Nice work F2F, it was another good read and nice setup. I have a quick question, I don't know 780's that good and I curious what memory overclock with each Samsung & Hynix memory is considered very good on air and is pretty common, also what is the highest memory overclock have you seen on Samsung and Hynix memory on air?
Btw are you going to be doing a review on your Qnix monitor and overclocking it?
(I hope you are and pm me when/if you do so I don't miss it, TIA)
Thanks Fast, if I had to make an estimate I would say 1700-1800Mhz is common on Hynix memory. Samsung would be 1750-1850Mhz. I have seen bot Hynix and Samsung hit in the high 1900's, so some are better than others.
Not going to do any review on the Qnix, there seems to be plenty of them out there.
From what I understand the fan that's included with the kraken is a 80mm 1500rpm fan. That's too small and too slow, it is simply not going to move enough air to adequately cool the vrms. I really think you need at least 2000rpm fan. Bad choice of fan on kraken part.
It's actually a 92mm fan. Not sure how fast it spins and what CFM it moves, but it does a fine job at cooling my card's vrm. I know there are better fans out there, but I don't feel the need to get one as of yet.
Yeah I used shims. That's with both cards running full tilt. The hottest card only sees a 10C or so difference. Individually though, I would normally see 80-85C on one card mining, now I see about 60-65. That's also running 1150/1600 OC.
Ok, wanted to make sure Those temps drops look much better in an individual card setup with a nice overclock to boot.
The lightning have excessive VRMs so they dont even run hot, unlike reference R290/X (and most custom) as well as a lot of the 780/ti models. It really is the best card for AIO cooling since the only flaw with this method is keeping VRM temps under control.
Very true. It's hard to compare a card with 16 GPU phases to one with 5 GPU phases. It's much easier to cool the mosfets when the voltage is spread over 16 phases at full load. Also having this many phases helps keep voltage ripple down too. If I still had my reference GTX 780 I'm not sure I would have gone the G10 route. Plus, I wouldn't have any way to monitor the vrm temps..
Any way to fit a VRM heatsink under it?
There is plenty of space for most vrm heatsinks. Not sure of the actual measurement, but at least an inch.
Wow, what a great overclock. Awesome results!
Thanks Chi!
Btw, thermaltake fans that come with their coolers is rubbish, its so noisy for the CFM.. if you want a quiet system, put in some Corsair SP 120mm fans, very good static pressure and CFM for radiator work and nearly half as noisy (perceived) as the thermaltakes.
AIO modded GPU with some good fans = silent cool ops, all the benefits of water cooling at a fraction of the price.
My case is filled with Corsair SP fans. The theramltake fans on the quiet setting are no louder than the Corsair SP's. Of course when you ramp them up to the Extreme setting they are pretty loud. I plan on getting some different fan's in the future.