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3 Questions in one post

P

Pragma

Member
Hi, I just assembled my new comp, and I'm planning to OC it (2.53 C1 P4). I had a few questions though, and I figured I would make less clutter with them all in one thread.

1) Can your case temp be consistantly higher than ur cpu temp? My bios (Albatron px845pev pro 1.08) reports my case temp as 35 and my core temp at 29. Note: I am using the stock intel HSF w/ artic silver 3. I am using passive cooling on the chipset northbridge with artic silver 3. My case has 6 fans, 3 intake, 3 outtake, but they are all 80mm and fairly weak. Also MBM 5.2 reports the same, as using thier website to determine what the winbond sensors on my mobo relate to.

2) What does spread spectrum do, and why should I disable it to OC?

3) Has anyone ever heard of the motherboard connector got your power LED being underpowered? My case has a blue LED for power, and a yellow for HDD activity. When I plug the yellow into either the pins for HDD or POWER, it goes on (or flashes according to hdd activity). But when I plug the blue LED into POWER, it never goes on, yet it flashes with hdd activity when in the HDD pins.

Thanks in advance.
 
3) Has anyone ever heard of the motherboard connector got your power LED being underpowered? My case has a blue LED for power, and a yellow for HDD activity. When I plug the yellow into either the pins for HDD or POWER, it goes on (or flashes according to hdd activity). But when I plug the blue LED into POWER, it never goes on, yet it flashes with hdd activity when in the HDD pins.
Click to expand...

if you're using aftermarket LEDs then yeah, i've seen that happen before. something about the voltage draw with various LEDs, some are just too much for the board to handle. make sure tho it's not just reversed, as this can cause the LED not to light up as well (just flip the blue connector).

~erik
 
Its not reversed, I figured that was it at first, and so flipped the poles, but to no avail. But thanks for the info, I guess since it is an aftermarket case (im using a Kingwin KT-436) the led needs some power. No problem really if thats all it is, ill just splice off a rail from my psu with a resistor.
 
i've never tried that so i dunno. usually i've only seen this problem with ppl who replace the LEDs themselves. usually when you buy a case it comes with usable LEDs. of course i don't see too many cases that come standard with blue LEDs either.
 
1) It's possible, though unlikely, that there is a stream of fresh air being blown on the processor from outside the case, while the case sensor is in a dead zone, or next to a hot compoent. I'd think that the two were reversed though. Look for Prime95 on Google, and run it; see what happens to the temps then - whichever temp is the CPU should increase more than the case.

2) Spread Spectrum, in the Bios Optimization Guide.

3) A few LED's do not seem to light up at all unless they get their rated voltage. I've only ever seen one type that is like this; any other LED's I have just light dimly. This one is a blue LED, and it seems to NEED its spec'd voltage.
 
I ran prime95, and the "case temp" (higher one ) went from 34 to 44 celcisu. The "cpu temp" (lower one) went from 29 to 41. ????
 
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