Den IONE 8800GT , 8800GTS (G92) Waterblock Flow Testing
Welcome to my pressure drop testing of the Danger Den IONE
full coverage waterblock for the 8800GT or 8800GTS (G92) video card.
This page will focus on the pressure drop and flow
characteristics only for this waterblock only.
The block is a finely CNC machined block of solid copper, no add on
aluminum pieces, just pure copper, a nice complete gasket and acrylic
top with goo round head stainless fittings.
Hydraulics and Pressure Drop Testing
most scientific way to determine a blocks hydraulic resistance is to test
pressure drop. Pressure drop is a measurement of pressure loss across a block
that varies with flow rate. This is basically a measurement of energy loss, and
directly influences how much flow rate you will have.
Digital Manometer 475 Mark III - Accuracy .5% of Full Scale. Range 0-200"
W.C., Resolution .1" W.C.
Instruments 7520 Series 0-5GPM, 250mm scale - Accuracy 2% of Full Scale.
Range 0-5GPM, Resolution .1GPM (can be interpolated to .02GPM)
- Water Source - Household water pressure - 50PSI at >5GPM - Because flow
rate readings are instantaneous, household tap water and water pressure are a
good and powerful source for pressure drop testing.
And if you're not familiar with
what this means, I'm providing a relative chart below with several GPU
waterblocks. For increase flow rates, the lower pressure drop
results will net the best flow rate results. This is important
for users with multiple block loops, as you need to keep an eye on flow
rate and make sure you don't install too many high restriction blocks
in the same loop to the point where flow rate is lowering to the point
where your other blocks or radiators in the same loop begin to loose
some thermal efficiency.
The Danger Den IONE is in a tie
with the Maze 5 for being the lowest pressure drop graphics card
waterblocks I have tested to date. This will be a fantastic waterblock
for users with multiple waterblocks connected together in the same
watercooling loop. The low restriction will translate into high
flow rates for other critical components in multiple block loops
like the CPU, Chipsets, or additional video cards.
Tied with the Maze 5 as the new KING OF FLOW for video cards!
Where to buy
Danger Den's Website