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On July 19 2013 07:46 Trfel wrote:
How does overclocking work on laptops? Is it turned on automatically? Are the laptops designed handling the extra heat from overclocking (specifically, the Lenovo U430 that's going to be coming out this summer)?
Turbo boost is automatic.
Overclocking does not refer to turbo boost even though turbo boost is an automatic overclocking feature. When people say overclock, they generally mean going into the BIOS and raising the multiplier and voltage themselves. Most laptops do not allow for overclocking at all.
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On July 19 2013 07:47 skyR wrote:Show nested quote +On July 19 2013 07:46 Trfel wrote:
How does overclocking work on laptops? Is it turned on automatically? Are the laptops designed handling the extra heat from overclocking (specifically, the Lenovo U430 that's going to be coming out this summer)? Turbo boost is automatic. Overclocking does not refer to turbo boost even though turbo boost is an automatic overclocking feature. When people say overclock, they generally mean going into the BIOS and raising the multiplier and voltage themselves. Most laptops do not allow for overclocking at all.
Thanks for the info! I understand a lot better now. So the laptop would be designed for the automatic turbo boosting, right?
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Yes, laptops would be designed to be able to handle the heat output of the processor and various components.
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It won't be OCed unless it explicitly states it. Laptops are usually awful at dissipating heat, so they're rarely overclocked and rarely able to be overclocked (and that's if the hardware can even do it).
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Thanks, I understand the difference between turbo boost and overclocking much better now. Much appreciated!
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I have a Sapphire 7950, OC Vapor-X with Boost edition.
I've disabled the in-built OC button in favour of manually overclocking through MSI Afterburner, I now have it running stable at 1100 core/1250 memory on 1.094V (though this card vdroops pretty hard).
The problem is, the card will downclock itself to 850Mhz core speed if there's a video going on in the background while I play something, even when the game is fullscreen. Is there some way to override this automatic downclocking? I want to be able to have a stream in the background while playing games with my preferred overclock.
Thank you all in advance for your help =D
EDIT: I've found the answer elsewhere, but it's a pretty brute force strategy. If anyone else has this problem, you can force the max clock by turning off PowerPlay. This can be done by unlocking unofficial overclocking in MSI Afterburner and setting the Unofficial Overclocking Mode to 2.
If anyone has a more elegant solution, please let me know!
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Sounds like a setting that you'd change in CCC.
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Normally to duplicate picture between monitors/tvs you need both to be the same resolution, which can involve downscaling. Is there some kind of program that can do this in real-time without the need for downscaling, similar to how streaming works.
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United Kingdom20326 Posts
Streaming involves downscaling, you're just looking at screen caps that have been live downscaled using some filter, not entirely sure what you are asking for
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On July 20 2013 07:18 Cyro wrote:
Streaming involves downscaling, you're just looking at screen caps that have been live downscaled using some filter, not entirely sure what you are asking for
The ability to mirror one monitor to a second, lower resolution monitor in effectively real-time. Essentially what you'd do with "duplicate" if you had two devices of the same resolution. Just good enough to not have video/audio sync issues if you were watching the second, but not needing to be good enough to play a game on.
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This is odd.
So I got my new rig running (Thanks SkyR Cyro!) but there is one oddity... one of my HD partition disappeared.
Originally my HDD has 3 partitions, but upon installing it onto my new rig one of them is lost... how can I diagnose this problem?
God I hope I didn't format it by accident... that would be kind of bad.... hahahaha.
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Do you see it in disk management and did you assign it a letter in disk management?
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I'm on win7 and this suddenly pops up
"Windows has detected a hard disk problem"
It's asking me to back up my hard disk, which makes me a little scared. Anyone know what's wrong and what i should do?
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Your HDD is probably about to fail.
Check the Smart values with your manufacturer's diagnostic tool (so Western Digital or Seagate most likely) and run a disk check by opening command prompt and typing chkdsk c: /f
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On July 20 2013 12:22 skyR wrote:
Do you see it in disk management and did you assign it a letter in disk management?
It worked! Thanks~
+ Show Spoiler +I probably should be able to figure it out myself but I forgot the name of the disk management tool... after Googling and found it, assigning a letter was really easy.
Really curious why Windows decided to not assign a letter to the partition that is in front of the disk.
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Windows is pretty random (and bad).
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Yeah, wait until you have to use DISKPART through the command-line because the Windows detected the drive but won't let you create a partition through Disk Management.
Still not sure what the hell happened there.
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What is the most limiting factor in how VRAM is efficiently used in a video card? For example, in comparing 4GB vs 2GB GTX 760 or 770 at 1920x1080, bus width (256 bit I think) limits how effectively the card's VRAM is used. If this is correct, then is it safe to assume any card at 256 bit over 2GB caps out at a certain point, no matter the clock speed of the card? So a 4GB GTX 760 or 770 isn't really 4GB, it's marketing at that point and are better off just sticking to VRAM values where the card can actually fully utilize it?
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On July 20 2013 20:43 BryanSC wrote:
What is the most limiting factor in how VRAM is efficiently used in a video card? For example, in comparing 4GB vs 2GB GTX 760 or 770 at 1920x1080, bus width (256 bit I think) limits how effectively the card's VRAM is used. If this is correct, then is it safe to assume any card at 256 bit over 2GB caps out at a certain point, no matter the clock speed of the card? So a 4GB GTX 760 or 770 isn't really 4GB, it's marketing at that point and are better off just sticking to VRAM values where the card can actually fully utilize it?
The GPU takes the coordinates of a polygon and starts going over the pixels on the screen where the polygon will end up. For every pixel it draws, it goes into the textures the polygon uses. Looking up things in the texture will always be a set amount of work for each pixel on screen. The size of the textures and their RAM use does not matter for this. Using higher resolution textures and more RAM for them does not need more bandwidth as there's not more work to do.
The memory bandwidth is important if there are more pixels to draw. It's important to have for higher screen resolutions, or for multisample style of antialiasing, and when overdrawing a lot of polygons over the same pixels for puffs and clouds in for example explosions.
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EPT
