DD Maze 4 GPU w/b 80w tec to 172w tec ?

[Gamer67]

I currently have the Swifty MCW50-t with a 172w pelt that I placed in it some months ago. Well it has a small leak from time to time (prob due to the number of times I have swapped it off and on various cards)

Anyway I was thinking of trying the DD Maze 4 with the 80w pelt and was wondering first of all if anyone is running one of these on a 9800XT ?

And has anyone swapped out the 80 watt for a 172w ?

If so was it a fairly easy swap? much like the swifty ?



Cheers ;)

[sandman]

I think it'll work fine.

[Slickthellama]

yes, but you will need a 24V PSU, I recommend running two regular PSUs for about 22$ each in parallel like so

12V---->
______ \____>24V pelt>--->Ground
______ /
12V---->

[Gamer67]

I already use a Meanwell PSU for the 172w, so no problems there ...;)

[sandman]

If it'll fit, i'd say it'll work, and it should fit.

[Creative]

Ive heard that the DD one is a better block than the swifty one in terms of cooling etc?

Would this be a fair assumption?

Cheers :)

[Slickthellama]

id say so. Me and my friend have very VERY similar setups considering we bought our stuff at the same time for cooltechnica. We both have L30s/DD Extreme RADs same fan but he got swifty blocks and i got DD blocks. We both run P4 2.4Cs but his run at 42C idle and 50C load and mine run at 30C idle and 35C load. So I think DD makes a much better Water block. Swiftech's HSs however really rule. Their waterblocks just suck.

[sandman]

I beg to differ, swiftech MCW5002 blocks are better than any waterblock DD has ever made.

[NinCom]

Gamer67:
What specs isit on that mean well supply ? Does it work well with the 172w tec ?

[Gamer67]

Ive heard that the DD one is a better block than the swifty one in terms of cooling etc?

I will let you know once I recive the DD block, the shop I ordered it from sent me an AMD CPU block by mistake :rolleyes:

Should be here by mon-tues



What specs isit on that mean well supply ? Does it work well with the 172w tec ?

MEAN WELL S-320-12

Output: 12Volts, 25Amps Switching PSU

Current Range 0-25A

215mm x 115mm x 50mm (8.47"x4.53"x1.97")

Will power a 226w pelt, no problem

I have never had a problem with it apart from shocking the living $$$$ out of myself one time when in a rush to power up some new gear. I put my fingers on the terminals and shorted out the power to the whole house. "ouch"

[NinCom]

Gamer67:
Is the 172w a 24v pelt you have ?

*edit*
We´re talking about a 40x40mm pelt ?!

[sandman]

Yes, and Yes.

[Gamer67]

172W DRIFT 0.8 Potted

Imax = 11.3 Amps

Qmax = 172 Watts

Vmax = 24.6 Volts

Delta Tmax = 69 (C)

Size = 40mm X 40mm X 3.2mm

[NinCom]

172W DRIFT 0.8 Potted

Imax = 11.3 Amps

Qmax = 172 Watts

Vmax = 24.6 Volts

Delta Tmax = 69 (C)

Size = 40mm X 40mm X 3.2mm

Ok..
Do you get better temps with the 172w then the 80w pelt ? asking because you ar pumping maybe 13.5v to te 172w tec..and its Vmax is 24 ? many people says it not good and thats i worse than a 80w pelt on 12v ?! But it intresting if you get better temps with the 172w...

[kommando]

So who knwos which is better with the 172w pelt, the siwfty or the dd??

[NinCom]

I seen som test on Maze4 and swifty MCW50 and DD are like 2C better... Dont know how it is with a pelt..

[Oc2theSkY]

Seems like the dd cools pelts better due to the water path design. Also if you are only giving a 172 watt pelt half of the volts it needs, you can't really expect more than half of its rating, give or take alittle of course.

[Creative]

I also read that there is no cold plate in the swifty so therefore you have water running over the hot side all the time - this is why my water gets so damn hot I was told?

Not sure :)

[Soulburner]

Originally posted by NinCom
172W DRIFT 0.8 Potted

Imax = 11.3 Amps

Qmax = 172 Watts

Vmax = 24.6 Volts

Delta Tmax = 69 (C)

Size = 40mm X 40mm X 3.2mm


That's the same one I am looking at to put in the MAZE4-1.

It is my understanding that its just simple math. Since the standard 80w TECs are rated at 15-16v, running them at 12v should give 55-60w or so (the description of the MCW50-T seems to agree with this as it states 53w). However since the 172 watter is rated at 24.6v, running it at 12v would give you somewhere in the 80-90w range which is clearly the better option.

I am no expert on TECs but this is how I take it.

[BioBlade]

i was wondering if a dd4+80watt is enough to cool @ 9800xt ?
and is it safe to use ?

thnx

[G H Z]

Yes it is enough even with full vmod's. Must be a clean install with good contact/tim.

[MrCrusher]

I have been playing with a MCW50-T on my 9800xt and once you do the volt mod and OC the card completely overwhelms the 80w pelt
See this thread MCW50-T Overwhelmed (http://www.xtremesystems.org/forums/showthread.php?postid=330756#post330756)

I now have a 172w pelt @ 12v on the MCW50-T and my temps have come down and OC went up but as soon as i start to turn up the volts the temps shoot up. I am going to look for a 24v power supply.

[Jabo]

Soulburner -> you are 100% right mate with your calcs and on top of that 172 watter dumps much less heat thatn 80 watter while provideing beter cooling win-win situation (we are talking 12-13 volts here)

80 watter is barely enough for my R9500 which is only oce'd without any volt mods and still priducces temps in a region of 18 deg C at full load (3DMark2k3 test run).
I'd gone for 22 watter to cool R9800XT with volt mods and highly oced (smell record braker here ;) )