Overdrive for Radeon cards

[faye]

Hi,

what is overdrive?

I thought it came with omega driver, but no it is not.

where can i get it?

I have a pro flashed to xt, without performance gain.
i want to try something else.

 

[Matthias99]

It's included in the ATI drivers, and should be enabled automatically on the cards that support it (9600XT, 9800XT, possibly X800XT?)

If you flashed your card to an XT and it's not in the driver control panels, then I don't know what to tell you. It should be there. Maybe try uninstalling and reinstalling the drivers?

 

[Navid]

I have read that the temperature sensor is only on the cards with 256MB of memory. So, even if your card has the 360 core, it will only have the temperature reading (after flash) available if it has 256MB of memory.

If there is no temperature sensor, there will be no overdrive tab.

You can still overclock. The only thing the overdrive tab gives you is automatic reduction of the the clock rate when overheating. That seems like a fundamentally flawed scheme in my opinion!
The card heats up when it is driven hard. It is driven hard when you need it to be fast. That is not a good time to reduce the clock rate. The best solution seems to be to overclock your card and make sure that it will not overheat under load (improve cooling if necessary). Then, you should be all set.

Does your card have 360 or 350?

If it has the 360 core, you should get performance increase by flashing.

 

[apoppin]

Originally posted by: faye
Hi,

what is overdrive?

I thought it came with omega driver, but no it is not.

where can i get it?

I have a pro flashed to xt, without performance gain.
i want to try something else.

your 128MB pro doesn't come with it - even after the flash - you have no temp diode.

256MB Pros automatically enable it after the flash to XT.

 

[faye]

oh i see, so it doesn't do much ..

but like i said in other posts, after flashing to XT, i don't get any perforamnce gain infact, i little bit drop in fact.

i want to flash back to a 128mb pro, but too bad i didn't backup my old bios.
sure i can oc it and pass xt speed when it was a pro., but now i can't overclock, not even 3%. anything pass 3% i will have artifacts.

oc with less than 10%, u won't see a different. only 1 or 2 fps gain, doesn't mean anything to me.

EDIT: actually i am looking for a good Radeon 9800pro 128mb hynix R360 bios.. can anyone give me a hint... i only see 256mb of r9800p

 

[Navid]

You didn't say if you had 350 or 360!

 

[apoppin]

Originally posted by: Navid
You didn't say if you had 350 or 360!

he has r360 but flashed it with the wrong BIOS (and neglected to back his old one up; i didn't even think of using the HD, since i used a floppy).

faye, Isn't the 128MB XT w/hynix still listed on the page with the link i posted for you?

Sure it is

Sapphire Radeon 9800 XT 128MB DDR Hynix 2.8ns 412/365

And OverDrive is VERY useful for O/C'ing the 9800xt with thermal diode.

 

[faye]

oh, i didn't say it failed.

it flashed successfully.. and now i am using it as a r9800xt, however, i just don't see any performance gain.
that one, sapphire radeon 9800xt gives me even more troubles.. i can't even use the stock(400/365) clock speed. it has artifact at default speed., so i switched back to Club3d 9800xt bios.

ya, i used my Harddrive to flash it instead of the floppy... will i get a different? i mean speed different, i thought if i fail i will only get a dead card or something, not a slower card... cuz i don't have a floppy drive installed on this machine.(cuz i can't find a silver faceplate floppy drive by that time and i thought it is not that useful anymore since cdrom is so popular).