Another dead MCP355 DDC3.2 almost took my 980x with it.

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02-28-2011, 08:27 PM
stangracin3

Quote:

Originally Posted by matari

Is top to blame? official no, but un-officially NO. If the O-ring is not installed correctly, the water will slowly leak in. And remember that reservoir is made by hand, there may be some imperfections that caused the problem.

Fixed, you said it yourself in your own post
the user improperly installs the O-ring

my DDC w/ xpsc restop is still going strong after ~2years

according to you that makes me smarter than most people with a ddc. thanks
02-28-2011, 08:38 PM
bmaverick

Quote:

Originally Posted by Cookiesowns

Interesting, I mean, its just the fact that these pumps fail nearly the same way, I think there's a flaw somewhere. I'm not going to blame Laing, there a Taiwanese company correct? Maybe I can talk some sense into them, haha.

Laing isn't in Asia. They are located in Hungry in Europe. The pumps work just fine in their stock configurations. Heat is a general killer of most electronics. The DDC series needs to have the base cool enough in a stock setting.

Now, adding a performance top to increase the flow will increase the noise, the heat and load effort for the little pump. The life span becomes unstable to predict.
02-28-2011, 08:40 PM
Cookiesowns

Quote:

Originally Posted by bmaverick

Laing isn't in Asia. They are located in Hungry in Europe. The pumps work just fine in their stock configurations. Heat is a general killer of most electronics. The DDC series needs to have the base cool enough in a stock setting.

Now, adding a performance top to increase the flow will increase the noise, the heat and load effort for the little pump. The life span becomes unstable to predict.

Yeah, I guess thats the problem.. Well, its kay then I guess..

Anyone have some figures of the MCP35x?
03-01-2011, 03:23 AM
Erklat

Quote:

Originally Posted by Cookiesowns

Anyone have some figures of the MCP35x?

Figures of flow or figures of death rate?

MCP350 indeed seems less affected by this, my still going strong after 2yrs.
I think I'll stick with them, imho they pack enough flow when doubled in a single loop, and between somewhat lower performance(?) and reliability I'll always opt for second. :up:
03-01-2011, 05:57 AM
Tackleberry

Quote:

Originally Posted by bmaverick

Laing isn't in Asia. They are located in Hungry in Europe. The pumps work just fine in their stock configurations. Heat is a general killer of most electronics. The DDC series needs to have the base cool enough in a stock setting.

Now, adding a performance top to increase the flow will increase the noise, the heat and load effort for the little pump. The life span becomes unstable to predict.

It is HungAry:rolleyes:
And they are from Germany.

about life span----any tests?
03-01-2011, 11:19 PM
Cookiesowns

Quote:

Originally Posted by Erklat

Figures of flow or figures of death rate?

MCP350 indeed seems less affected by this, my still going strong after 2yrs.
I think I'll stick with them, imho they pack enough flow when doubled in a single loop, and between somewhat lower performance(?) and reliability I'll always opt for second. :up:

Death rate
03-02-2011, 11:14 AM
zytrahus

I blame your xspc top. not the first time nor the last.
http://www.xtremesystems.org/forums/...d.php?t=258626
03-02-2011, 07:57 PM
stangracin3

Quote:

Originally Posted by zytrahus

I blame your xspc top. not the first time nor the last.
http://www.xtremesystems.org/forums/...d.php?t=258626

i blame the inability to check the o-ring seal

edit:

also read this post from the thread you linked

Quote:

Originally Posted by churchy

Are you shure that pumps aren't overtightened when mounting to top? I vaguely recall reading that by that you can introduce friction because of pump's impeller touching a bit top due to small clearance in some top cases. My memory might be wrong though. Also .. check how hot their PCBs get when used on that bay reservoir. In some builds that place is in airflow deadspot .. add to that 3.25 being the most powerful (and probably hottest) DDCs, and you might see some overheating/burning out PCBs issues.
03-02-2011, 10:54 PM
azcrazy

Quote:

Originally Posted by Cookiesowns

I'm not sure theres a shutdown temp on the R3E is there?

:( I'm not sure what to do, shall I contact GABE @ Swiftech? I don't have the box for the pump anymore..

Laing Should really re-design these pumps, this is not only a huge health risk, but also pose a serious issue, If the pump burns, it could potentially cause a fire, or just take down whatever is with it. With that being said, Luckily no harm was done, except a dead 60$ pump.

My Living room now smells like serious :banana::banana::banana::banana:... Hopefully, No lung cancer is involved ROFL

yea there is in the power section under hardwear temps, u havre to lower it is in 10's , 100-90-80
03-03-2011, 11:47 AM
NaeKuh

Im suprised no one told the op the cpu has whats called a thermal shutdown protocal, which was implimented on all intel cpus since p4 netburst days.

What that means, in the event of a cooling fail, the cpu will dow throttle itself until the processor hits a temp of 110c. At that point it will shut down the system.

Then when u try to start the system up again witha failed cooling, you will get a halt in bios, which says cpu has overheated.
03-03-2011, 01:33 PM
zeroibis

Quote:

Originally Posted by kroks

EK top here...

The top that was used does not matter as there are people who are going to say it was caused by XSPC regardless of what actually occurred. There seems to be a trend that creates the following condition:

public pump_fail(any:pump_used)
{
if(MCP355_pump==pump_used)
{

if(custom_top)
{
return("Caused by XSPC top");
}
else
{
return("Caused by XSPC top");
}
}
else
{
return("Caused by pump failure");
}
}

Now ignore the above code and note the important result. There appears to be a trend in the output of pump_fail(). Apparently pump failures are the result of 1 of 2 things, an XSPC top or a pump failure. Now there is another interesting trend where we find that that the only time that a pump can fail from its own failure is if a MCP335 is not involved. If a MCP335 is involved then the failure is caused by a XSPC top regardless of what top is used. This is why your statement about it being an EK top has no relevance to the cause of this problem. The only relevant information here is that the pump was a MCP335, this is the only thing that appears to matter when it comes to pump failures. :shakes:
03-03-2011, 02:30 PM
JoeBar

Quote:

Originally Posted by NaeKuh

Im suprised no one told the op the cpu has whats called a thermal shutdown protocal, which was implimented on all intel cpus since p4 netburst days.

What that means, in the event of a cooling fail, the cpu will dow throttle itself until the processor hits a temp of 110c. At that point it will shut down the system.

Then when u try to start the system up again witha failed cooling, you will get a halt in bios, which says cpu has overheated.

Very detailed description...

I sense a user experience... :lol:
03-03-2011, 02:59 PM
NaeKuh

Quote:

Originally Posted by JoeBar

I sense a user experience... :lol:

i plead the 5th.

But trust me, ive done just about everything stupid you can do with water and then some, to see how far i can get away with it.
03-05-2011, 10:41 PM
Cookiesowns

Quote:

Originally Posted by NaeKuh

Im suprised no one told the op the cpu has whats called a thermal shutdown protocal, which was implimented on all intel cpus since p4 netburst days.

What that means, in the event of a cooling fail, the cpu will dow throttle itself until the processor hits a temp of 110c. At that point it will shut down the system.

Then when u try to start the system up again witha failed cooling, you will get a halt in bios, which says cpu has overheated.

Many have, and I know about it, I'm just not a fan of running above 90c at 4.4ghz with 1.4125v :O I used to only get 65c max after 30 minutes of linux with 78F of ambient

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