Overclock.net banner

Alphacool pump VPP755 review of noise issues and problems

129743 Views 762 Replies 117 Participants Last post by  thigobr
EDIT: I'll attempt to keep this 1st post factual and update it with info. The replies in the threads however tell a very sad story about the companies behind this product.

REPORTS ABOUT THE PROBLEM

Posting for awareness after my VPP755 in use for 7 days fell victim to the same type of noise as in the videos below. They are all from folks whose VPP755 pump got noisy after a while. It looked like a promising pump on paper, which was initially silent even at 3500 rpm in my case (with a Watercool Heatkiller D5 top).

Video reports:

  • (this is mine, note that it's sitting on a thick sponge, completely decoupled from the case; fan noise for comparison before switching on the pump; noise is the same regardless of the o-ring used).

Audio report from someone else:


More reports on Reddit:

  • https://www.reddit.com/r/5j8j8a/alphacool_vpp755_pump_has_developed_terrible/dbekq7p/ ).

    My RMA experience

    2017-02-26: RMA opened at Aqua Tuning.

    2017-03-06: RMA not going that great, see here. I was asked for video evidence (!).

    2017-03-10: More progress on my RMA here. I was allowed to send it back. They conditioned the refund on reproducing the fault.

    2017-03-18: Pump sent back to Germany. I pointed out that I opened this thread on OCN.

    2017-04-04: Full refund received, more here.
741 - 760 of 763 Posts

· Registered
Joined
·
997 Posts
You are making post #738 in a thread about an incredibly problem plagued pump. How can anything be a surprise at this point? It's like saying "I stuck my hand in a wood chipper, and I was surprised when I had no fingers after".
I think he is saying that if they are on V3 that they would have either fixed it or stopped selling it. Amazing that even now they still have not apologized to the W/C community and refunded everyone who bought one. Not to mention take ownership of all the companies they falsely accused of being the proble when its really their failure.
 

· Registered
Joined
·
67 Posts
I've noticed that DDC pumps can bind up if the pump tops are overtorqued as well. Is this a similar thing to what the V3's are doing?

Are all D5 PWMs the same and adjustable in the same 5% increments?
 

· Registered
Joined
·
997 Posts
I've noticed that DDC pumps can bind up if the pump tops are overtorqued as well. Is this a similar thing to what the V3's are doing?

Are all D5 PWMs the same and adjustable in the same 5% increments?
The VPP755 is not a D5, its just shaped like one. It was suppose to be the answer to a quieter, higher head pressure with same or better flow rate replacement to a D5. But they are giant turds and every person I have ever heard of using one including J2C has had it take a giant **** in less than 6mo.

They blamed the users, the pump tops, the coolant used..... But to my knowledge never have they owned up to making a turd. Don't waste your time or $ on one. Apparently even V3 still has issues.

You want a D5 get a D5 Next. Its worth every penny not to mention you get access to Aquasuite.
 

· Registered
Joined
·
150 Posts
Yes, exactly as ChiTownButcher said. It's amazing that they are still selling/making the pump with issues! By the serial number my pump was made some time in 2020, so it's not old stock!

So I left the computer seating off this weekend. Today as I turned it on the vibration and noise went away! I don't know if by having liquid inside something adjusted but now it's silent on level 3 and almost silent (usable with regular house background noise) even at level 5!

Either way I also torqued down the screws as I suspected it might have been the impeller touching the reservoir housing but it wasn't (I torqued down after turning on the computer and with the weird noise already gone).

I read the thread before buying but I decided to try for myself considering the noise and power consumption advantages over a real D5 (the price, ~70% of a D5 PWM, also helps). As I have a 30 day return window I will monitor the pump during this time and decide later if I will keep it or not.
 

· Registered
Joined
·
598 Posts
Been using mine since November 2019 now almost 24/7. Not a single issue.. quiet as the day I turned it on first time.. been running it at 2500-2700 rpm for most time. Last two months 3200-3500 rpm since I added the GPU to the loop.

Been using it with alphacool housings. I read they don't fit in other brands since they are too short. Maybe this is what people have been doing also... Sticking them in wrong pump housings..

V1 and V2 were flawed. V3 seems fine though.
 

· Registered
Joined
·
598 Posts
Hello, if someone put Bitspower Mod Kit on a pump? I am thinking about buying this pump and I do not know if the "clothes" will fit together with the top :D
I'd not pair these pumps with anything else than the pairing alphacool housings. All the issues I've read are people sticking them into 3rd party housings. It's physically too short.
 

· Registered
Joined
·
598 Posts
Just as a follow up. I own 2 of these V.3 puppies now. And one has been running straight for over a year now or so. 3000+ RPM in several alphacool housings. The other one now online for 4 months daily also. Also in an Alphacool Eisstation housing. Zero issues. I really feel like most of these issues were compatibility related with V.3 that is. It is known that V.1 and V.2 had some serious issues.
 

· Registered
Joined
·
997 Posts
Just as a follow up. I own 2 of these V.3 puppies now. And one has been running straight for over a year now or so. 3000+ RPM in several alphacool housings. The other one now online for 4 months daily also. Also in an Alphacool Eisstation housing. Zero issues. I really feel like most of these issues were compatibility related with V.3 that is. It is known that V.1 and V.2 had some serious issues.
And yet they treated their customers like crap, refused warranty and blamed Coolant Companies, Distilled Water and even their customers instead of owning the issue and making it right. Because of that I won't own one unless it's the last PC pump on the market.
 

