If you are planning to use a reserator.... do try to look for a waterblock that would perform with low flow and low head, as in low QMax and low HMax
The pump in the resorator IMO is weak and definitely would not work very well when coupled with the g4.
If your planning to get a reserator....use its own block or IMO again, the swiftech mcw6002 would be a good option.

This post has been edited by TJye: Jul 27 2005, 10:12 AM

Ocforums rheostat guide

Prodigy:I suppose the link above applies to your case since both a fan and a D5 are on dc motors.

According to the calcuation there,
this is what I've found
variable resistor of at least 4.286 ohms is required as following the calculation over at the link provided from the site that a D5 consumes 2amps and 12 vdc.

applying the calculation to d5
by the Ohm's law
12v = Imax * R pump
12v/2.0 = Rpump
Rpump = 6 ohms.

if pump @ 7v , Imin=?
7v= Imin *Rpump
It is known that the pump have a resistance of 6 ohms....
so,
Imin=7v/6ohm=7/6amps

therefore lowering 12v to 7v the diff of potential is 5v
5v = Imin*Rrheostat
so,
Rrheostat = 5v/(7/6)=4.286 OHMs
a rheostat of 4.286 ohms and above would do the trick...
the rheostat must also have a rating of at least 5.000 watts.
Wrheostat = Imin * Rrheostat = 4.286*(7/6)

I think if the bigger the ohm rating of the rheostat the less sensitive the rheostat is towards lowering the voltage, vice versa. The last time I went jalan pasar I was only able to get variable resistor of only 500 ohms the smallest rating .... prb I don't know how to look for them.
It make sense to me, and I hope it helps you and pls other gurus like amok do help on this topic

I see that the preview pic of the tripple rad from the link is of a single pass type..... looks promising...

If only raymond would have sell that earlier...
the dd heatcore is costing me more than that and now the DD bulk got tax and a very long delay.....

Anyone in contact with pepijat....
It seems that the DD bulk had turn really bad
the shipment has been returned....
aih
can anyone help us?

how much does the pump cost you?

Hi guys
I've got some question
I'll have a loop of g4 + dd heatcore
I was wondering if this pump, the alphacool aqua1500, is good enough for the job?
links to the pump
Madshrimps
Pcmoddingmy
http://www.ichbinleise.de/product_info.php?products_id=575

Thanks

This post has been edited by TJye: Sep 15 2005, 12:05 PM

Its a dc pump actually, dunno about can it be a ac based pump
but I know after researching that its made by OASE
its a OASE solaraqua 1500

it can work from a 12v-24v range
12v it would make 900lph and 2m maxhead
24v it would do 1500lph and 3m maxhead
the pump comes with a transformer converting 12v into 12v - 24v
and 1 thing I've really like about the pump is the power consumption is just merely 7w
I suppose the heat dump in this case would be less

I'm giving that pump a try once everything is together and see how is it

as for the in line heat exchangers
hahah they are all over the net
but the setback is the aluminum construction.
as far as I know
one can mill those parts out of a copper block or a solid copper rod
I dunno about cast
if can also the min volume would be gaigantic to just make it economical.

This post has been edited by TJye: Sep 15 2005, 11:08 PM

SeLrAhC: shoo shoo off topic la u hehehehehhe
I dunno where to get copper rods or copper blocks
as for milling probably can ask the lab asistance to help abit on it
maybe buy him tea.

no idea on anodizing
I go and ask the lab asistance tomorrow on where he get the copper bars or blocks
The tapping can be done I know the lab got tools for this stuff
i've used some of them before
One thing I don't understand is that
what are them using to provide a water tight seal between the 2 peice?
i only see o rings on the barb

This post has been edited by TJye: Sep 15 2005, 11:22 PM

I go and ask and we would share the cost?
no problem on that since we are felow wc enthusiat

The 2 piece is the pic of the inline heat exchanger
the rod would open up into 2 piece? or it was disected by the reviewer?
I was asking if it can be open
how to make it water tight?

oh lol
anyway
your post of the g4 making me really excited
finally after 2 months, the dd bulk also everything is coming together

that is very industrial type of water cooling solution
it does look very professional and well design and it will surf its design parameters only
we all here are more of the type where
no compromise on performance, compromise everything else

Do you still have the pricelist with you?
can send it to my email?

err the G4 just got delayed again
what do you guys think?
I mean those that are buying G4 from din

hahah amok G7 its on prototype and if I did't recalled wrongly cathar was saying that g5 is about $200 and $300 for a g7
that I think is in AUD or USD I also dunno
but still a 900RM waterblock.
I will follow you guys and wait for the block from din.

I also find out something when I was desperate to check out shipping, it only takes voyuermods just 29.90 USD to ship 3 quad heatcores to malaysia.
I was thinking to start a bulk next time around, just that dunno anyone would trust me and join. hehe

1 thing I want to add on, which is the weight of the liquid would not change the max head of a pump or the flow, the density is what it matters.
That is from what I see in Bernouli's energy equation.
and always be reminded that a max head is only meassured at ZERO flow. A p-q graph would do a much better job in determine the way a pump behaves with respect to flow and pressure. It is also best to use the p-q graph to interpolate the best pump for a system, but I don't think we all here are given the equipment to generate such graph.
Such a practice being carried out by cathar http://forums.overclockers.com.au/showthread.php?t=322434
I found the pump guide very professionally carried out, it basically covers all the pump that normally being used for pc watercooling.

If anything is wrong don't shoot me for it, I'm a noob.

U all got any info anywhere about Aquaxtreme 100z DC-12?
Maxraccer over xs was saying that it would be the best pump once its out replacing the 50z

amok: reinforcement? where?