About 8800GT SLI...

[Nanyang]

Hi TPU... Just want to make sure about 8800GT because i want to upgrade to SLI... Can i mix Asus 8800GT 512Mb and Galaxy 8800GT 512Mb and run them in SLI? For me.. the two card look the same and the PCB are same also and one of my friend say that i cannot mix it to run SLI... This is my 1st gaming rig so i not know much about SLI... Thanks for reply.....:rockout:

[Mussels]

you can mix them.

If one is factory overclocked, they will both drop to the same (slowest of the two) speed.

Only thing worth noting is that two GT's are the max for SLI - you cant run three (i beleive your mobo supports that, so i'm just saying)

[wolf]

totally, as long as they are the same GPU and ram configuration they should work, i.e you can SLi two different brand 8800GTS's, but if one is a G80GTS and one is a G92GTS then its no go.

[Mussels]

he was talking about the 8800GT and not the GTS.

Yes, it should be noted if you meant GTS that there are two kinds.

The OP said GT with the same PCB, so its going to be fine.

[wolf]

just laid out the GTS as an example of incompatible boards is all

[Mussels]

yeah i know... too often people (myself included) pop with somewhat related advice and just confuse the hell out of the OP. i only clarified for his sake.

[wolf]

no worries, god i love this forum, compared to other forums i think we have some really good level-headed people here, more so than usual, too many times i have been annoyed by trolls and douches and the likes, here all thats needed is a simple clarification and everyones bonza.

[Yin]

Just curious would that mean my XFX card would work with an evga. I think (not sure) that the xfx card is a modded one of the reference design

[Mussels]

Yes and no - they should both work even with altered PCB's, but they will slow down to the slowest card.

Lets say:
Card 1 is 600 core, 1000 mem
card 2 is 500 core, 1200 mem.

In SLI, they would run at 500 core, 1000 mem - the slowest COMMON speed.


SOMEtimes, they're too far changed to be compatible - if the PCB is different, i suggest testing before buying, or at least googling for other peoples success/failure stories.

[wolf]

excellent advice.

[snuif09]

i tought they must have same bios:confused::confused:

[Nanyang]

Thanks people....:respect: I will buy my new Galaxy 8800GT by today...:rockout:

Yes i know that my mobo can run Tri-SLI but i need to buy 3 8800GTX or 3 8800 Ultra and that will cost me more:banghead:

I did try my sister Rig that come with Tri-SLI with QX9650 and 3 XFX 8800Ultra XXX... Damm...:banghead: fast... but 2 8800GT is good for my 22' Samsung....:rockout:

I just wait for new GeForce 9XXX GTX or Ultra (what ever there name is).. then i go for Tri-SLI...:rockout:

BTW... is there any good cooler for 8800GT or good Water Block?

[wolf]

"Cards from two separate retail companies will work together in SLI mode, but they must be the same GPU model (e.g. G70, G73, G80, etc). The cards may have different BIOS revisions, different default clock speeds, or even different memory sizes. However, the fastest card - or the card with more memory - will run at the speed of the slower card or disable its additional memory"

straight from the mouth of an nvidia FAQ page.

as to a cooler.....im of the opinion that the stock cooler is "fine" if you just go over 80% fan at all times, then temps are well acceptable, i live in hot australia, and i havent seen temps over 65 degrees at all with 100% fan, and thats at 756/1836/1944 core/shader/mem.

if you do want afetrmarket cooling tho, i can suggest arctic cooling accelero S1, or any zalman VF from the VF700 to the VF1000 (700-900-Fatal1ty FS-V7-1000)

[Nanyang]

"Cards from two separate retail companies will work together in SLI mode, but they must be the same GPU model (e.g. G70, G73, G80, etc). The cards may have different BIOS revisions, different default clock speeds, or even different memory sizes. However, the fastest card - or the card with more memory - will run at the speed of the slower card or disable its additional memory"

straight from the mouth of an nvidia FAQ page.

as to a cooler.....im of the opinion that the stock cooler is "fine" if you just go over 80% fan at all times, then temps are well acceptable, i live in hot australia, and i havent seen temps over 65 degrees at all with 100% fan, and thats at 756/1836/1944 core/shader/mem.

if you do want afetrmarket cooling tho, i can suggest arctic cooling accelero S1, or any zalman VF from the VF700 to the VF1000 (700-900-Fatal1ty FS-V7-1000)

Thanks man.... but i live in Malaysia... So... it's hot here to... My temps at windows is 55 and full load at 65/70C... If zalman ZM-VF900 can go in... then i will buy 2 if them... How about the voltage regulator? do i need to pun some heatsinks on it:confused:

Btw... How did u get 756/1836/1944.. my asus never go over 700Mhz Core / 2000Mhz Mem ?

[Mussels]

BTW... is there any good cooler for 8800GT or good Water Block?

Accelero S1. its a passive cooler, that works awesome. add a fan and you're in heaven. We threw an 80mm slimline on a friends (g92) 8800GTS, and his load is 51C (30c ambient).

The coolers are just mind blowing in performance for their price.

check my mini system for the info on mine, i got 740 core out of it with a bios mod :D

[wolf]

i was at 2000 mem but lowering it to 1944 gave me more headroom on the core for some reason, and 1-2gbps of memory bandwith is fairly insignificant

[ktr]

Yes and no - they should both work even with altered PCB's, but they will slow down to the slowest card.

Lets say:
Card 1 is 600 core, 1000 mem
card 2 is 500 core, 1200 mem.

In SLI, they would run at 500 core, 1000 mem - the slowest COMMON speed.


SOMEtimes, they're too far changed to be compatible - if the PCB is different, i suggest testing before buying, or at least googling for other peoples success/failure stories.

On my sli setup, the slowest card clocked up to the fastest card. My fastest card is in my primary slot...both have massively different PCB. I haven't OC or did any bios modding. And i have done some research, and this is true on all sli setups. The primary card's clock speed will be pass over to the secondary. They are times where the primary clocks are unstable to the secondary...which will result in crashes. To fix this, just switch the cards around.

http://i32.tinypic.com/aauec4.gif

[Bjorn_Of_Iceland]

Accelero S1. its a passive cooler, that works awesome. add a fan and you're in heaven. We threw an 80mm slimline on a friends (g92) 8800GTS, and his load is 51C (30c ambient).

That is if it will fit on your case.. GT + Accelero + fan consumes 3 slot. Get a Thermalright HR-03 GT.. you can fit it in any orientation.. afaik, the top orientation + fan will fit the evga 680i.. not sure bout the 780i..

In anycase, go SLI with yo GTs ^_^ you wont get dissapointed.

[Mussels]

GT + accelero = two slots. you dont NEED a fan on it, and you can fit fans in many places to save slots. (the cooler is a LOT taller than the cards, so you can fit a 60mm fan on top if you wanted)


Just to keep emphasising: you CAN run a GT or GTS on this cooler PASSIVELY. fans just give you even more awesome temps.

Once he has them together, there will be so many ways to get a fan in there, potentially with one fan cooling both cards.