock, could you report how the temps are with the S1 at stock clocks, with a 120mm fan at maybe 5-6 volts - or if you control it with a fan header, at maybe 600rpm? That would be the maximum I can bear with my Nexus fans, so I'd appreciate having that information before I decide if I want an 8800 GT (it would help deciding what cooler to mount on it, if passive stock coolers aren't available even then).

djkest · Post by **djkest** » Tue Nov 20, 2007 5:13 pm

The S1 is reported to work very well for it. When I used it on my x1800XT, it dropped my idle temps by 20 and load temps by 30. The only fan nearby is a 120mm intake at the front of the case @1200 RPM, nearly 7" from the closest edge.

I'll be sure to test it though. Might not be here until next monday.

Mikey · Post by **Mikey** » Thu Nov 29, 2007 4:02 pm

Review on the Sparkle Passive 8800GT

http://www.anandtech.com/video/showdoc.aspx?i=3165&p=1

Personally i think the case airflow wasn't good enough, those fans are too far away from the sparkle heatsink to ensure adequate airflow over them.

Thoughts?

djkest · Post by **djkest** » Thu Nov 29, 2007 5:57 pm

They didn't even mention noise in their testing.

They put that thing in the hottest box they could come up with, and it didn't crash, which was impressive. You could probably mount 2x80mm fans on that thing or a single 120mm fan, I'd like to see that. The point? I'm sure you could produce less noise than the nearly 70 dB reported for the 8800GT at full speed @ 2"

The point of passive is for less noise, yet they put it in a LOUD, HOT box. I'm sure the other turbo-speed fans in that rig drown out even the stock fan on the gt.

Mikey · Post by **Mikey** » Thu Nov 29, 2007 8:22 pm

djkest wrote:The point of passive is for less noise, yet they put it in a LOUD, HOT box. I'm sure the other turbo-speed fans in that rig drown out even the stock fan on the gt.

Yeah, I get the impression that they were trying to kill it and were genuinely surprised when it didn't die. Agree a more realistic test would have been nice.

8800GT

VF1000 v. stock cooler