water cooling questions

[stealth80]

Hi,

     I've just gone ahead and ordered a 2nd 970GTX to SLI my rig. My first question is:

 

1) Im currently using dual loops for the CPU and the GPU. How much will an additional 970GTX affect the current loop temps of the GPU loop? Using a 360mm deep rad at the moment and my current GPU never exceeds 45C with low fan speeds.

 

2) Im using Mayhems Pastel coolants which were donated as part of my sponsor. I've had a couple of issues with the red coolant in that it seems to loose its colouring pretty fast from been vibrant to murky within a few weeks. It happened the first time when the PC wasn't used for a couple of months, i thought nothing of it and replaced the coolant and it happened again within a couple of weeks. The second time i completed flushed it and used a Mayhems blitz kit on it and refreshed it before refilling it again. Now it's happened again and I would like to know what the cause is. Anyone experienced this before?

[Benji_w]

Hi,

     I've just gone ahead and ordered a 2nd 970GTX to SLI my rig. My first question is:

 

1) Im currently using dual loops for the CPU and the GPU. How much will an additional 970GTX affect the current loop temps of the GPU loop? Using a 360mm deep rad at the moment and my current GPU never exceeds 45C with low fan speeds.

 

2) Im using Mayhems Pastel coolants which were donated as part of my sponsor. I've had a couple of issues with the red coolant in that it seems to loose its colouring pretty fast from been vibrant to murky within a few weeks. It happened the first time when the PC wasn't used for a couple of months, i thought nothing of it and replaced the coolant and it happened again within a couple of weeks. The second time i completed flushed it and used a Mayhems blitz kit on it and refreshed it before refilling it again. Now it's happened again and I would like to know what the cause is. Anyone experienced this before?

 

1. not sure, probably won't add much heat in all honesty
2. Contact Mick from mayhems and he will pretty much give you all the answers, you can contact them in loads of different ways.

[W-L]

-SNIP-

 

For the GPU loop with a thick 360mm rad you will have more than enough cooling for two cards, as for the color change in the system it's highly likely due to the PH balance in the system changing overtime causing a color change.

[Dabasepc]

the heat has an impact on the coolant.

 

watch this 

https://www.youtube.com/watch?v=rjpefXm4YYs

[stealth80]

I spoke to Mick he blamed an XSPC rad I have in the loop which didn't cause issues with the blood red coolant I had previously in it. That Video is good, however its my CPU loop which is the issue which has a 240mm + 360mm rad in it and Ive never seen it above like 48C.

 

Good news on temps though, thats one concern put to bed

[W-L]

I spoke to Mick he blamed an XSPC rad I have in the loop which didn't cause issues with the blood red coolant I had previously in it. That Video is good, however its my CPU loop which is the issue which has a 240mm + 360mm rad in it and Ive never seen it above like 48C.

 

Good news on temps though, thats one concern put to bed

 

Check your current fluid if you can get some PH strips since the fluid should be slightly alkaline and will overtime become acidic when it ages or degrades which is why the fluids need to be changed every so often.

[saab_gobbler]

This has me a bit worried =/ I've been planning to use (and still will use) mayhems pastel red in my upcoming loop, but I'm worried about its longevity. I'd really like to only have to change it every 8mo->1yr, 6mo at the very most, but I keep seeing posts about issues popping up in relatively short order. I bought some tubing (alphatube), but after receiving it learned about plasticizer, so now I'm re-purchasing that (primochill advanced LRT), and I've already got my rads (like jayztwocents I'm using hardwarelabs black ice nemesis, a 280 gtx & 120 gts). I also have high-heat outputting parts (8350 & 290).

 

I guess all I can do is flush the rads really well before hand with near-boiling de-ionized water, then I'll do 3 fill & flushes, first with the primochill cleanser, then with blitz, then with plain de-ionized water, then fill the loop with mayhems. Are there any other precautions I can take to avoid this? Those are the biggest rads I can use, and they best match my other parts, so I'm kinda stuck in that respect. This will be my first custom loop so I'm trying to get everything just right the first time around =]

 

If anyone with more experience could chime in that would be killer (also sorry to OP I'm really not trying to hijack the thread, hopefully we can both get some answers =])

[W-L]

-SNIP-

 

It seems to be isolated cases from what I've seen where something in the loop is causing a change in PH very quickly, personally I've run white pastel for a good 7-8 months now with no problems, I'm planning on going for approx 12 month fluid changes. 

