cpu is too hot!!

[coldhearted]

hi, i built my computer last summer, everything worked fine until yesterday when I randomly open speedfan and notice my temperature was idle at over 60degrees. This is about 15-20 degree higher when i first built my computer, but i havent notice anything wrong with my computer, like random restart etc...Btw my computer spec.
intel 805d@2.8ghz
stock cooler
asus p5ld2
windowxp home
mushkin ddr2-667 1g(2x516memory)

btw, another question if i want to add OCZ Titanium XTC Edition - 2 GB ( 2 x 1 GB ) - DIMM 240-pin - DDR II into my computer, does it work with my old memory?

[apvm]

open up the box and check if fan is still working, use a vacuum to clean up all the dust.

[coldhearted]

the fan is working fine, as I said earlier this computer dont have any random restart or bluescreen etc. And I just touch my heatsink, its not that hot too. But then my bios, asus pc probe II and speedfan all have similar reading on the temperature.

[KorruptioN]

Heatsink isn't mounted properly.

[Codegen]

You have an exhaust/intake on the case as well, right?

On mine, that can cause a significant difference. (I fried my old video card that way)

[Cafe_333]

It could be reporting the temperature wrong. Try using Everest and see what that says. I don't know about speedfan, but I know Everest reads the core sensor to get the temperature of the cpu rather than the motherboard sensor. Anyway, try reseating your heatsink. To answer your question about the ram, yes it "should" work with your existing sticks of ram, but it will downclock itself to the same speeds as your old sticks. When I said "should" it's because Asus boards around that generation were kind of picky about ram compatibility. Check the QVL from the product page on the Asus website to be safe.

[coldhearted]

hmm... did so cleaning on the fans, still having same temperature. I'll probably get a new heatsink, is arctic cooling freezer 7 pro any good? its around 35CDN around my place.

[woof]

Did you use compressed air to blow out the dust caught in the heat sink fins?

Are you overclocking?

[KorruptioN]

Heatsink isn't mounted properly.

Quoted for emphasis.

[coldhearted]

Dont have compressed air right now, will try to reseat the heatsink later on. Kinda scare to do that, last time I did my other computer, i couldn't take out the heatsink from the cpu(probably stuck), and it broke many pins, and i have to brought a new cpu.

[MrDisco]

hmm... did so cleaning on the fans, still having same temperature. I'll probably get a new heatsink, is arctic cooling freezer 7 pro any good? its around 35CDN around my place.

for the price its pretty good. should be a little better than stock. it goes on sale at ncix from time to time.

also could be your TIM. clean it off properly and reapply AS5.

your board may not like a mix of 2x1gb+2x512. if it does accept it, it may run a little slower vs an all ocz (or all mushkin) setup. then again whether you would notice is unlikely.

[KorruptioN]

for the price its pretty good. should be a little better than stock. it goes on sale at ncix from time to time.

also could be your TIM. clean it off properly and reapply AS5.

The Freezer 7 Pro is much better than stock. Quieter too.

AS5 will only give him a few degrees better performance.

[Kasakato]

Dont have compressed air right now, will try to reseat the heatsink later on. Kinda scare to do that, last time I did my other computer, i couldn't take out the heatsink from the cpu(probably stuck), and it broke many pins, and i have to brought a new cpu.

If the air doesnt fix it, take off the HS and clean it with some rubbing alcohol. Then apply some thermal past (AS5), and remount.

[Aske001]

It's amazing the faith people put in temperature sensors! Looking at this problem as an engineer:

1. He hasn't changed anything about his hardware
2. Heat sinks are held in place very firmly. They don't unseat themselves easily.
3. The CPU fan still runs fine
4. The CPU isn't showing any over-temp symptoms

ergo, the sensor is likely malfunctioning, or perhaps he has loaded new software/firmware that reads the temperature sensor differently (happens all the time).

Don't jump to waste your money on a new cooling solution without some further evidence.

You can always pull off the heatsink, apply new thermal paste, and re-seat it. That's a tricky operation that's unnecessary if it was done properly in the first place, and is more likely to cause problems if there was nothing wrong.

[KorruptioN]

2. Heat sinks are held in place very firmly. They don't unseat themselves easily.

The LGA775 heatsinks are known to unpop themselves when installed improperly, Mr. Engineer.

[Kasakato]

It's amazing the faith people put in temperature sensors! Looking at this problem as an engineer:

1. He hasn't changed anything about his hardware
2. Heat sinks are held in place very firmly. They don't unseat themselves easily.
3. The CPU fan still runs fine
4. The CPU isn't showing any over-temp symptoms

ergo, the sensor is likely malfunctioning, or perhaps he has loaded new software/firmware that reads the temperature sensor differently (happens all the time).

Don't jump to waste your money on a new cooling solution without some further evidence.

You can always pull off the heatsink, apply new thermal paste, and re-seat it. That's a tricky operation that's unnecessary if it was done properly in the first place, and is more likely to cause problems if there was nothing wrong.

A hotter CPU will heat up a room faster, and generally isn't great for the hardware. Over time dust will build up and will trap heat inside a device. The only way to clean the dust out of a heatsink is to remove it, clean it, and re seat it.
Re seating a CPU is not a hard task at all. It takes 5 minutes and can make a big difference.