orl
Regular Member
Posts: 96
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Post by orl on Jun 7, 2019 16:43:07 GMT -5
Old faithful may be going out. Its a shame as she was a quiet one for a DDC.
It keeps stopping abruptly then restarting. Its pretty physical too and sends a vibration through the desk.
Should I count her lost and replace or should I hope a drain and clean fixes her up? I have never had a DDC go out like this, so unsure what to do here. Usually they only go out when people fry the board in them, but its possible the ceramic bearing is aging poorly.
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Post by georgekokovinis on Jun 7, 2019 16:55:38 GMT -5
Never risk with pumps, lol. It may cost you a processor, if it stops permanently.
If you can afford it, go for a PWM D5 with speed adjustment. Good stuff.
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orl
Regular Member
Posts: 96
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Post by orl on Jun 7, 2019 17:07:14 GMT -5
Never risk with pumps, lol. It may cost you a processor, if it stops permanently. If you can afford it, go for a PWM D5 with speed adjustment. Good stuff. Man, I have a full aquacomputer DDC system with res, pump frames, heat sinks, etc. It would be hundreds of dollars to replace all this stuff and not even sure the new crap is as good. It will definitely be a DDC just not sure which one if I do. |
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Post by Mr.Scott on Jun 7, 2019 17:52:14 GMT -5
MCP50X is best bang for the buck.
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Post by georgekokovinis on Jun 7, 2019 18:03:08 GMT -5
Personal experience -
4 X swiftech pumps died on me - Swiftech's answer was " our pumps need a fan blowing from the underside to keep the pump cool ".
Imported from US. Never want to hear the name swiftech again.
XSPC yes, EKWB yes.
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orl
Regular Member
Posts: 96
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Liang DDC
Jun 7, 2019 20:03:25 GMT -5
via mobile
Post by orl on Jun 7, 2019 20:03:25 GMT -5
Well, the only DDC format the shop in town had was a MCP35X. So that's what's about to go in. I have it all out now and ready to drain. Gonna inspect pump while at it I guess and see what's going on. But new ones going in tonight.
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orl
Regular Member
Posts: 96
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Post by orl on Jun 7, 2019 22:05:19 GMT -5
Ok, so system came apart well, bit of a pain as I built it as an easy drain, clean, refill system. Not an easy take apart the whole pump assembly and replace individual components system. Culprit has been found.
Unfortunately after running this pump after 12 years or so with ZERO issues, I decided hey why not try to use one of the heat sinks with it and spruce up my rig a bit. Of course, this was the fatal mistake. The old school Liang pump from years past just isn't the same as these new ones out today kids play with. Just inside the edge of the PCB is a power pathway I did not protect against as it was not actually visible and did not know this one was there. It had made contact to the new metal heat sink just past my insulation installed to it and damaged the PCB at some point in the recent past. Who knows, my rock solid DDC might have even lived another ten years if I never attempted to put some english on the rig appearance.
Its been replaced with the new 35X PWM pump by Swiftech. The good news is I got luck of the draw once more, shes a quite one again. That makes for 2 of the 3 Liang pumps I have ever bought. Only one has been noisy and it died years upon years ago leading to my last good one. May time be as friendly to this pump as the last.
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orl
Regular Member
Posts: 96
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Post by orl on Jun 8, 2019 13:33:56 GMT -5
Update: I am actually enjoying the PWM pump quite a bit. Its nice being able to take it down to minimal speeds, this was designed to be a quite computer after all. It does feel stronger too at the higher end as well. While its unfortunate the whole thing even happened, some silver lining has come of it. I have it paired with a bunch of overpriced PWM HS Be Quiet fans and its quite nice. It also really seems to like my Aquacomputer Top/Res.
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Post by Macsbeach98 on Jun 8, 2019 16:46:35 GMT -5
I am with George I am on my third DDC my D5's are going strong since the day I got them and probably will be when I am dead and buried.
The DDC I got now will be the last thats for sure it will be replaced with a D5.
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Post by Vinster on Jun 8, 2019 19:21:36 GMT -5
Ive been happy with my MCP655, got the 1st one used and it lasted just over 2 years, acted funny and then I put it in the benching setup and she's been fine there. got another one and I think I'm on year 2 or 3 on her, no issues and still running near 4500rpm.
if I were to have to get a new pump it would be a D5 next
Vin
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Post by Mr.Scott on Jun 8, 2019 19:29:34 GMT -5
I am with George I am on my third DDC my D5's are going strong since the day I got them and probably will be when I am dead and buried. The DDC I got now will be the last thats for sure it will be replaced with a D5. I am the other way around. I have 6 total DDC's, the oldest is 10 years or so. All still run fine. I have had 2 D5's in my possession, both dead now. Neither lasted more than a year. Both brands of pumps were subjected to the exact same conditions in all my applications. I do prefer the smaller footprint of the DDC too. |
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Post by Bones on Jun 8, 2019 22:14:43 GMT -5
Have a pair of MCP655's I've had for about a decade now, both still work and the one I normally use is in fact outdoors on the tower, been there since August 2017.
Was used with the older setup before, the other hasn't been used as much but still has it's fairshare of runtime on it.
Would buy another without hesitation.
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Post by ShrimpBrime on Jun 8, 2019 22:59:01 GMT -5
Have a pair of MCP655's Would buy another without hesitation. Got one sitting right here. How much do you offer?? |
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Post by Bones on Jun 9, 2019 2:25:33 GMT -5
Don't need one ATM, these are still going strong.  |
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Post by dr4g00n on Jun 9, 2019 9:40:28 GMT -5
Never owned a DDC myself, always just go for the D5 since it's internally cooled and my two are both very quiet at full speed. Oldest one has been running at full speed in my daily for 3-4 years now.
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Post by ShrimpBrime on Jun 9, 2019 10:18:12 GMT -5
Don't need one ATM, these are still going strong. NP I understand. |
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orl
Regular Member
Posts: 96
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Post by orl on Jun 10, 2019 20:31:46 GMT -5
Never owned a DDC myself, always just go for the D5 since it's internally cooled and my two are both very quiet at full speed. Oldest one has been running at full speed in my daily for 3-4 years now. Honestly, the cooling thing with the DDC is almost borderline myth. The only time a DDC gets fried by itself is when people get stupid with them and glue them to foam or something to "dampen" it. Operator error is the cause of ELF for most DDC deaths. Both of my pump deaths have been due to my own mistakes honestly. First was to stupidity, second death was to ignorance, both traits that can kill anything 
As for the noise, when you get a good DDC its as quiet as the best D5 and easier to outfit in most cases, when you get a bad one people who are sensitive to high pitched noises can tell its running. About it really, I like both pumps though, simply stating I think the DDC gets hate cause it really was the standard bearer of the industry as it developed.
Funny Side Note... and you know I have been doing this to long... This was my first ever DDC pump that was actually meant for a PC and of which had PC connectors on it. The other DDCs owned had to be modified to run in a PC. The first one required soldering on some components, the second one I don't even know what it was for and from when I got it. It had some weird stuff going on with the pinout and connectors and had 7 leads on it, I cut some off and capped once it was figured out.
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