MIS Kombustor perhaps?
I think there are issues overvolting and possibly overclocking the GF600 cards. The software will turn up eventually, if there isn't already an overclocking kit. I don't have a GF 600 card so I haven't really looked into this.

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nope, same results. i must be waiting until they evolved that all softwares. :-/

Tryed Win7 64-Bit , same results :-/

Apparently Voltage auto-adjusts on reference cards, so you can't manually do it, but it should increase with the GPU clock.
This change makes OC'ing the GF600's more like OC'ing the i7-2600K and similar CPU's which automatically adjust the Voltage as required.

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hm , i expirienced more raising the clock results in errors, no automatic voltage raising here on this card :(

Must be only in 3D Mode , in games or benchmarks.

If it causes errors then don't increase the clocks.
It's possible that the reported Voltage is just a reference one, read off the cards reference Voltage or the driver, and not a real live reading.

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everthings fine now, i think the card needed some "burn-in" time. Now voltage settings work but low benefit.

Which clock speeds do you reach?

Automatic voltage scaling is linked to turbo mode, which GT640 doesn't support.

MrS

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Scanning for our furry friends since Jan 2002

what will happen when the gt 640 starts to run a cuda 3.1 app ?

i asking why i though i what to put this card between my two GTX 460 .

Any knowledge about this out there ? The fury ones can answer this question ?

oops ! I did it :(

my two gtx 460 have been excluded, so ich removed the gt 640 again.

now one gtx 460 calculating his first non beta cuda 4.2 app !?

good or bad !?

Edit:

Could someone anyone help plz, if that all three cards will run together that will save me about 100 watts per hour !!!

Great ! U did well. Now i am crushing only 4.2 tasks . jeepieh !

But still cant overclock the gt 640 with any overclocking software, i have to wait until they evolved their software.

Running 3 cards on a Asus P5N-T Deluxe....

Cant clock the GT 640 , under Windows 7 i can use all 3 cards at the same time. That saves me 100 watts per hour. great

Side note: 100 watts per hour -> 100 W. Power is already divided by time.

MrS

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Scanning for our furry friends since Jan 2002

Side note: 100 watts per hour -> 100 W. Power is already divided by time.

MrS

ok, then i saved 0.1 kw/h. greetings to the fury ones :)

Each hour you save 0.1 kWh :)

MrS

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Scanning for our furry friends since Jan 2002

ooook, i managed my overclocking problem so far. Used "Nvidia Inspector" to clock the gt 640.

But dont now if stable, or it will crash wen it gets a cuda 3.1 app again.

the "overclocking" doesnt work, in real there was no overclocking.

Does have anyone news about runtimes of long tasks with Cuda4.2 on GTX640 cards?

Rantanplan: I have seen that it takes about 55000 seconds per work unit. However one of your computers labeled to have a GTX640, had pretty much task failures?

I try to decide, if I shall buy an additional GTX640 (two slots) or a GTX 560 TI 448, which a friend might bring me from USA next week. The first would be my choice pricewise as well as it will get only Cuda4.2, and represents a newer technology, the second seems to me still expensive as it is an “older” card and might also consume much more energy as I could verify with my actual two cards from the same series.

had pretty much task failures?

i overclocked by 250 Mhz , now its only 200 Mhz , just trying.

As I am not very good in computers, might the GT640 work for GPUGRID in a second slot with a GTX670 in the first? My motherboard has two slots and the computer for the GTX640 actually does not exist.

that will work, no problem. I think but only the GTX is not a triple slot graphics card.