if after market cooler maybe on load 4870 around 70C..
actually the gpu can stand till 100+C
only ppl sit beside it sweat while gaming..

FYI, CM EXtreme Power 430W "Non-true power"

Time it with the efficiency, you won't get 400W for this PSU

if rated @ 300W also is just safe..
4850 takes 10A ~ 120W
remaining for the system another 100W etc..

Actually this GC acts like a heater to warm my feet when i'm on the PC at late night..
100+C and still remain safe??? It seems the R770 was forged in the depths of hell

haha that's the main reason i get non-reference cooler..
quite n low heat.. even mine 60+C also like playing game inside hot spa.. tonight will go there again

This post has been edited by 8tvt: Sep 9 2009, 03:34 PM

A hot spa sound sweet!
Mine is like playing games in one of them really hot European Sauna...

I think you guys need to change a better airflow casing so that can suck out those sauna juice out

This post has been edited by stevenlys: Sep 9 2009, 04:26 PM

the problem is the heat still hovering n circling inside the room..
need to suck them outside..

I have no problem ventilating the heat outside from inside my room,
but they somehow manage to sneak back into the room...
Such bastards they are.. They are sneaky and cunning like a 'cicak'

arghh psu also so expensive ,T.T have to sacrifice rm200+ for ensure my gc wont blow up = =

small investment only to ensure other components don't die mah ..actually gpu are able withstand temp above 100c+ as stated by 8tvt but not recommended in long term usage. used to own the 2900XT, really hot beast maybe it's individual. had issue with no reference card. ended up rmaing into 4850's reference card then slap a after market cooler on it ...still alive and kicking after 1 year+ of usage

you guys 4850 single slot or dual slot cooler?

all 4850 is single slot cooler which is 2 ugly 4 me that is why i take 4870 instead because dual slot rocks...looks like in few hours time i will officially announced that my 4870 is outdated that i want 2 roll over it at full speed with car tyres after the 5870 launch

This post has been edited by skylinegtr34rule4life: Sep 10 2009, 01:15 AM

mine was the first batch 4850 which comes with single slot cooler. already changed the cooler already so technically it's dual slot i guess...

mine gs is dual slot.. non-ref though

Mine is a reference cooler thats prone to blow hot air into inside the case
But I had already taken measures long ago when I modded my side panel by cutting out a huge gap (about20.5cm x 20.5cm)and fit one of them cooler master's 200mm 'MegaFlow 200 Transparent Silent Fan' to suck all them hot air out of the casing..
The case now looks industrial and unconventional/unorthodox, but I prefer practicality over aesthetics....

This post has been edited by JoBigShow: Sep 10 2009, 05:33 AM

done already??

My Sapphire 4870 1/2GB DDR5 produces vertical lines and funny artifacts...All this happens while playing SF4 just this morning...

I decided to take out the card and reinsert it...no avail...it still has the lines during POST and distorts the Win logo when loading to windows...

So I pull it out and i felt like it was a memory issue...so I decided to disassemble the heatsink to have a peek of the GDDR5, to see from which company it came from...

BUT, I was shock when everything is revealed!!!!

Grey colored thermal paste???!!! THAT Muchhh???!!!!



Who were they hiring at the Sapphire factory in China???? Chun Li????


Or did Chun Li had PMS that day at work???


Before I jump to any conclusion, I would like to ask Sapphire 4800 series owner particularly the 4870 models, who had ever open up their heatsink,

Does your Thermal Grease grey in color????

Wow thats a lot of paste smeared messily!
Probably "Chun Li" applied a big blob of paste in the factory and resulted the paste to get smeared around, then assisted by escaping trap air bubbles/pockets and uneven thickness of paste application.
All u need is a rice grain worth of good thermal paste, spread thinly and evenly.

Yes its gray, because it's consisted of clay-based(silicon) compound for non-conducting/insulating purpose. There are white paste...silicon and metallic(blue-ish) based paste which has excellent thermal-conductivity to transfer heat away from the proc to the heatsink, etc.

Xigmatek PTI-G3801 Silicon Thermal Grease is GRAY
Cooler Master Thermal Fusion 400 - RoHS RG-TF4-TGU1-GP is GRAY
Cooler Master Ice Fusion is WHITE
etc...

@antonio
not RMA?
push the ram too much?