[stealth80]

just to add my white coolant in my gpu loop is fine

[Benji_w]

This has me a bit worried =/ I've been planning to use (and still will use) mayhems pastel red in my upcoming loop, but I'm worried about its longevity. I'd really like to only have to change it every 8mo->1yr, 6mo at the very most, but I keep seeing posts about issues popping up in relatively short order. I bought some tubing (alphatube), but after receiving it learned about plasticizer, so now I'm re-purchasing that (primochill advanced LRT), and I've already got my rads (like jayztwocents I'm using hardwarelabs black ice nemesis, a 280 gtx & 120 gts). I also have high-heat outputting parts (8350 & 290).

 

I guess all I can do is flush the rads really well before hand with near-boiling de-ionized water, then I'll do 3 fill & flushes, first with the primochill cleanser, then with blitz, then with plain de-ionized water, then fill the loop with mayhems. Are there any other precautions I can take to avoid this? Those are the biggest rads I can use, and they best match my other parts, so I'm kinda stuck in that respect. This will be my first custom loop so I'm trying to get everything just right the first time around =]

 

If anyone with more experience could chime in that would be killer (also sorry to OP I'm really not trying to hijack the thread, hopefully we can both get some answers =])

 

Mayhems has one of if not THE BEST customer support I've ever seen, Mick and the rest of them will literally go out of their way to make sure your experience with them as a consumer is the best as for cooling down the FX 8350, unless you're pumping 1.6v into it like me when gaming, the heat will overpower those rads alone, my custom loop has 1x 360mm rad and 1x 240mm rad and it manages to keep my temps below 60c while gaming but stress testing is a different story. 

[saab_gobbler]

Mayhems has one of if not THE BEST customer support I've ever seen, Mick and the rest of them will literally go out of their way to make sure your experience with them as a consumer is the best as for cooling down the FX 8350, unless you're pumping 1.6v into it like me when gaming, the heat will overpower those rads alone, my custom loop has 1x 360mm rad and 1x 240mm rad and it manages to keep my temps below 60c while gaming but stress testing is a different story. 

Glad to hear their CS is top notch, that puts me a bit more at ease =] I will probably only be doing very light overclocking (like 4.2-4.5 max, basically whatever I can get away with without increasing voltage by much/if any). I'm a little confused by the wording though, you don't think the rads will be enough to handle my parts at stock/mild OC? I won't be stressing the system too hard, basically just light gaming.

[Benji_w]

Glad to hear their CS is top notch, that puts me a bit more at ease =] I will probably only be doing very light overclocking (like 4.2-4.5 max, basically whatever I can get away with without increasing voltage by much/if any). I'm a little confused by the wording though, you don't think the rads will be enough to handle my parts at stock/mild OC? I won't be stressing the system too hard, basically just light gaming.

 

If you can fit bigger rads then I would recommend doing so. Mod your case if you have too.

 

 

[saab_gobbler]

If you can fit bigger rads then I would recommend doing so. Mod your case if you have too.

 

Yah, already am =/ Those were the max I could reasonably fit & the 280 is already going to be top-mounted externally. Build log:

 

http://linustechtips.com/main/topic/490522-build-log-project-bulldozer/

[Benji_w]

Yah, already am =/ Those were the max I could reasonably fit & the 280 is already going to be top-mounted externally. Build log:

 

http://linustechtips.com/main/topic/490522-build-log-project-bulldozer/

 

Ah your overclock will be limited by that motherboard anyway so you'll probably be okay.

[saab_gobbler]

Ah your overclock will be limited by that motherboard anyway so you'll probably be okay.

 

Yah, I was going to upgrade it but I figured at this point I may as well just wait for the next-gen chips & get a ddr4 board & just do everything at once ¯\_(ツ)_/¯

 

@OP sorry for hijacking your thread m8!