ever put dielectric grease on the coldplate?

[brgatesjr]

I have a dual water cooled peltier system on a vp6 running two PIII 1.1e's @ 1307. I have tried everything I can think of to keep the condensation off my coldplate. I cut out the neoprene nice and neat put there always seems to be gaps. Frost and condensation build up there. I was wondering if it would work to cover the edges of the coldplate with d-grease to stop this from happening? Any other ideas would be greatly appreciated. I have been a lurker on this board for a while and have tried to figure this out on my own til now.
Thanks,
Bruce

[Bender]

You should be fine as long as you don't get it on the contact areas of the pelt and cpu. You can even use the grease in the socket holes. I hope to see your around the boards more often. Don't feal affraid of posting any questions you have.

[brgatesjr]

Thanks for the info. This so far is the only real problem I have had. Other than having a usful hold down for the water block/pelt combo. The one that came from DanderDen was OK except when I really tried to clamp it down....snap...of came the retainer clips. I had to manufactur my own hold downs at that point. I modeled them after the AMD style. With a little JB Weld and some threaded nylon 1/4 bars I created a new hold down that I think works better than some I've seen for socket style...anyway I'm rambling now.
Thanks,
Bruce

[Bender]

So did your new clamp use the 4 holes around the socket? I hate clamps that rip off the little plastic clips. Is you bock a Maze1 then? The maze2 is really cool since it uses the 4 hole mounting system and it has a seperate clamping system for the peltier.

[muddocktor]

What I did with the P3 1.26S system I just put together is after I insulated around the socket, I cut a piece of 1/2" neoprene to sit around the coldplate, pushed down to the neoprene around the socket. It comes up about 1-2 mm higher than the peltier power leads. After I got the DD clamp mounted, I carefully pushed the neoprene around the coldplate and used a very thin layer of silicone seal between it and the coldplate/waterblock. So far I haven't had any condensation problems and I'm running at -8° C when under load, and even lower than that @ idle. Also, I agree that it is aggrevating to the extreme about the wires on the DD clip coming out of the top of the clamping mechanism. For a while I thought I was going to need 3 hands to install the clip.

[Colin]

Welcome to the forums brgatesjr! :D Bender covered the grease issue. I am curious as to the rest of your setup. I wonder if something is holding you back? Not trying to be condesending but the reason I ask is my dual 1.1s are at 1309 MHz with a pair of Glaciators.

[brgatesjr]

I am only getting down to about 12C under load right now. I think I could do better. MBM5 says my 12v is at 11.75 average. If that is correct then the pelts should be working right. I should be getting plenty of amps with my Enermax 650. I use DD Maze I's with cold plates and 80w pelts and ASII. The chips are set to 100 1/3 fsb plus 19. at 1.8v core. My RAM is PC133 not really sure what specs are. I have a large res with 1.8 gal distilled h20 10% anitfreeze solution using 250gph pump. Like I stated above though not very clearly I created a clamp down system using two threaded 1/4" nylon rods JB Welded to opposite sides of the socket. A piece of alluminum bar tapped with a 1/4" nylon threaded thumb screw applies centralized force on top of the water block. I am getting much great force than with the stock DanderDen clamp. After the tabs broke I had to improvize. Perhaps it is my OC settings any suggestions would be great.
Thanks,
Bruce

[Colin]

I believe more Vcore will help you get more speed. Mine is set at 1.95 volts although it reads as 1.91 volts.

[brgatesjr]

I was messing around with this as we speak. I upped the core voltage to 1.90 and the fsb to 129 1/4 now running at 1420mhz. I did a little teawing of my fans to improve temps also. added another fan to the rad cube. Now getting 35f iddle and 65f load I would like to get lower though. Even with the Vcore at 1.95 I was still not able to sqeeze one more mhz fsb out so I went back down to 1.90 anyway. Thanks for the help any other ideas would be great. Not bad dual PIII 1100E's @ 1420. Keep on tweaking!!!
B

[Colin]

Happy to be of service. I pulled the Glaciators today and installed a pair of Maze 1Cs. I won't know if it's stable for a couple of days but it's been running Prime and CPUBurn for the last hour without a hiccup at 1365 MHz.. A pair of pelts are next. Your results are encouraging! :D

[brgatesjr]

had one crash at 129 fsb so I dropped it down to 128 fsb rock solid for hours gaming on Civ3 (the greatest game ever) at 1409 both CPU's are 24C which I would like to have lower. Are these good temps for two maze I's cooler cube and a heater core with 1.5 g res. and 4 case fans and 80w pelts?
Thanks,
B

[brgatesjr]

had a few more hicups at 1400 so I bumped it back down to 1365. I think it is my temps for sure. Runs great for a long time but then when it the temps get up around 80f it reboots. My idle temps are so much lower around 35f. How can I keep my load temps delta a lot lower?
Thanks,
B

[Colin]

Sorry I missed this. To lower your temps you will need to cool your pelts more, i.e. the water or use a larger pelt.

BTW, I had to back off to 1333 MHz or 121 FSB. At 1356 my software runs fine but Prime and CPUBurn fail.