Who's had their CPU block clog up?

rambler358 · 09-23-2009, 01:55 PM

Well, I think I've narrowed my flow rate drop issue due to a clogged CPU block. I'll find out for sure this weekend when I break it down to check.

But I wanted to see how common of an issue this is, and if there are ways to prevent it?

millertime359 · 09-23-2009, 02:08 PM

http://www.xtremesystems.org/forums/....php?t=226632&

Are you using distilled water?

Caoder · 09-23-2009, 02:20 PM

using just distilled water and a silver kill coil stops any for of clogging.

millertime359 · 09-23-2009, 02:21 PM

Quote:

Originally Posted by Caoder

using just distilled water and a silver kill coil stops any for of clogging.

and properly flushing your rad.

mikecdm · 09-23-2009, 02:26 PM

I've had some build up in my block, but that was due to me adding the liquid from highlighters to obtain a UV tint. Using strictly distilled, I haven't had any problems.

rambler358 · 09-23-2009, 02:32 PM

I'm using Koolance UV coolant. But I've heard reports of folks using distilled water and biocide and still having their blocks clog. I'll take some pics by this weekend from my result of opening the block up.

NaMcO · 09-23-2009, 02:39 PM

I never flushed my rads (bought new), never cleaned up my blocks or pumps (if new) and never had any block clog. All i use is FESER and if i ever change liquid colour i do flush everything real real well. Been "under water" since 2002.

rambler358 · 09-23-2009, 04:25 PM

As a side note, the flow rate issue I'm having is only with my CPU block. The Koolance GPU and chipset blocks I have on my 2nd loop is having no issues, and is using the same coolant.

overclocking101 · 09-23-2009, 04:37 PM

i had a clog in my supreme once from using tap water wont happen again i learned that lesson for sure. lol

dylskee · 09-23-2009, 04:48 PM

Took apart my water coolong rig last week after 3 years and not a single problem. I have used nothing but fluid xp for the last 5 years and it's been great. Are you using a flow meter of some sort?

millertime359 · 09-23-2009, 04:52 PM

The pin matrix seems to help with the cloging. The GPU blocks don't really have anything to hold the dye. I have that using too much PT Nuke can have the same effect. Its one of the reasons that silver and distilled water seems to be the best bet.

@ Namco.

I have seen that people have gotten away with doing that. No one is saying not to use Feser, but if you do, know the risks. Also the flushing of the rads and blocks doesn't take a lot of time, but it is good thing to do. People have found bits of metal in blocks and people have had flux clog up their blocks. It doesn't happen to everyone, but the extra 20 mins it takes to do it may save you a few hours of headaches down the road.

edit: rambler, you have been having alot of issues with flow. Are you positive your flow meter is working properly? Also, how are your temps?

DeanB · 09-23-2009, 04:55 PM

I haven't seen this happen before, could you email me picture?

rambler358 · 09-23-2009, 05:16 PM

Quote:

Originally Posted by dylskee

Are you using a flow meter of some sort?

Yes, 2 FM17 flow meters. One for my CPU loop, and the other for the GPU/chipset loop. No problems with the flow meters, as I even swapped them around to be sure.

rambler358 · 09-23-2009, 05:17 PM

Quote:

Originally Posted by [Koolance] Dean

I haven't seen this happen before, could you email me picture?

Who are you asking Dean?

lesstutrey · 09-23-2009, 05:44 PM

never happened to me personally, though i know someone on another board who got his fuzion very dirty somehow. If i get a used block i always open em up and brush them out with a toothbrush, i've also seen some form of blue UV coolant clog up blocks.. When i've cleaned mine there has been at most a couple pins/fins with a little black stuff stuck in between them.

DeanB · 09-23-2009, 06:41 PM

Quote:

Originally Posted by rambler358

Who are you asking Dean?

You

Asylum1 · 09-23-2009, 07:01 PM

Just spray some windex on it lol.

rambler358 · 09-23-2009, 07:31 PM

Quote:

Originally Posted by [Koolance] Dean

I haven't seen this happen before, could you email me picture?

I plan on taking it apart this weekend. I can post a pic here. But it's not a Koolance CPU block, and I'm not blaming the Koolance UV red coolant I'm using as the Koolance GPU and chipset blocks are fine.

I've swapped and tested every other component in the loop, and the CPU block is the only remaining item that could be causing the flow blockage.

SparkyJJO · 09-23-2009, 07:50 PM

Nope. But then, it would take an awful lot to clog up a fuzion.

genec57 · 09-24-2009, 07:23 AM

I recently cleaned my loop and found black gunk in my heatkiller and in my gpu blocks. No mixed metals, all copper but I did use food color to get a red coolant. I suspect that it precipitated out over time.
Related question - what is the experience with Primochill dye bomb. I like the idea of red coolant but not at the expense of my loop.

millertime359 · 09-24-2009, 07:36 AM

Quote:

Originally Posted by genec57

I recently cleaned my loop and found black gunk in my heatkiller and in my gpu blocks. No mixed metals, all copper but I did use food color to get a red coolant. I suspect that it precipitated out over time.
Related question - what is the experience with Primochill dye bomb. I like the idea of red coolant but not at the expense of my loop.

Red tubing is your best bet. Primochill makes some nice tubing in assorted colors.

Some red leds around your res can help add bling there too.

rambler358 · 09-26-2009, 06:13 PM

So I broke down my system and took the CPU block apart. Here's what I found:

Definately some wierd crud in the block, and it's right around the CPU block's inlet port area. So the big question - does this look like a likely cause of my CPU's flow rate dropping by almost half?

And could this stuff come from one of the bad rads I've had? I don't think this crud is coolant related.

millertime359 · 09-26-2009, 06:33 PM

Looks like metal shavings in that one photo.

rambler358 · 09-26-2009, 07:04 PM

Quote:

Originally Posted by millertime359

Looks like metal shavings in that one photo.

I picked some of that crud out by hand, and it did feel like there were tiny metal shavings mixed in with it.

I think it was the replacement 1080 rad I got that started leaking, that caused this issue. As one thing I noticed after first getting that rad, that I could hear something moving around in it when I shook it.

But I've now got 2 MCR320 rads to replace the 1080. And I'm hoping by cleaning out the CPU block, that this will solve the flow rate drop issue for my CPU loop.

Johnmark · 09-27-2009, 11:08 AM

Quote:

Originally Posted by rambler358

I picked some of that crud out by hand, and it did feel like there were tiny metal shavings mixed in with it.

I think it was the replacement 1080 rad I got that started leaking, that caused this issue. As one thing I noticed after first getting that rad, that I could hear something moving around in it when I shook it.

But I've now got 2 MCR320 rads to replace the 1080. And I'm hoping by cleaning out the CPU block, that this will solve the flow rate drop issue for my CPU loop.

Hard to tell from a picture but it would appear as those most of that crud is large solid paticles. I'd say the most likely cause is your dirty rad.
Again from the picture it does not look as though you plugged up the block enough to cause a 50% reduction in flow.
If that crud does contain metal then I'd tear down your pump as the rubber impeller could be chewed up. Any pump damage will definitely cause a large reduction in flow.