4890 VOLTAGE and CLOCK tweak tool

[BATCH71]

Just sharing this awesome piece of software.

I would like to do a hardmod on the 4890 when it is available but for now this is the next best thing

BTW, this did work beautifully for me with a pair of 4890's to 1000core at 1.4v

Good Luck!!!!

4890 TWEAKER

Dave

 

[McRhea]

Sweet! I just started searching for a 4890 voltage tweaking tool. Thank you sir.

I'll report back on what I can do with my MSI 4890... it's OC'd at 925/1100 through the CCC currently, but I can't push it higher than that. Hoping I can hit 1000/1200 with a little more voltage. What's the 4890 stock voltage?

 

[RussianSensation]

I'll try this out as soon as my MSI 4890 gets shipped. Will report my results back here. Thanks for the linky OP.

 

[yh125d]

My HIS hit 990/125 on stock voltage and cooling using autotune, I need to get around to seeing what it can do with a Musashi and a voltage bump

 

[BATCH71]

You are welcome and TTT with this fine little proggy!

Dave

 

[Sylvanas]

This was linked a while back, it's a good program that still has a few kinks but I've not had any problems with GPUtool.

 

[BATCH71]

up for the voltage seekers!

 

[Elfear]

Thanks for the link OP. I'm currently using a combination of Rivatuner, an add-on called Voltage Factory, and CCC. Voltage Factory can be set to start automatically upon boot-up with separate 2D and 3D voltages. I use a separate CCC profile for gaming and for surfing. I wish it were automatic like Voltage Factory but it isn't that big of a pain to click a profile before gaming.

I'll have to give this a shot and see if it offers any extra functionality.

 

[BATCH71]

I also did the Vfactory before and it works fine.

This is more convienient IMHO and you can do a memory voltage adjust also

and....

It works very well with xfire. I was not xfired with vfactory so I couldn't tell you if it works or not but...........this program does

Dave

 

[Spikesoldier]

This card does not support voltage control.

owned! (sapphire hd4890 vapor-x)

 

[Sylvanas]

Originally posted by: Spikesoldier
This card does not support voltage control.

owned! (sapphire hd4890 vapor-x)

Try Voltage Factory. All 4890 should have the physical circuitry to support voltage control.

 

[Nafets]

Originally posted by: BATCH71

...This is more convienient IMHO and you can do a memory voltage adjust also

Rivatuner also can adjust (????) voltage.

/wi1,71,18,3c - Default 1.20v setting.

It is easier with GPUTool though. I'll give you that.

Originally posted by: Sylvanas

Try Voltage Factory. All 4890 should have the physical circuitry to support voltage control.

But they don't.

Newer HD4890's built with non-reference PCBs (Sapphire Vapor-X, MSI Cyclone, XFX ZDFC) lack the necessary Volterra VRM chip(s) to utilize software voltage control...

 

[yacoub]

Can you control fanspeed as well, preferably dynamically based on core temp?

 

[yusux]

"Expect a lot of bugs(and crashes) and broken features."

used it on 4870 b4, about as true as it gets

 

[BATCH71]

Personally, I have not seen the bugs. Yet

Dave

 

[BATCH71]

up

 

[McRhea]

So what voltages are considered "safe" for the 4890? Default voltage for my MSI 4890 appears to be 1.31 or 1.32 (can't recall the exact voltage). I used CCC to increase my Core / Memory to 1000/1200 and was still getting artifacts at 1.40 voltage (I didn't touch the memory voltage slider). Without knowing the safe upper limit voltage on a 4890, I didn't want to push the voltage past 1.4, so I'm back to my default OC of 925/1100 on stock voltage (which is rock solid).

 

[Tempered81]

I don't think a 4890 can take more than 1.449v unless hard-modded. Not sure what the "safe" voltage is though. Probably stock?

 

[McRhea]

Originally posted by: Tempered81
I don't think a 4890 can take more than 1.449v unless hard-modded. Not sure what the "safe" voltage is though. Probably stock?

Hah, true.

Of course when I say "safe" I really mean "acceptable risk when OC'ing." For some CPU's, it's generally recommended to stay below the 1.4V threshold to avoid damage (damage could happen before the 1.4V limit of course, but in general, a decent chip can take 1.4V).

So you're saying the max threshold is 1.45V for the 4890? That sounds about right, but can you link where you read that please? I want to be absolutely sure, hah.

 

[Tempered81]

Check this thread
http://forums.techpowerup.com/showthread.php?t=90149

or this
http://www.google.com/search?h...re+1.45v&aq=f&oq=&aqi=