Safe VRM temps on a 4890 ?

[Buckster]

my Asus 4890 seems quite stable @ 995/1100 - with 1.41volts

temps are quite low about 66C max under ATI tool after 10 mins, and above 75-80C on furmark

but - even after about 20 seconds, 2 of the VRM temps while running furmark go to 106C !

is the answer just not to run furmark ? and that they'll never get this hot in normal usage? or should I lower the volts on the core

thanks, MArk.

 

[Buckster]

under ATI tool the VRM temps don't seem to go much about 70C - quite a difference vs Furmark !! lol

one thing with ATI tool - does it not give a solid 99-100% load on the GPU ? on mine it seems to continuously fluctuate from 88% to 99%

wheras furmark is a solid 100%

 

[ViRuS2k]

to fix your over 100c vrms, do what i did,
extract your bios with gpuz

mod it with XFX black edition Fan Profile
then reflash then your sorted
you could also set 1000/1000 clocks aswell

seems like you would be stable
then also dont forget to change voltage regulator current for the 3d volts to 1.410v

 

[gurusan]

solution = don't run furmark

it's a fail program.

 

[Buckster]

thanks guys

well its quite cool in the room at the moment - but got to the glorious 1000 core - at 1.425 V - memory wasn't stable at 1150 like before at that speed though (oddly) - but was at 1100 (why would the memory be effected by core clock ?)

but temps impressive - after 5 mins of ATI tool, VRMs were 70C, and core 62C (this is with fan at 50%)

 

[ViRuS2k]

Those asus cards are good ehh

best refrence cards i have found yet

better VRM temps and Hgher RPM stock fans XFX black Edition Fans. 48xx rpm

 

[ViRuS2k]

What ever you do though

Dont stress test your card with ATI tool. its garbage for 4890 cards as it doesnt fully stress the card out.

Even though it will report 99% gpu usage it wont be putting that much load into the core at all.

Use OCCT, and tick ERROR CHECK.

after 10 minutes if you have no errors then your 100% stable.

most of the time running furmark and ATI tool i didnt get problems or errors
but OCCT defected errors those programs didnt.

 

[ebilcake]

solution = don't run furmark

it's a fail program.

+1, For once I agree with you.

 

[ViRuS2k]

Furmark isnt a fail program.

the reason why people getting black screens and what not is becuse of the VRMS.
if your cards VRMS are stable you wont get a black screen, some cards has unstable VRMS at high temps some dont.

both asus cards i had ran furmark for 30+ minutes and would have carried on going if i hadnt have stoped them.

dont blame the card blame the crap VRM chips that are used some are great some are weak just like a overclock ect ect.

 

[ebilcake]

Furmark isnt a fail program.

the reason why people getting black screens and what not is becuse of the VRMS.
if your cards VRMS are stable you wont get a black screen, some cards has unstable VRMS at high temps some dont.

both asus cards i had ran furmark for 30+ minutes and would have carried on going if i hadnt have stoped them.

dont blame the card blame the crap VRM chips that are used some are great some are weak just like a overclock ect ect.

Of course it is, it pushes them far more then any game ever will, cards with poor VRM cooling will continue running the latest games fine and will most likely never run into a single problem, so how exactly does it matter if furmark fails or not? It's pointless.

 

[ViRuS2k]

so i guess OCCT is a crap program aswell.

OCCT stresses your card out 10c higher on everything compaired to furmark

i found trials 2 pc game stresses your card out just the same near enough than what furmark does.

i gather thats a crap game aswell lol

you can make up all the excuses you want, im just saying the diffrence between a card that can run it and not run it is down to the VRM quality of that perticular card


furmark can pull about 65amps OCCT pulls about 79amps and Trials pulls about 60amps
if a game requires or stresses the card out more its not down to bad programing its entirely down to the cards internals quality.

 

[gurusan]

Both Furmark and OCCT put the card under loads so high that they would never, ever be seen in any realistic situation.

My card is 100% stable in everything at stock voltage 940mhz core, 1000mhz with 1.375V...yet it crashes after a few milliseconds in furmark or OCCT.

Why use a program as a test that will only reduce your maximum overclock?

 

[ViRuS2k]

Your card is probably stable but like i said.
the reason your card is failing is becuse of a weakness in your cards VRM chips.
thats why some cards can run it no problem and some dont.

 

[gurusan]

Yet it clocks just as high as any other 4890..it maxes out around 1050-1060mhz with 1.45V, so I don't really see how furmark or occt is relevant at all, which is why I was saying it's better to just ignore furmark and occt as tests on ATI cards.

 

[ebilcake]

so i guess OCCT is a crap program aswell.

OCCT stresses your card out 10c higher on everything compaired to furmark

i found trials 2 pc game stresses your card out just the same near enough than what furmark does.

i gather thats a crap game aswell lol

you can make up all the excuses you want, im just saying the diffrence between a card that can run it and not run it is down to the VRM quality of that

You didnt really answer my question did you, if all games and appz work perfecty why should we care about furmark?

Trials 2 works great here, downloaded the demo earlier, yet furmark within minutes, why should I care?

 

[ViRuS2k]

I guess its nothing to worry about then

but its freaky how some work and some dont there must be a reason as to why i stated the facts above as to why..

 

[Colinsky]

My stable overclock is based on whether or not I get any crashes when I'm just gaming anyway. Used to own a 4870 which could cook eggs under furmark but the vrm temps were fine gaming.
The program is useful for a quick tester though, pushing the card to its potential and that bit further to see if it'll cope or not. As mentioned, wouldn't want to run 30 minute sessions with it though, sizzle sizzle!