P-6831FX and SU9400

So earlier today I installed an SU9400 in my P-6831FX. It is a little slower than the T5450 that came with it. It dropped the windows experience score by 0.1 (to 4.6) and I can totally live with that small sacrifice. It was hotter than the sun and now it blows out COLD air when idling and gets just a little warm when the processor is maxed out.

I think that's pretty important considering that I'm going to a place where it's 100 degrees in the shade almost year round. Not to mention the increase in battery life.

And on another note my memory score went up by 0.3 (to 4.9). Weird.

If anyone is interested I'll post pics of the install and SS of Z-CPU. Oh, processor reports a temperature of -22°C.

Bed Time.

 

The main source of heat in a gaming machine is the graphics card, not the processor. So what you're saying is hyperbole at best.

 

Your mileage may vary but I don't generally play games that will max out this GPU. Between my processor and my GPU, historically my processor has been between five and ten degrees hotter. Take it or leave it.

I decided to join this site to show an unusual processor upgrade, not to get flak from someone who should be adding something to the conversation.



Yes, I understand that the reported temperature from the processor isn't correct. Do I know what it is? Nope. Do I care? Not really. The air coming out, although slightly above ambient, is much cooler than it used to be.

 

Why did you horribly downgrade your system instead of upgrading and getting the same cooling effect. The t9300 runs ice cold (usually in the mid 20's) and would have actually upgraded your system instead of harming your performance.

Was there a particular reason for you doing this?

 

I'm not here to give you crap. Believe it or not, I am adding to the conversation. I'm telling the people who read this thread that changing the processor on a high-end gaming machine to a low voltage unit will not greatly affect operating temperatures since the main source of heat is from the graphics card.

Yes, your processor now runs cooler. That makes sense. But for those looking for a drastic improvement in operating temperatures for the system (those with overheating unit or those looking to overclock), this is not necessarily a viable solution.

 

Sound's pretty viable to me. You can't just say that it won't affect temps. Of course, that doesn't necessarily mean it's a good idea. If the 6831's cooling system is anything like the 78xx's, it should handle a 35w TDP easily. What were your temps before darius?

 

It didn't horribly downgrade the system. As a matter of fact I haven't noticed any difference. When you figure the increased cache and faster FSB then the 266MHz in speed is pretty insignificant. And a T9300 puts out 35W of heat. It's the same amount of heat as the stock T5450.

As for why? I'm bringing my computer to a very hot place and it gets way too hot as it is. I'm not comfortable with a processor that peaks near 70°C in a room with an ambient temp of 20°C. Now here shortly I'll be living in a country where in the summer the average maximum temperature is almost 45°C. So, I swapped the processor.

Lithus, I'm not recommending this for anyone. But if someone is interested in lowering the heat then this is a viable option. I wish I could of found a SL9380 but it was hard enough to find an engineering sample of the SU9400 in a Socket P package. As far as heat goes, the processor and the GPU both put out 35W TDP. So depending on usage they have the ability to put out the same amount of heat.

 

Personally I think you could have just done some undervolting with a t9300 cpu, but that can be a pain to always deal with the undervolt software. You simply choice a hardware solution that undervolts and downclocks the cpu, nothing wrong with that. Its probably a better solution for what you need and the 6831fx was basically the laptop that proved cheap cpu's and high end gpu's work just fine. Kudo's on the mod, should work out nice.

 

Thanks! Software and I don't get along very well. Last time I tried to fool around I bricked one of my routers.

 

dude, you still run a 800mhz FSB.

 

You have an ES. They don't have temp sensors so you actually have no clue what your temperature is. That means your system has no clue what the your CPU temp is and can't vary the fan speed. Thanks for playing, have a nice day.

 

From the cost standpoint, I think you would have been beter served to use a cooler and set your power to Power Saver plan. My drives still run at average 45C on my system which is hotter than my GPU on this plan.

..or just trade in for a cool running Eee PC and be done with it.

 

I agree with you darius because i live in jamaica and my 7811 blazes some 82C processor and 90C gpu under load and at that time the palmrest is on FIRE! I am now considering finding a cooler running processor. But how much cooler can i get than my p8400.

I wont be goin down to 1.4 tho.. lol

 

The difference in speed is so small that I don't even notice it. It has an extra MB of L2 cache and the FSB is faster. So I guess it all evens out in the end.

 

I'm glad you're happy with the change, i wish you could get a real reading from the CPU temp though, it would be nice to know what the actual temps you're getting are.

You do know that the 68xx series is hard locked to 667 FSB though right? I have an 800mHz FSB CPU and 800mHz RAM in my 6860, but they dont actually give that as the motherboard is locked in 667mHz

 

I wish I knew what the temps were too.

CPU-Z says my FSB is running at 798MHz.