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So I recently just finished my first WC loop on three sapphire 5830's. I was wondering a few things.

At stock speed and cooling the cards were hard pressed to cool themselves below 75C at 3500RPM fan. And they each could do about 2,097,152,000 hashes a second(250MH/s); the main usage for my cards is to perform this hashing algorithm. (Don't ask why, I got in trouble on this site for mentioning the very name of the reason as to why I do this) Anyways...

At 1000Mhz core clock and stock voltage running them at 100% load doing the algorithm 2,558,525,440 times a second (305MH/s; +55MH/s). Now they are hard pressed to get themselves above 40C readings!

Questions; not looking for long drawn out answers, short and sweet is fine, unless you got some time. The first three have to do with cooling the last two has to do with water cooling.

So first, as I might suspect, these are great temps are they not? Can anyone out there give me a reference as to they amount of temp drop when they did their first WC loop?(Yes I know it depends on many things, just let me know if you dropped 50C or 10C; I'm just wondering)

Second,
Part A: The stock clock for 5830's is 800Mhz, how much higher above 1000Mhz can I go? Just until the cards get too hot basically; is it possible I run them too high, have them still work perfectly, then just randomly die?
Part B: If I hit this speed limit, what do I do to overcome it? Volt modding?

Third, what other parts of the card do I need to figure out how to cool now; physically where on a 5830 are these parts? I know the stock cooler blew air all over the card, I still have big huge high CFM case fans, and the cards are not burning to the touch but they are still very warm on some parts. (I plan to buy the tiny copper heat sinks that you attach with stick thermal interface tape)

Fourthly, I have a lot of tiny tiny tiny air bubbles in my system. They seem to not really effect anything. But I know this is bad?(is it). I have tried my best at tiliting, lifting, shaking, filling, starting, stopping, every applicable verb, and still cannot get them to coelase into one bubble in the res so I can just fill it with water. I have dual MPc-655 variable speed pumps.
TLDR: How can I tell if one of these pumps are getting too hot/burning out? Will I be able to feel them getting too hot before they burn out, or can they burn out and still be cool to the touch? How hot is too hot?

Finally, I used distilled water and copper sulfate as a biocide, anything else I should add or do to the water?
    
CPUMotherboardGraphicsGraphics
Intel i7 3570K Evga Z77 FTW Radeon 5830 Radeon 5830 
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CPUMotherboardGraphicsGraphics
Intel i7 3570K Evga Z77 FTW Radeon 5830 Radeon 5830 
GraphicsRAMCoolingOS
Radeon 5830 Ballistics Custom water cooling loop Windows 7 64bit Ultimate 
MonitorKeyboardPowerCase
HiSense Television and Old Monitor Razer Arctose Evga 1500W (OC's to 1650W; yes the PSU will OC) Coolermaster haf xb 
MouseMouse PadAudioOther
Chinese gaming mouse Desk, my leg, my bed, carpet, anything that it ... Volk Audio (Rip off system; given to me after s... Fleshlight installed inside of case 
  hide details  
Reply