GTX580: 1.025VID: 950/1900/2300: stock cooler: guaranteed?!?

[NapalmV5]

do you think that if a get under liquid cooling my 580 i can push more event with less voltage?



this was a run of 3dm06 made just yesterday , as i said b4, 580 stock cooling... let me share a pic if you guys don't mind ...
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and a koolance ready to go ..

depends on the liquid temperature/flow/how fast the waterblock absorbs the heat

normal liquid cooling same ~voltage.. with extra voltage up to 50mhz core gain

since you got a waterblock go for it!

[NapalmV5]

I have a stability question,

With several loops on crysis using the ambush and GPU maps, maxing everything out I dont have any crashes / artifacts, same with the warhead benchmark and 3DM demo looped several times.

I do get a hardlock with Dragon Age 2, but im NOT sure if its caused by the GPU OC ( 1.088v , 900Mhz Core ) Dragon Age 2 stays at about 50-60% GPU usage.. The music in the background or sound continues but the system hard locks.. its NOT that often though and very very hard to reproduce!

Since GDDR5 has some sort of ECC, whats the best way to test for stability on this ?

simple higher core voltage

[NapalmV5]

Comparing the GTX480 PCB and GTX580 reveals differences and similarities. One thing I noticed immediately on the 580 was the lack of filter caps after the chokes, despite there being spaces for them. On the 480, the caps are present. You will also see on the Direct CUII there are filter caps post choke. Anyone with some tantalums lying around want to fill in the blanks on the 580 and see if it makes any difference in clocks?

Pics (first 2 pics from Hardware Canucks review, 3rd pic from techpowerup review):

all 3x 1.025vidders

[NapalmV5]

^ a few extra mhz/higher performance per clock/increased IQ - texture depth/rez

unfortunately puts great load on the system so i dont recommend it up to you guys

[CryptiK]

Nice work. Can you expand on your comment 'puts great strain on the system' ? They look like 330uf Tantalums, that shouldn't load it up too much capacitance wise although the cap size may change the timing of the circuit inappropriately and a different size may be better. If you feel 330uf is not optimal, can you try something in the 100 - 270uf or >330uf range? The Direct CUII is running 470uf tantalums and the GTX480 uses 390uf polymers.

[NapalmV5]

thanks.. from 4.8ghz i had to lower i7 980x to 4.6ghz then when liquid temp rose had to lower to 4.4ghz unless i kept the liquid cool i had system instabilities

thats i used the very same caps used on the rest of the card: aluminum panasonic ecg polymer 2.5v 330uf 6.0mohm esr

at first i was surprised too just how much load it felt like lol but after the results im ok with it

yeh i couldve gone with 470uf or like the ones on gtx480 but since the waterblock covers over these caps i was in no mood to try different capacitors+capacitances

i didnt test single card went straight to 3x cards but for a single card id say this mod is a go the load wouldnt affect the system as much

[CryptiK]

That's odd, to me that sounds unrelated. Having to lower CPU 400MHz to remain stable and then experiencing instability as liquid temps rose sounds system (not VGA) specific. Unless your cards became unstable at same clocks/voltage (and in fact you said you gained clocks), I'd suggest it's something other than those caps causing the CPU issues.

The caps don't cause the card to draw more power, nor run hotter. They just filter the mosfet DC output and the only added load would be the initial inrush current at power on when the mosfets have to charge the caps.

[p3gaz_001]

depends on the liquid temperature/flow/how fast the waterblock absorbs the heat

normal liquid cooling same ~voltage.. with extra voltage up to 50mhz core gain

since you got a waterblock go for it!

ok, tnx for the advice, i'm waiting for a 360 rad, then i'll koolance my evga ...

[Rubeola]

Hi, guys!
I bought a GTX 580.
When I placed in the PC...My VID GTX 580 is 1.000V

Nvidia Inspector

[M_T_M]

What is the command for flashing GTX 580?

[vern]

Nice 1V VID

[Asmola]

What is the command for flashing GTX 580?