· Registered
Joined
·
598 Posts
And yet they treated their customers like crap, refused warranty and blamed Coolant Companies, Distilled Water and even their customers instead of owning the issue and making it right. Because of that I won't own one unless it's the last PC pump on the market.
I'm not disputing any of these things. I'm just putting in a review as the topic titles stats with my findings and what I noticed about the complaints that were posted that they were all using a 3rd party housing.

My 2 pumps have been doing a great job quietly and problem-free so far. That's all I am sharing. If you have personal grudges against a company that's your business. And rightfully so.
 

· Registered
Joined
·
150 Posts
Update from my side: the pump is still working well after 4 months of daily usage... The initial noise didn't come back. It might have been air in the system, I am really not sure.

I will update the loop to include another 280mm radiator and the GPU soon but I expect it to keep working well.
 

· Registered
Joined
·
448 Posts
Well.. been a while since I've posted but my Alphacool VPP755 has also started making this noise now.

Purchased + installed in November 2020. I got it with the matching Alphacool Eisfach dual bay reservoir to replace an old XSPC reservoir I had. It came already installed in the reservoir and I've never messed with the pump in any way.

To be honest, I'm kinda glad I need to replace it... since week one I've had issues with the damn thing not starting up. Not sure if it was an issue with wiring or something else but I'd have to "jump start" it by putting my desktop into standby and waking it up again.

I kept my old XSPC D5 pump around even though its 8 years old now. Will be replacing the VPP755 with it this weekend.
 

· Registered
Joined
·
997 Posts
Well.. been a while since I've posted but my Alphacool VPP755 has also started making this noise now.

Purchased + installed in November 2020. I got it with the matching Alphacool Eisfach dual bay reservoir to replace an old XSPC reservoir I had. It came already installed in the reservoir and I've never messed with the pump in any way.

To be honest, I'm kinda glad I need to replace it... since week one I've had issues with the damn thing not starting up. Not sure if it was an issue with wiring or something else but I'd have to "jump start" it by putting my desktop into standby and waking it up again.

I kept my old XSPC D5 pump around even though its 8 years old now. Will be replacing the VPP755 with it this weekend.
Rep+ for being adult enough to come back and admit the VPP755 is trash. Not many would be willing to do so. If you want a PWM or "Special" D5 I can 100% recommend the Aquacomputer D5 Next.

Now someone else is going to come along and say their VPP755 is just fine.... Let's see if they are as honest as you are and come back to tell us in 6-12mo. when it breaks.
 

· Registered
Joined
·
448 Posts
Rep+ for being adult enough to come back and admit the VPP755 is trash. Not many would be willing to do so. If you want a PWM or "Special" D5 I can 100% recommend the Aquacomputer D5 Next.

Now someone else is going to come along and say their VPP755 is just fine.... Let's see if they are as honest as you are and come back to tell us in 6-12mo. when it breaks.
Unfortunately, I don't think I posted in this thread before. I wish I found the thread prior to making my purchase, but I only found it when I was trying to research why the damn thing would randomly refuse to start.

Pulled the pump today, no obvious signs of damage except for cracked plastic white washer. Cracked, got loose, and started rattling around causing the noise I guess.
Looking at the pump... I dont really understand why that plastic washer + the other two black ones underneath it are even necessary.. The magnet seems to hold the impeller in well enough, and once the pump is installed into a top, its not going anywhere anyway.

No other obvious damage on the impeller that I could see. I probably could've just taken out the washers and reinstalled the pump, but at this point I just dont trust the thing.
Put my Swiftech MCP655 back in and everything is running smoothly again (correction to before, I thought it was a XSPC D5 until I grabbed it out of storage).
This Swiftech was running from November 2012 when I installed it until November 2020 when I overhauled my whole loop. 8 years of service and its gonna hit 9 years old this year. The Alphacool couldnt even last 1 year -_-

EDIT: Serial no. is 0211604500 A if anyone cares. Not going to bother with RMA. I trust my 8 year old Swiftech more and will just buy another D5 when this one eventually reaches its end of life.
 

· Registered
Joined
·
150 Posts
Well, I will be the first one saying the VPP755 is just fine... Hahahah

I will have no problem posting here if the pump fails... I know it's a matter of time really. Considering the price and that a D5 next was unavailable everywhere I looked I still think it was worth it.
I rebuild my loop couple weeks ago, added a 3080FE, a EK CE280 and moved the pump to a place where the tubes don't need to bend much. Improved noise and vibrations.
 

· Registered
Joined
·
598 Posts
Still using my VPP755 V.3 pumps without a hiccup or noise.

Been running one in an Eisbecher 250mm and the other in an Eisstation. Both made by Alphacool and confirmed to be compatible housings. I've also only exclusively used their clear premix. One has been running 3250 RPM and the other 2750 RPM daily.

I am just following up that all is still well since November 2019 for one pump and a bit later for the other.

However I'm planning to replace the 250mm Eisbecher POM for a Heatkiller 200. But I'm a little scared this might be asking for trouble. Not sure if I'll do it or not.
 
741 - 760 of 763 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top