samona Posted January 26, 2010 Share Posted January 26, 2010 Hi, I was wondering if anyone knew whether low batter power on a tablet PC could be a reason why I keep getting disconnected from the WAP. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/ Share on other sites More sharing options...
Lamez Posted January 27, 2010 Share Posted January 27, 2010 I seriously doubt it. It could be your OS, but from the popular OS's that I know of, they don't do that. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002424 Share on other sites More sharing options...
Philip Posted January 27, 2010 Share Posted January 27, 2010 Well I actually disagree Lamez. Typically when you start running low on juice, an OS will put you into a power saver mode (which is customizable and easy to override.) One of the options is usually reduce amount of power to your wireless network adapter, thus reducing the range on your network card. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002445 Share on other sites More sharing options...
Lamez Posted January 27, 2010 Share Posted January 27, 2010 This is true, I know about the power saver and whatnot. I did not know they did the wireless connectivity. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002447 Share on other sites More sharing options...
Philip Posted January 27, 2010 Share Posted January 27, 2010 Yeah, it can go as far as underclocking your CPU to save power. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002458 Share on other sites More sharing options...
oni-kun Posted January 28, 2010 Share Posted January 28, 2010 Yeah, it can go as far as underclocking your CPU to save power. ? Over or even underclocking a laptop is a huge no-no in the biz. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002760 Share on other sites More sharing options...
Lamez Posted January 28, 2010 Share Posted January 28, 2010 Yeah, it can go as far as underclocking your CPU to save power. ? Over or even underclocking a laptop is a huge no-no in the biz. What biz? Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002779 Share on other sites More sharing options...
oni-kun Posted January 28, 2010 Share Posted January 28, 2010 What biz? Nearly every BIOS chip manufactured for a laptop, does not allow 'extended' BIOS access to even touch the bus frequencies. Dell, IBM, Gateway, Acer and all major brands are infamous for not allowing it. Only Intel speedstep and related can usually be disabled. Save for some high end notebooks, noting the Dell XPS line atleast allow some control. Laptops busses are not meant to be touch, a single 100MHz gained can permanently damage the unit, or literally cause battery failure, or worse. It's why it's prevented. (why am I rambling? .. lol) Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002804 Share on other sites More sharing options...
Philip Posted January 28, 2010 Share Posted January 28, 2010 Nearly every BIOS chip manufactured for a laptop, does not allow 'extended' BIOS access to even touch the bus frequencies. Dell, IBM, Gateway, Acer and all major brands are infamous for not allowing it. Only Intel speedstep and related can usually be disabled. Save for some high end notebooks, noting the Dell XPS line atleast allow some control. Laptops busses are not meant to be touch, a single 100MHz gained can permanently damage the unit, or literally cause battery failure, or worse. It's why it's prevented. (why am I rambling? .. lol) I hope you have something to back that up, because I quote from http://windows.microsoft.com/en-us/windows-vista/Whats-new-in-managing-power-settings: Balanced: This plan balances energy consumption and system performance by adapting the computer's processor speed to your activity. It is the same technology most graphics cards utilize, where they underclock the core to keep it running cooler and consume less power, and when they hit a certain % of usage, they bring the clock speed back up. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002843 Share on other sites More sharing options...
oni-kun Posted January 28, 2010 Share Posted January 28, 2010 I hope you have something to back that up, because I quote from http://windows.microsoft.com/en-us/windows-vista/Whats-new-in-managing-power-settings: I already mentioned speedstep separately. The quote I was answering upon said nothing about "Intel laptops" that were compatable with "speedstep". You cannot underclock a processor on baseline laptops (Do you think all are P4/5's?) Intel speedstep is a propriertary processor feature. You should have read up. EDIT: And you're wrong, undervoltage saves power, not the 'underclocked' bus frequency. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002856 Share on other sites More sharing options...
Lamez Posted January 28, 2010 Share Posted January 28, 2010 I thought the biz was, people making small fuzzy shoes all day, then selling them for cheaps. Dang. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002868 Share on other sites More sharing options...
Philip Posted January 28, 2010 Share Posted January 28, 2010 Okay, my mistake oni. I guess by underclocking I meant bring the speed of the cpu down in general, by whatever means, not specifically changing the clock speed. Perhaps I shouldnt have used the word "underclock." AMD also has a similar feature to speedstep (powernow for laptops and cool 'n quiet for the desktop.) Anyways, it is sort of getting offtopic and I really don't feel like getting into an argument. The point was that the OS will lower the amount of power to certain parts of the laptop when in power save mode thus reducing performance. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1002895 Share on other sites More sharing options...
samona Posted January 28, 2010 Author Share Posted January 28, 2010 WOW! From reading all these posts, I understand that when the battery power is low the OS will reduce the power to specific parts of the computer. One of these parts would be the wireless NIC which would mean the radio waves would have a shorter range, thus not enough power to compete with other users accessing the same WAP with more power and a wider range. Am I close? Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1003150 Share on other sites More sharing options...
Philip Posted January 28, 2010 Share Posted January 28, 2010 Yeah, thats the gist of it. You should have some options to turn off/on power saving features on specific parts of your laptop. So you can have a super dim screen, but keep your wireless with full power, etc. Tweak it until you find the optimal solution for you. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1003174 Share on other sites More sharing options...
JonnoTheDev Posted January 28, 2010 Share Posted January 28, 2010 I have seen network cards where you can set a power saving option. This would be in the device manager in Windows. Possible your PC has one of these. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1003177 Share on other sites More sharing options...
samona Posted January 28, 2010 Author Share Posted January 28, 2010 Thanks for all the support. This is why I love this site. Thanks again. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1003259 Share on other sites More sharing options...
Andy-H Posted January 29, 2010 Share Posted January 29, 2010 Okay, my mistake oni. I guess by underclocking I meant bring the speed of the cpu down in general, by whatever means, not specifically changing the clock speed. Perhaps I shouldnt have used the word "underclock." AMD also has a similar feature to speedstep (powernow for laptops and cool 'n quiet for the desktop.) Anyways, it is sort of getting offtopic and I really don't feel like getting into an argument. The point was that the OS will lower the amount of power to certain parts of the laptop when in power save mode thus reducing performance. I believe you meant 'throttling' which is the opposite of the term 'overclocking'. Throttling is lowering the voltage of the cpu current. overclocking is the opposite. Link to comment https://forums.phpfreaks.com/topic/189886-wireless-connectivity/#findComment-1003373 Share on other sites More sharing options...
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