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post #7391 of 8077
Quote:
Originally Posted by Splave View Post

haha sorry guys I didnt mean I Was trying to sell any mem, I just wondered what you would value such memory say if gskill would entertain a group buy of some sort. Im sure it will cost a premium though.
8/10 troll.
I'll give you AUD$270 for 2 sticks. yknow. what I paid for a retail kit of 3600c16.
post #7392 of 8077
Quote:
Originally Posted by Edge0fsanity View Post

i already have the ek ram block and heatspreaders. Originally the ram was getting watercooled for aesthetic purposes. The ram is getting watercooled no matter what, i only wanted to know if this ~50c thermal barrier is normal even at rated ram speeds. I don't want to void the warranty on my ram if its not normal and i potentially have a bad stick. Memtest to 200% no errors both at rated speeds and a few different oc's i know to be stable so long as ram is under 50c. I've literally tried everything i can think of as far as cpu clocks, uncore clocks, vcore, dramV, sa, vccio, etc to see if that affects stability. No difference, same result every time.

I'm just curious if anyone else has experienced this with their TZ ram.
WC is the near future. You want to know what's going on in the current (air cooled with heat spreaders) situation isn't it?

On air, you can't cool lower than the temps in your box where the memory modules are. Maybe your memory modules are in a dead spot.

If anything, at 10500ft, temperatures will be much lower than at for example 1000ft. But so will air pressure, and thermal conductivity be much lower at 10500ft than at for example 1000ft.

Ask G.Skill what operating temps are safe when overclocking TZ memory?
Edited by Dokter Bibber - 2/29/16 at 10:37pm
post #7393 of 8077
Thread Starter 
Quote:
Originally Posted by Splave View Post

haha sorry guys I didnt mean I Was trying to sell any mem, I just wondered what you would value such memory say if gskill would entertain a group buy of some sort. Im sure it will cost a premium though.

http://www.overclock.net/f/325/appraisals
Quote:
Originally Posted by zeropluszero View Post

Quote:
Originally Posted by Splave View Post

haha sorry guys I didnt mean I Was trying to sell any mem, I just wondered what you would value such memory say if gskill would entertain a group buy of some sort. Im sure it will cost a premium though.
8/10 troll.
I'll give you AUD$270 for 2 sticks. yknow. what I paid for a retail kit of 3600c16.

use PM box
Edited by coolhandluke41 - 2/29/16 at 10:31pm
    
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post #7394 of 8077



Edited by kertsz - 3/5/16 at 2:05pm
post #7395 of 8077
That looks beautiful! What is the memory clocked at?
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post #7396 of 8077
Quote:
Originally Posted by Dokter Bibber View Post

WC is the near future. You want to know what's going on in the current (air cooled with heat spreaders) situation isn't it?

On air, you can't cool lower than the temps in your box where the memory modules are. Maybe your memory modules are in a dead spot.

If anything, at 10500ft, temperatures will be much lower than at for example 1000ft. But so will air pressure, and thermal conductivity be much lower at 10500ft than at for example 1000ft.

Ask G.Skill what operating temps are safe when overclocking TZ memory?

i fixed the issue temporarily by pointing two 120mm case fans directly at the ram without mounting them to anything. Seems to have fixed the instability. Ram runs around ~40c at its absolute hottest now with more voltage and higher freq while using my quiet fan profile for folding. I think i need to memtest this stuff to ~1000% overnight at rated speeds to see if all 4 sticks are good.

I sent an email out to gskill tech support this morning asking about thermal limits and instability at rated speeds.

After i hear back from them and everything checks out i'll just wc the ram. I don't like having loose case fans sitting on or next to components. Should only cost me a few hours of my time.
    
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post #7397 of 8077
Quote:
Originally Posted by kertsz View Post

That looks beautiful and ready for everything.
But you should cool your CPU. tongue.gif

Quote:
Originally Posted by Edge0fsanity View Post

i fixed the issue temporarily by pointing two 120mm case fans directly at the ram without mounting them to anything. Seems to have fixed the instability. Ram runs around ~40c at its absolute hottest now with more voltage and higher freq while using my quiet fan profile for folding. I think i need to memtest this stuff to ~1000% overnight at rated speeds to see if all 4 sticks are good.

I sent an email out to gskill tech support this morning asking about thermal limits and instability at rated speeds.

After i hear back from them and everything checks out i'll just wc the ram. I don't like having loose case fans sitting on or next to components. Should only cost me a few hours of my time.
Yeah wc is probably the best solution in your case. But I'm glad that you made some progress with the air cooling of the RAM. Even though you're going to wc the RAM soon.