If you use nvflash (and you should ), use commands "nvflash -r" first, it disables protections. Then "nvflash -4 -5 -6 580bios.rom".

[M_T_M]

I tried but does not grip "nvflash -r" first and "nvflash -4 -5 -6 580bios.rom"

[CryptiK]

You have to call your saved bios you want to flash 580bios.rom in that example too btw.

[aussie-revhead]

Nice 1V VID

How well would you expect this to overclock? I have one that I havent tested yet and have listed it for sale, so tempted to keep it....

[Postmodum]

Any ideas of when is the Gigabyte GTX580 SOC going to be launched?

[p3gaz_001]

Hi, guys!
I bought a GTX 580.
When I placed in the PC...My VID GTX 580 is 1.000V

Nvidia Inspector

hi, i've got the same vid, msi reports 1.000 but gpu z reports lover vid,



wich one is the correct one?

[cole2109]

BUT...
1. 3DM11
- SS + 6core CPU@5300MHz + GPU@990MHz on water. Score 75xx
- SS + 6core CPU@4000MHz (just to see the difference) + GPU@990MHz on water. Score 75xx

2. 3DM11
- AIR + 6core CPU@4400MHz + SS on GPU@1080MHz. Score 77xx
- AIR + 6core CPU@default + SS on GPU@1080MHz. Score 77xx-7805

WTF i don't understand this 3DM11
This is not possible. Why 1xxxMHz brings no difference?

[Demo]

@p3gaz_001

Both, at idle the VID lowers to reduce temp and power usage.

I probably have the highest stock VID in this thread lol 1.088

[p3gaz_001]

whaaaaaaaaaaa 1.088? ahah ... wich temp do you get on your sys?

[p3gaz_001]

BUT...
1. 3DM11
- SS + 6core CPU@5300MHz + GPU@990MHz on water. Score 75xx
- SS + 6core CPU@4000MHz (just to see the difference) + GPU@990MHz on water. Score 75xx

2. 3DM11
- AIR + 6core CPU@4400MHz + SS on GPU@1080MHz. Score 77xx
- AIR + 6core CPU@default + SS on GPU@1080MHz. Score 77xx-7805

WTF i don't understand this 3DM11
This is not possible. Why 1xxxMHz brings no difference?

btw i need to know how come your 580 is running @ 1ghz
stock cooling? (i don't think) wich brand is yours, how much voltage for 1ghz? plz

[Punisher!]

btw i need to know how come your 580 is running @ 1ghz
stock cooling? (i don't think) wich brand is yours, how much voltage for 1ghz? plz

I think he wrote "water".

[Demo]

whaaaaaaaaaaa 1.088? ahah ... wich temp do you get on your sys?

Temp on the GPU ?

Thats a bit hard to compare due to the auto fan speed profile, I've been running my voltage at 1.000 for some time already while using the reference EVGA SC speeds, (797core) and its pretty fine. Im not sure how much the 0.088v adds to the heat as well.

Probably gonna try 1.000 @ 850Mhz core next week, highest I tried to OC my card with at stock volts is 900Mhz Core, I dont know how to start or even check for memory stability so I didnt touch it.

[cole2109]

btw i need to know how come your 580 is running @ 1ghz
stock cooling? (i don't think) wich brand is yours, how much voltage for 1ghz? plz

Stock cooling? No hehe. Water. Max on water with open window 1006MHz.

[Demo]

whaaaaaaaaaaa 1.088? ahah ... wich temp do you get on your sys?

Its a bit hard to compare the temps since the fan is auto adjust and keeps the card under 85c at all times. Does 0.088v generate that much heat? I mean I've been running my card at 1.000 at EVGA SC speeds and I really cant tell the temperature difference but the card runs fine at 1.000

I also wonder why evga decided to give this card a stock 1.088v, i mean it runs perfectly fine at 1.000v and it OC's to 900Mhz core at stock VID.. maybe Im not stressing the card enough with games/3dmark11/heaven2.5 thats why I dont see it go unstable at 1.000v ?