Overclocking Tri x 290 Question.

[Matson]

I was just wondering whenever I overclock this card...say to 1100 on the core the hardware monitor program im using only shows the core going to 1013....

Iv added a screenshot to show...

 

[bigmac121]

Use gpuz or after burner

 

[Litmoose]

mine does exactly the same, as soon as i put a decent amount of voltage through it, it starts clocking back. I get lower heaven scores at 1100/1350 then i do at stock

 

[r7slayer]

Have you guys got +50% on the power limit? soon as you add more voltage the card starts eating more wattage and it only has a certain TDP which it might be hitting with the increased voltage so it clocks back to stay within the TDP. With the +50% power limit it increases this so you can add more voltage and are able to overclock the core some more.

 

[Matson]

Yeah power limit is at 50%... When running heaven it shows the clocks at 1100/1400 and it shows those clocks in GPU Z aswell before I run the benchmark but for some reason on the hardware monitor it shows the memory at 1400 but the core wont go above 1013 even though iv clocked it past that.

 

[BS Dave]

i'm interested in this as well

 

[Litmoose]

I found using any more than over +40 on the core makes it clock back at the moment.

 

[abjectblitz]

There is a bug with 14.2 drivers, and allegedly 14.1. The power +50% does not work hence it is throttling the card when hitting TDP. Go try 13.12 drivers and you will be able to overclock much further.

 

[Litmoose]

Sucks if that's the case, lose mantle then

 

[8 Pack]

Best driver for Xfire scaling and overclocking is 13.11 Beta 8 we tested em all for benching WR.

 

[Matson]

I guess the power limit not working in 14.2 would explain it then.

Think ill stick with 14.2 for now though. Don't really need the extra fps at the moment as everything runs great. Hopefully they will fix that bug for the next driver.

 

[Litmoose]

same, don't wanna lose the mantle bonus in bf4!

 

[WalderX]

Deffo a problem with the 14.2 drivers, use 13.12 or lower for benching. Here are my 290 results:

I just flashed the 290_Tri-X_OC bios to the card (just for sh**s and giggles really)

RESULTS:

Stock 290 bios:

FireStrike: 8658
http://www.3dmark.com/3dm/2635064

Clocks: 957/1250
Temp: 55 degrees max
VDDC: 1.055 max
VRM's: 54/41

290 OC bios:

FireStrike: 8903
http://www.3dmark.com/3dm/2635347

Clocks: 1000/1300
Temp: 55 degrees max
VDDC: 1.078 max
VRM's: 54/41

I know I can do the same with just overclocking the normal bios (and have) but the card can handle the OC speeds no problem on stock volts so it's just more convenient for me for this to be the baseline.

Best I have got out of it so far:

FireStrike: 10446
http://www.3dmark.com/3dm/2635753

1190
1750
+200mv
+50 PL

Very happy with that score, just 22 points shy of my best 290X score!

Card: Sapphire R9 290 Tri-X
Drivers: 13.12 WHQL

 

[abjectblitz]

This the best I can manage on the 14.2 drivers before it start throttling.
Powercolor 290 PCS+

GPU 1125
Mem 1495

VDDC 43

Firestrike 10235
Max GPU temp 69c on stock fan profile.

Cant be arsed going to 13.12 and lose mantle, hopefully figure out a workaround or just have to wait for new drivers.

I know my card can hit 1270 core and 1625 mem from earlier tests just hitting that stupid TDP wall. Loads of head room once get a fixed driver.

 

[WalderX]

This the best I can manage on the 14.2 drivers before it start throttling.
Powercolor 290 PCS+

GPU 1125
Mem 1495

VDDC 43

Firestrike 10235
Max GPU temp 69c on stock fan profile.

Cant be arsed going to 13.12 and lose mantle, hopefully figure out a workaround or just have to wait for new drivers.

I know my card can hit 1270 core and 1625 mem from earlier tests just hitting that stupid TDP wall. Loads of head room once get a fixed driver.

Those results are very good for that driver, my card wont go over 1180 core with 13.12 but seems ok with 1200 and possibly above with 14.2 (I think because powertune bug is throttling the core down)

 

[Darujhistan]

I take it there's no problems with throttling back @ stock with 14.2?

 

[WalderX]

I take it there's no problems with throttling back @ stock with 14.2?

No I think it is pretty solid on max clocks at stock. Will double check my end though.

 

[Matson]

Not sure what happened there but after fresh installing 14.2 again iv gone up 10 fps and 100 points in heaven now with the 1040 core overclock put back on and hardware monitor is showing the proper overclock now.

Used the proper ati driver uninstaller from Guru3d to remove everything releated to AMD on my system and now im getting 100 points more in heaven and the overclock seems to be going above 1013 now. Its showing the correct overclock of 1100 in hardware monitor.

Gone up 50 points in heaven going from a 1040 overclock to 1100... so it seems like its accepting that overclock fine now and its showing up properly on hardware monitor.