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Temperature vs Power supply.

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Alright, so I've got a computer in a microATX case. The power supply that was in there was a 250 watt, so I upgraded it first thing to this.

http://www.newegg.com/Product/Prod [...] 6817709010

I liked it fine till I decided I wanted a better quality one. (and power supplies were the one thing I knew largely nothing about) And got this. (It was on sale last week, $10 off)

http://www.newegg.com/Product/Prod [...] 6817182160

Now the only issue I have with this new one is that it doesn't seem to be blowing any air out the back. I assume it only kicks up when the power supply itself is under a large load. After using the PSU calculator apparently I only needed a 300 watt power supply, so it's unlikely to do so. Is there any way to force it to?

The last power supply always blew and I could feel significant airflow from both it and the scythe 92 fan that I addded. Those are literally the only places fans go in this case.

After running Prime95 and a graphics stress thing for aboutt 40 minutes now, SpeedFan says that the CPU fan gets up to 3700 and the scythe just sits at its normal (and max) 2000 RPM.

Temp1: 47c
Temp2:57C
Temp3: 49C
HD0: 30C (it's a 320 gig WD AAKS single platter)
Core: 53C

With the other power supply in it I had done the same test but at the time only to see if it would fail. IIRC the CPU fan only got up to 3000, and Temp2 at least was not that high.

Advice? I'm not intending on getting a new case though...

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That PSU has a silent fan with speed control. If its not getting hot it wont blow much air. If you run the computer with the side off the case can you see the fan spinning?

Message edited by dndhatcher on 11-04-2009 at 02:35:08 AM

Reply to dndhatcher

Yeah, it is spinning. It is very much quiet. But that has never been my priority.

Reply to False_Dmitry_II

by any case do you have a x3 720??? as that is what i have

Reply to wsupduck

Not in that computer. It's a 4600+

My main desktop does. What does that have to do with anything?

Reply to False_Dmitry_II

Oh nothing lol, just curious

wait i thought the 4600+ was a dual core?

Reply to wsupduck

It is a dual core...

But yeah, with all the quiet computing stuff that's been happening recently, I find it somewhat annoying. I'd rather err on the side of a bit noisy to keep stuff cool and lasting longer.

Message quoted 1 times

Reply to False_Dmitry_II

Nobody has any ideas? Or are those temps simply good enough? (mainly temp2)

I'd hate to have to switch back to the other power supply just because it made the system run cooler.

Reply to False_Dmitry_II

The power supply fan has basically nothing to do with cooling the PC, its only for cooling the power supply. All of those temps are motherboard temps and totally irrelevant to the PSU fan. If the system ran cooler because of the other PSU fan, you need better/more case fans, not a different PSU.

Below 60 when loaded by PRIME is fine. Normally its 65-75 when overclockers start worrying about CPU damage for Athlon CPUs.

It does seem you have a hotspot in the case where air isnt flowing. You might want to clean everything up, move cables out of the way, add another fan (if possible) to improve airflow.

Message edited by dndhatcher on 11-06-2009 at 01:31:57 AM

Reply to dndhatcher

That chip definitely appears too hot for my taste. A couple of things you can do. You could grab a pci slot cooler fan for a couple of bucks to help exhaust. Also I find on on my machines, if I have a powerful fan that sits under the power supply to keep a cool stream of air blowing under the power supply that things seem more stable in general. If you've got enough space maybe a 5.25 bay fan.

Here's one that supposed to help cool hard drives.

http://www.newegg.com/Product/Prod [...] 6817993002

But gives you an idea, or you might rig a fan in there cheaper if you feel like messing with it.

edit* Didn't read earlier that those temps were after prime testing.

Message quoted 1 times
Message edited by ohiou_grad_06 on 11-06-2009 at 02:36:52 AM

Reply to ohiou_grad_06

ohiou_grad_06 wrote :

edit* Didn't read earlier that those temps were after prime testing.

Yeah, I would hope it doesnt get that hot during day to day use.

Reply to dndhatcher

However I do remember back in the day with the old Athlon XP's, my 2800+ Barton core ran that hot all the time.

Reply to ohiou_grad_06

False_Dmitry_II wrote :

Well if it's a dual core then why is speed fan showing 3 temps? Aren't those temps for he cores of the CPU

Reply to wsupduck

I think temp1 is the CPU, temp2 is a chipset thing, and core is the graphics card.

And yeah, the powersupply fan is supposed to be for cooling the PSU only, but it's not like it can't help do the rest. The other one obviously did, after all. They switched it to blowing air out instead of blowing air in like the atx spec originally called for.

But yeah that test was on purpose as hot as I could make it. It normally is around 40 C for all the 'temp' and the CPU fan is at about 1900-2000 RPM's. But that's on more or less idle.

If there was a spot for any more regular case fans I'd just add another scythe.

Reply to False_Dmitry_II

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