Jetway MA3-79GDG combo motherboard
Phenom II x3 720
Galaxy GTX260 896mb (comes as standard with three fans)
Tagan 500w PSU
4x8cm fans - front 2x intake, rear 2x exhaust (old fans, maybe 5yrs)
Old Mid Tower
NB case temp 47c
temp 3 35c (i assume this is CPU)
MyGuard (temp software that came with motherboard)
Sys temp 75-80c
I have had two crashes, one while playing crysis, the other while checking stuff online.
The above temps are not after gaming, but after a restart on a low CPU load.
It is pretty hot where I live, but these crashes/temps are late night, not middle of the day
The motherboard has no fans - all heat sinks.
Bad motherboard design?
The CPU does not seem to be too hot, but the motherboard temp is concerning me.
I don't really have space to put more fans in my current case.
Should I have built a new system with a new case (ie top mounted fan etc)
Replace my tired old fans with new ones? (they are moving, I checked)
I dont want to spend money, but if I have to get a new case, then I will, but I want
to make sure that whatever I spend my cash on will solve the problem.
Use HW Monitor to check your temps, also i would suggest putting your hand behind one of the exhaust fans, if you cant feel air coming out then you should get new ones, if you do feel air coming out and you dont get second degree burns in under a minute then i would bet on your motherboard temperature sensor being off, if you do then your motherboard temp is accurate so go run your hand under cold water and start looking for a new motherboard.
lets try again. the fans are pumping out air, but I have no idea if they are pumping it strongly enough - it isnt exactly a tornado. And no the air isnt burning me, the case isnt overly hot - nothing feels hot.
But two apps say 80c and it is reseting.
I just read a review of the antec 300 and some guy reckons his sys temp dropped 20-30 degrees when he replaced his 8yr old case with this budget gaming case, does that sound realistic?
I just left the PC off for about 45mins, turned it on and as soon as it booted it said motherboard temp 72c
Is it possible for a motherboard to hit 72c within 30 seconds of being on, after being turned off for 45mins?
I assume my hand would be warm inside the case at 72c, but I could feel nothing.
Fans are all working.
If the temp sensor was faulty and it wasnt running at 70c+, would it still cause the PC to restart, because it thought it was running at 70c+?
ie. does a PC restart because of the reported temp, even when the temp sensor is faulty and the actual temp is fine?
If the temp is correct and I need cooling, I am in two minds either get a new case designed to take more/bigger fans or try to fit more fans on my existing case - 8cm is as big as I can fit, but are some 8cm fans better than others? I dont need quiet, I just need powerful.
Off the cuff my guess is that your old case/fans just aren't giving you enough airflow and you're getting dead air pockets around your motherboard. Options would be new case fans, add fans if you can or a new case. The Antec300 is a good choice, but it comes with only 2 stock fans, more can be added for better airflow. Look at the Antec300 Illusion that has 2 fans added for a small amount of $$. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
That says it's your NorthBridge with the high temps. (TMPIN1) You could check to see if it's fitted properly. Or add a fan of some type to it (case type fan with clips) or that Antec spot fan ^. Lots of other options, check "Northbridge cooling"
Open up HW monitor and watch that voltage for a bit, try finding something to stress your GPU with to affect the 12volt rail and see if it fluctuates a bunch, it may have been a glitch with HW monitor but maybe not. Tagan isnt a very common PSU brand nor is it a very high quality PSU brand. Try using something like folding@home's GPU client to stress out your GPU so it draws alot from the 12Volt rail, if it drops below about 11.5Volts see if they will let you return it.
From what i can find they dont seem to have PFCs in all their power supplies, which is very bad.