I'm trying to overclock my Pentium M 2.26GHz so that it will play BDs without stuttering audio. I got it running at 154/616MHz bus clock for a CPU speed of 2.62GHz. It was OK at that speed, but when I turned it back on a couple hours later, it was back to 2.26GHz. I can't get it to stick to my higher speed. This applies to all overclocked settings. It always reverts to the original speed after a cold boot. My PC stats: AOpen i915GMm-HSF Socket 479 motherboard Pentium M 780 "Dothan" PCI-E x16 Radeon x1950Pro 2GB PC2-4200 ram 250GB IDE+250GB SATA

Could you not stick to ONE thread ? http://www.computing.net/hardware/w... http://computing.net/hardware/wwwbo...

Those were about different things that had nothing to do with my troubles in overclocking, except for maybe the very last post on the second thread, which really just hinted that I might overclock. And I did. Now I'm having problems getting the overclock to stick. I can't even overclock it ONE MHZ without going back to the normal bus clock after a cold boot. It is keeping the time, so i think the bios battery is OK.

From a Tom's Hardware review of your board/CPU combo: "...when rendering videos and graphics or encoding video and audio files to popular formats such as MPEG2, MP3 and MPEG4, the Pentium M is clearly left in the dust. Unsurprisingly, these fields are dominated by the brawnier Pentium 4 and Athlon 64 processors. For these applications, the higher power consumption of the desktop processors is tolerable, since they actually offer a tangible performance increase in return for their power use. As a result of the lower signal strength used between the motherboard components and the CPU, mobile chipsets aren't especially suited to overclocking." http://www.tomshardware.com/2005/06...

Are you able to lock the PCI/PCIe busses to 33/100MHz on that board? If so, make sure that they are LOCKED! See, some video cards have zero tolerance for overclocked video busses and will cause the behaviour you have described. They pretty much disable/bypass video bus overclocking. If you have one of these picky cards on a board that doesn't allow you to lock the video bus, then you're pretty much stuck running the entire "powertrain", including the CPU, at stock speed. My old A-I-W 9800Pro rendered the overclocking features of an AGP-unlocked Soyo board useless. It always bypassed my overclocked CPU settings, no matter what. Took out the ATI, put in an nVidia (which have always been more overclock-friendly, IMO), and bam! an overclocked system! If you really wanna play BDs on that system, your best bet is to buy a video card that has a unified video decoder. With only a single core procesor, you simply lack the "processor ponies" required to be able to do it without a UVD. A 400MHz overclock likely won't cut it. Ultimate 939 system Opty 185 @ 3.2GHz 1.45v SLI 8800GTS 640MB, BIOS-flashed to 625/1458/1950 4GB OCZ DDR400 LG HD-DVD/Blu-Ray combo A8N32-SLI Deluxe 13.9K 3DMark06; 55K '01

thanks jam and jackbomb. you're probably right about the PCI not being locked. Would I lock/unlock it in the BIOS? i don't see anything like that here.

"Would I lock/unlock it in the BIOS? i don't see anything like that here." I just looked up your board. From what I've seen on other message boards, it appears that your board doesn't allow the PCI/PCIe busses to be locked. Your x1950Pro must be bypassing your overclocked BIOS settings like my old A-I-W 9800Pro did. That's the only thing I can think of that would cause your board to switch back to its default clock settings at start up, other than a hooped BIOS (very unlikely, since everything else is working fine (?)). If you have any spare PCI video cards around, you might wanna pop in one of those and try overclocking the CPU. Ultimate 939 system Opty 185 @ 3.2GHz 1.45v SLI 8800GTS 640MB, BIOS-flashed to 625/1458/1950 4GB OCZ DDR400 LG HD-DVD/Blu-Ray combo A8N32-SLI Deluxe 13.9K 3DMark06; 55K '01