Quadro FX 3800M in HP EliteBook 8740w limited to performance levels 0 and 1

detae · 04-13-11, 04:45 PM

I recently bought three HP EliteBooks with Nvidia Quadro FX 3800M cards. They are no able to operate in performance levels 2 and 3. The perfomance is seriously crippled. I tried few versions of drivers (Currently running latest beta). I tried all suggested sollutions except the new vga bios flashing. Nothing works. Driver correctly detects ac power and correctly switches Performance Mode. But newer reaches Performance Level 2 or 3. In Windows the performance is ok. I flashed newest system bios. I am running Fedora Core 14 64bit. Any suggestions? Thanks.

**danix** · 04-14-11, 12:15 PM

The same BIOS bug that's responsible for DreamColor panels not working on the EliteBook 8740w [1] also causes these notebooks to be unable to enter the maximum performance level.

I don't think a fixed BIOS has been released by HP yet, but we did get indication from HP that they were planning to include the fix in a future BIOS release. If you need this fixed sooner, you can apply the workaround identified in the thread about the panel.

[1] http://www.nvnews.net/vbulletin/showthread.php?t=159544

detae · 04-15-11, 04:24 PM

Thank you very much.

I applied the workaround and everything works perfectly.

04-14-11, 12:15 PM	#2
danix NVIDIA Corporation Join Date: Feb 2010 Location: Santa Clara, CA Posts: 237	Re: Quadro FX 3800M in HP EliteBook 8740w limited to performance levels 0 and 1 The same BIOS bug that's responsible for DreamColor panels not working on the EliteBook 8740w [1] also causes these notebooks to be unable to enter the maximum performance level. I don't think a fixed BIOS has been released by HP yet, but we did get indication from HP that they were planning to include the fix in a future BIOS release. If you need this fixed sooner, you can apply the workaround identified in the thread about the panel. [1] http://www.nvnews.net/vbulletin/showthread.php?t=159544

04-15-11, 04:24 PM	#3
detae Registered User Join Date: Apr 2011 Posts: 2	Re: Quadro FX 3800M in HP EliteBook 8740w limited to performance levels 0 and 1 Thank you very much. I applied the workaround and everything works perfectly.