i'm using vantec lapcool4 here....bought from lelong fo rm 55. got a single 160mm fan running at 600 rm..quiet and good i think.my HDD temp always below 40 degrees and my CPU stable at 44 degrees

i'm using twinhead laptop.normally the temp for HDD is around 36 if not spinning at full speed.and my CPU is 44 degrees.but i found 1 problem which i'm not sure wether others face or not.

My cpu's temp went up to 59degrees after 2 hours i close the screen down.it just stayed at 59 and dont come down.and i can feel abit heat at the keyboard area.

i'm using FanSpeed 4.28 to monitor the heat of HDD and CPU.

Opening the LCD screen really helps to cool it down,just tried this afternoon.Temperature stabled at 42 or 44 degrees. but i still prefer to close the lid,so that dust wont collect on the keyboard and eventually enters the com.

BTW standby mode still can download rite?what does it do actually?compared to do nothing mode"?

but u have to consider also,how if accident happens? well,shit happens.then the whole notebook gone la. maybe can try the Evercool fan for laptop.they say it works.

my laptop oso sometimes go up to 59 degrees.but onli after 5-6 hours using it.furthermore,i cant use the Evercool fan..coz my exhaust not same as specified ones.

so much hard work to cool them down..i think a good KDK fan will do the job.hahaha...

i wish mine were"l l l l l l l" but mine were " ) ) ) ) ) ) ) " located at the back beside my battery.so its curvy. maybe its your AMD genrating alot heat.or u download alot?when your HDD spins at full speed then the temperature will increase.

small NB always got heat problem coz there is not much space inside.i'm using 12 inch too.headache.maybe just too concern.

ifnot mistaken,dell's laptop got more air vent.does it?i saw my friend's 640m got 2 air vent beside the keyboard.

i think if we use a normal desktop casing fan to blow away the heat from the exhaust will make a diffrence.coz the hot air wont dissipate fast enough and the exhaust area got hot.will some sort affect the cooling effect on the notebook.

make sure there is no wires or anything near to the exhaust area coz the air flow will be restricted and build up heat.

i think i just found something new about this heat thing. whenever i restart the laptop, the temperature of the cpu goes up.from my own theory:

the heat sink built for the laptop cpu is ngam ngam in size to dissipate the heat created by the cpu.very well designed heat sink...so it wont overheat.this is because in a 12inch laptop,there is really no extra space inside.so,the fan,the cpu and heat sink really works together.

when we restart,there is a short moment where the whole system goes off and the cooling fan too. leaving the cpu and heat sink. since the heatsink is normally made of copper or alluminium,they tend to come to an equilibrium heat state as the CPU,where both of them is at same temperature.so the heat from the hot CPU goes over to the heat sink.

when the laptop started again,the fan started to run, but the heat sink's temperature had already risen to a higher level. with the assumption that the fan had a constant heat dissipation, therefore came to the conclusion that the CPU temp is higher after restart.

If the fan can dissipate those extra heat from the duration of shut down, why does the temperature stay fixed .Therefore i suggest that the CPU, heat sink, and fan are perfectly engineered to work together. Maybe they just ignore the problem that people do restart their laptop..sometimes la..for software installation.

when used for few hours..then the heat will just build up..mine will shoot up to 59 degrees and stay there.then can feel the heat at the keyboard.
BTW anyone hadopened any laptop before?i'n still new with my laptop.dont know the design inside.cant really figure out hot to make it cooler

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Added on February 12, 2007, 2:27 pmi just recheck the restart thing..really true..before i restart..it was 40degrees..after restart now is 52 degrees.

This post has been edited by bobbychin: Feb 12 2007, 02:27 PM

well, i tried something new again..when the laptop cpu's temperature is high, i just close the screen and let it go to standby mode.that time the processor wontwork and the HDD will spin slow.but the laptop cooler below still running at full speed. this will cause it to cool down the cpu alot..coz the heat generation is "0" and the fan still extracting heat.

in the end..from 59 degrees drop back to 40+ degrees when i open the screen back..like giving it some time to rest.

i'm using twinhead, but i think using the latptop in the bed is a bad i dea.it depends on model actually.if the laptop air intake is at the side then ok la.like like the air intake is below,and there is many vents below.if put on bed,then the heat wont go away..sor short time,maybe it works,coz they got contact with the bed..after long time.guarantee you laptop burn.

once again,depends on design..if there is a hole at the side to suck air in and out..then would be fine i think.

i would like to ask something off topic here,any can help?
my windows XP will only fully loaded after 3 min. the 1st minute very fast..when the background picture came out,the processor and HDD some sort of not working for 2 minutes...resting for 2 mintunes..before continue loading the wondows icons.

anyone know wats the reason?very suddent change in my laptop here.

tried msconfig but still does not help.maybe its the antivirus thing. Norton is better than AVG coz they detect more and faster in detection.

btw,put the com on standby really cools the CPU down..tested many times.you all should try out too .

i heard about the ondervoltage thing from my uncle too. He had worked in the computer field for more than 20 years. i actually consulted him before buying my laptop.he told me bout this undervoltage thing and some chips are ultra low voltage.

normal chips will use 5 volts and 0volts as I/0 in the processor.un ultra low voltage case it usses 1Volt and 0Volt...the advantage is..energy saving lo.BUT !!!!..there is 1 problem...

if 5 volts losses 0.5 volts due to error..still got 4.5 volts ..which the processor still can recognize the bits..but if 1 volt losses 0.5 volt..then the processor dont know wether its I or O.

of course there is always correction can be made.need more $$$ for technology lo.thats y ultravoltage chips are always expensive.

so,if normal 5volt chips are being programmed to be lower voltage..then the chips might have difficulties in recognizing the bits.and might cause alot error.coz they are not designed to be like that.

modifying something that are not made to be cannot perform 100% perfect and might damage it too.

i think undervolting the CPu is not a good way to save power or reduce heat la,it will just come back to the same ,,,plus more damages.how much power can we save throught the undervoltaging 10-20%?just not worth the risk to take .

back to the heating prolem, i found out that my laptop cooler has 2 studs to lift the laptop higher abit from the back.this makes the laptop abit slanted to the front and the space below the laptop abit bigger.

i think all laptop cooler has this, but one of the stud is on my battery. The battery is attached to the laptop through a thin plastic slot and then being locked.if i continue to let the weight of the laptop to sit on the battery slot..will the plastic break?currently i took out the studs and my laptop lie flat on the cooler pad.

i think alot user will face the same situation like me.any comments?

hurricane21, you're using matshita DVD-RW too? had been using it for how long?can last ar the ROM.coz i'm using it too,almost 3 months for now...burning alot dvd.

icic. thanks for the info.