The Official PC building thread -3rd Edition

Is your voltage set on auto? Your motherboard might have raised it.

 

Nope all votages manual. When I OCed, 1.25VID @ 3.2 GHz, and 2.1 for my RAM.
Now I clocked down, 1.18 VID @ 2.6, still 2.1 for RAM.
Same temps which annoys me....

 

Did you move around your computer? Heatsink might have had less contact.

Theoretically temps are supposed to go down over the course of time.

 

Abuzar: No moving, just turned down my case fans a little; I don't think enough to cause this much heat rise. One thing I have noticed is that for some reason my fans haven't been moving as much air, even when I turned them up. Before I put my hand next to the intake fan and it was really cold, but not so much now.
Sammorris: All I know is that my BIOS reports my V-core voltage at 1.18, and realtemp reports VID as 1.25. I thought they were the same??? Oops.

 

No, no. vcore and VID are different.

Check your VCORE in CPU-Z.

 

Lol if you turn down your fans, they a) won't move as much air and b) your temps will be higher.

 

Yes, thats the vcore.

Turn up your fans to their regular speed. Do you have good fans or crappy ones? They might be failing.

 

OK about my fans, I had them up, then I turned them down, then back up again. Both settings, no change really in temps, maybe 1C. But I have really noticed that they have gotten weaker in moving air, even at the speed they were when they were turned up. I can barely feel any air moving, even when I turn them up, and these are good fans. Coolermasters with the same exact specs as a Silverstone FM121.
I'll keep em turned up for a while to see if any difference.

 

If your processor is running hot with that low voltage then you might want to check to see if your heat sink is seated properly.

 

Must be since I had low temps for such a long time until just recently.
And I haven't really moved it around...
I'll check anyway to see if adjustment is needed.

 

Also check the heat sink radiator to see if it is choked with dust.

 

Heatsink is seated exactly the way it always has. There is full contact.
Turned up fans, temps went down 1C.
Sophocles: There's no dust anywhere on the heatsink that I can see. I blew some compressed air all over it just in case. I've kept the dust filters on all of my intake fans on, anyway, which I probably should take off since they supposedly lower temps a considerable amount.

Thanks for the help guys. I'll keep trying to adjust it and hopefully my temps'll go back to normal. My bet is that my case fans are failing...the airflow has never been that low before....

 

mrk44,
Fans don't get weaker over time. They either turn at a set rpm/cfm or they don't. With multiple fans like your case has, it all depends on what direction the fans are blowing. If they feel weaker, start from the front intake and work backwards. If I set mine on a carpet, it blocks the front intake of air to the case because the air feeds from the bottom. How are your fan directions laid out?

Like with mine, I have the rear case fan (Silverstone 120mm, same spec as yours) as an exhaust and running about 1400 rpm. I turn the side cover fan (Silverstone 80mm) up enough to just feel some airflow coming out (about 1400 rpm). If I turn the side fan up too high, my temps actually go up as it fights a bit with the rear fan. It sounds to me like something is cutting off air intake to the case. Without enough intake, the exhaust suffers, especially without any static air vents in the case cover.

Russ

 

theonejrs: I have one intake fan on the front running at 1100 RPM, which came w/ the case so it doesn't move much air. My side fan is intake, I don't know what RPM because I don't have it plugged into the MB.* It's placed just under my heatsink, protruding into the case. This fan is the one that feels weaker than before. My rear exhaust runs just fine, moves plenty of air. I also have an 80mm exhaust on the top of my case.

*I want to plug my fans into my MB, but I think sammorris said in an old post that plugging a 2000RPM+ fan in can damage the MB? Can that still happen if the fan gets its power directly from the PSU? If I plug it into both, where will it get its power?

 

I'm not a big fan of plugging case fans into any motherboard. The problem is many CPU coolers use PWM control like my Freezer 7 Pro. Unfortunately most case fans are not PWM, and need to be controlled by voltage, which conflicts with the PWM setup. I don't know if all motherboards are like mine where if you set the Fan Control Method to PWM for the CPU fan, the other fan headers also are under PWM control as well! The only header I ever use besides the CPU fan header is the Power fan header which is straight 12v with no control at all.

I've found through a lot of testing that when using a large CPU cooler, the side cover fan is more effective as an Exhaust than as an intake. The trick with my setup is to not make the side cover fan try to exhaust too much air, but rather help carry away some of the heat from the CPU cooler, without interfering with the rear fan's ability to remove the rest of the heat inside the case. If you turn the side fan up too high it does interfere with that process. As an intake, the airflow of the fan interferes with the airflow of the CPU cooler fan, raising the temperatures. My rear fan runs at 1400 rpm, and the side cover fan about the same. Basically, I just want the side fan as an exhaust, to have a gentle breeze that I can feel on the back of my hand. I would suggest that you try the side fan as an exhaust and cut it's speed down to allow the rear fan to do it's job better. My results below speak for themselves!

Here's a Pic of my temps.



From L to R:Rear Case fan, CPU fan, Hdd Temp, Hdd Temp, GPU temp, Core 1 Temp, Core 2 Temp, CPU Temp, MB Temp and CPU speed. Ambient Temp is 24C. I have a F7-Pro for my cooler and my E6750 is overclocked about 900MHz. I haven't had any Temperature problems since I switched to a quality CPU cooler. The front intake fan is factory Cooler Master, and the two case fans maintain about 100 cfm through the case. While no means silent, it is much quieter than using the stock Cooler Master fans. I have no problem sleeping with the computer turned on as the small amount of noise it does make is not the least annoying. I've consistently had temperatures like this since I started using a better CPU cooler.

Russ

 

With the low voltages we saw in your screenshot your fan and heat sink are the most likely cause. Case fans can have and effect too, but they're much easier to inspect to see if they're running fine. Your processor is running at stock speeds as are the voltages then all that's left is you CPU cooling.

 

Exactly. Just reseat the cooler heatsink, I know it's a PITA but it's prolly worth it at this point. I would make double sure the fan "filters" are clean as well. Limited air flow is gonna cause some "increase" in temps as well. BUT the temp increase you're describing is coming from some irregularity with the cpu cooler. You said you moved? Did you mean you moved your tower or moved from your residence to another? IF so you could have jostled you cooler heatsink.

good luck...

....gm

 

theonejrs: My side fan is under my cpu cooler, so it doesn't really look like it gets in the way of the airflow flowing out of the rear of the case. I have it blowing air onto the mobo and gfx card. I tried making it an exhaust once, and it didn't really do much; if anything my temps went up. What I want to know is how do you know the rpm of your fans if they're not plugged in to the mobo? I would really like to know what rpm my fans are moving at...but I don't know if I should plug them into my sys_fan and pwr_fan headers.

Sophocles and GM: I'll reseat the heatsink when I get the time to, around all my schoolwork and studying. Maybe next weekend. For now, I dusted off my fans and filters...
I didn't actually move anything or anywhere. That was a typo in my post, edited now. My comp has been stationary ever since I finished installing the cooler.

My temps look better now: 33C, 33C, 33C, 33C at 72-73F room temp. Much worse yesterday at same room temp. My core1 sensor is stuck. It never goes lower than 33C, even when the rest are at 28-29C when I power on. And it's always 3-4C lower than the rest when they are higher.

 

I don't know if U all remember or not, but back a few weeks I could not get WinXP to install on my new Computers. I ended up with Vista, well come to find out its these new key pads of mine (USB) 1Microsoft. 1BenQ. I can't get the F8 key to work, everything else responds fine. I used my old round connecter key pad and XP F8 worked installed fine. Any body here got any ideas on this, is this a Qurk with USB or did I get 2 bad key pads