So it turned out to be the RAM was in a dead spot in your case's air flow? Or do you think that something else was going on?

You could also check for dead spots by fixing a short piece of sewing thread in a contrasting colour to the middle of the PC part(s) or area(s) that you want to test. And then switch on your box.
If you don't have a case with a window, like me, you can temporarily duct tape a piece of plexi glass to the case, to see what happens to the sewing thread(s).

(I thought that you'd given up, or maybe just ignored my post.)
post #7398 of 8077
Quote:
Originally Posted by Dokter Bibber View Post

That looks beautiful and ready for everything.
But you should cool your CPU. tongue.gif
Yeah wc is probably the best solution in your case. But I'm glad that you made some progress with the air cooling of the RAM. Even though you're going to wc the RAM soon.

So it turned out to be the RAM was in a dead spot in your case's air flow? Or do you think that something else was going on?

You could also check for dead spots by fixing a short piece of sewing thread in a contrasting colour to the middle of the PC part(s) or area(s) that you want to test. And then switch on your box.
If you don't have a case with a window, like me, you can temporarily duct tape a piece of plexi glass to the case, to see what happens to the sewing thread(s).

(I thought that you'd given up, or maybe just ignored my post.)

i never give up, trying to get this thing to fold 24/7 stable with the heavy overclocking i've done has been challenging but i'm getting close.

I think its partially in a dead spot. I have a cl s8 case with a radiator mounted in every possible location without a pedestal and all rad fans set to intake. I have 1320mm of rad space right now. Front panel is vented and both side panels are vented/window so too much positive pressure is not an issue. What i believe happens at lower fan speeds is that the rear exhaust fan sucks out all air coming from the top rads and the rest gets pushed out the front vent above the front rad. The front rad is an ek xe and it is too thick to just be in push with the thin air here. So low fan speeds mean the air moving through it just doesn't make it to the ram positioned roughly 10-12 inches in front of it. When i run the fans at full speed which is ~2200 rpm air is able to make it to the ram and flow over it stabilizing the temps. I can put my hand in front of that ek xe rad and feel hardly any air moving through it with fans set at ~1300rpm(this is my noise tolerance threshold for fan speed). This is my theory on why this ram cooling issue exists for me.

Your string test would probably confirm it. One other issue i've noticed is the heatsinks on the TZ ram are very thick. There is literally 0 space in between the dimms for air to flow through leaving only the fins on top of the ram as the primary cooling mechanism. I never had these issues with the corsair vengeance lpx cl 15 3000mhz ram i ran previously. I never took it past its rated speeds/voltage but i never had cooling issues with it either running the same voltage as the TZ. The heatspreaders on the lpx ram are much thinner and allow for some air to flow between the dimms.

With a full tear down and rebuild with hardline soon every rad is going to be put in push/pull. Should fix any low speed fan air flow issues for passive cooling of components. Although i don't think there will be anything left to passively cool. Ram and and mobo vrm are getting wc'd at that time. Cpu and both gpus are already under water. Maybe i could still water cool an ssd...
    
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post #7399 of 8077
@Edge0fsanity The issue you have is the altitude. Most PC fans are tested and specced at sea level.
But as I posted earlier, air pressure and thermal conductivity are way down at your altitude. You need to find a way to recalculate the manufacturer's specs of all your fans, from sea level to your altitude. (Even the ones for your wc loop.) And then decide if you need higher cfm ones or not. Or start using high static pressure fans suited for your altitude.
High airflow vs High static pressure: http://www.tomshardware.co.uk/faq/id-2080096/high-airflow-high-static-pressure-fans-air-cooling.html
Alas I can't help you with the recalculation. But here are some calculators in the Engineering Tools menu option at the top left: http://www.comairrotron.com/solving-high-altitude-cooling-problems

EDIT: "And then decide if you need higher cfm ones or not." This is a typo. It should be "And then decide if you need higher pressure (gradient) ones (has to do with air mass) or not." When air cooling, air mass is what cools, not volume.
Air has more mass (weight) at sea level, than at high altitude.
Edited by Dokter Bibber - 3/4/16 at 10:07am
post #7400 of 8077
Pulled off the spreaders off my budget G.Skill Aegis 2x16GB kit. I must say that G.Skill bins their stuff pretty tightly as this stuff won't clock worth a damn. 2800MHz, 14-15-15-36-1T is about all I can get out of it. frown.gif

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