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post #721 of 5048
Quote:
Originally Posted by BigBruiserAl View Post
just for the bench try1.28 - 1.3 if your temps let you i got a feeling your score will go up my voltage 1.265. However i get the the 2d crashing every 10 min using msi afterburner, took it out and 2 hours crash free so far

Edit: nomraly higher clocks get better scores but not with these cards it seems the performance will drop if the card it not 100% stable not like the old days teh comp would crash and you know you went to far lol
I believe it is because the VRMs are over loaded. It is a safety feature implemented in the new 5xxx cards.
   
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post #722 of 5048
Quote:
Originally Posted by Aiemond View Post
Thanks! I'll DL the crysis demo tonight and try the benchmark. As for temps, do I just run gpu-z in the background and look at the log or is there a program that will let me watch while gaming? Also, when you say playing for several hours, can I do this in multiple sessions or does this have to be at once?

Overall, I am very pleased so far as this runs FAR better than my old card. I had to RMA the first 5770, so I am a little paranoid, but once I gain some experience with OCing I think I will feel better.

Well playing for however long you usually play for. Thats what youre looking for anyways, is the best possible preformance in the games you play for the duration you play them. Thats really the only important "stress" test if you will.

MSI Afterburner has a custom fan setting thing which is super useful and also keeps track of what your highest and lowest temperatures are per session of the program being open. Very good things. Though I am having issue of the GPU getting significantly hotter when I have that open and game vs when I just game, regardless youll see what your temps are at 100% load and be able to determine if your settings are "safe" or not.

Also if your fan is at 100% a majority of the time (trust me you can hear them esp at that speed) then thats another indication you either need to back off, adjust the fan profile or you have some other heat releated issue. I would alter then fan profile first, then move to clocking down then further investigate.

I have two sapphire cards an they warrenty up to 960mhz on the GPU and 1400 or there abouts on the RAM. That tells you they expect some healthy headroom that shouldnt cause damage at those speeds. Obviously the higher you go the more risk you run but as you get into it a bit more youll be more confident about it and should have a good idea how to gauge performance boost vs stupid.
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post #723 of 5048
Quote:
Originally Posted by kkbob33 View Post
I believe it is because the VRMs are over loaded. It is a safety feature implemented in the new 5xxx cards.
There is no such safety feature..overloading is not safe.

Just as well..its more than likely temps on your VRM's that is causing issues. Also, the GPU's dont have very good voltage regulation..adding 2ndary caps is showing good gains in clock speeds [which is a capacitance issue..and not related to the VRM's].
post #724 of 5048
Quote:
Originally Posted by CL3P20 View Post
There is no such safety feature..overloading is not safe.

Just as well..its more than likely temps on your VRM's that is causing issues. Also, the GPU's dont have very good voltage regulation..adding 2ndary caps is showing good gains in clock speeds [which is a capacitance issue..and not related to the VRM's].
I agree with this + i have to add that it may also be cos of the IC regulator chip.This thing cant provide stable power to the core...u GET LIKE 0.03-4 VOLTS RIPPLE...Like setting 1,35 and u get 1,31-1,319 PLUS u whe u set 1,35 u actually have 1,408...The ONLY solution to these 2 problems is the hardmodExtremely accurate voltage regulation...I set 1,340 and i get 1,338 to 1,342!!!
But the wont overheat thats for sure!
    
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post #725 of 5048
please post some crossfire pics so I can drool all over myself
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post #726 of 5048
Quote:
Originally Posted by bartmasta View Post
please post some crossfire pics so i can drool all over myself
lol ..
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post #727 of 5048
hey guys i think im gonna buy 5770 CF from an OCN member for only $350 shipped

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post #728 of 5048
Quote:
Originally Posted by Bartmasta View Post
hey guys i think im gonna buy 5770 CF from an OCN member for only $350 shipped

Go for it
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post #729 of 5048
does anyone here have a 5770 with the egg shaped cooler? Is it better than the normal stock ones?
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post #730 of 5048
Quote:
Originally Posted by Bartmasta View Post
does anyone here have a 5770 with the egg shaped cooler? Is it better than the normal stock ones?
Trying to find out myself so I know which version to buy.
Do the egg shaped coolers overclock as well as the old coolers?

Also, the new 5770s (at least Asus - not sure about others) have Samsung memory now.

Quote:
That's not the only difference either. A closer look at my card and a few close-up card pics with zoom feature on Newegg (very handy) revealed another difference - the RAM. The original 5770 shiped with Hynix memory whereas the V2/rev2 cards come with the same Samsung memory chips as fitted on the 58xx cards. I doubt this will make any difference though, they're rated at the same speed as the Hynix (1.25/5GHz).
Also, is it true CrossfireX (two cards) MUST have use two crossfire bridges? One bridge will not work?
Edited by hexcode99 - 11/26/09 at 2:28pm
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