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Parhelia volt. mod. nearly finished! ( with a pencil )
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Originally posted by borat
whats that for then and where is it on parhelia?Yeah, well I'm gonna build my own lunar space lander! With blackjack aaaaannd Hookers! Actually, forget the space lander, and the blackjack. Ahhhh forget the whole thing!
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Originally posted by borat
forgive my lack of knowledge but what is an IC ?P4 Northwood 1.8GHz@2.7GHz 1.65V Albatron PX845PEV Pro
Running two Dell 2005FPW 20" Widescreen LCD
And of course, Matrox Parhelia | My Matrox histroy: Mill-I, Mill-II, Mystique, G400, Parhelia
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Originally posted by WyWyWyWy
The black creature with many legs on PCB.
I thought IC usually refers to all transistors on a die.
aka your parhelia's actual silicon inside the plastic (in this case metal) casing/the picture you see on wombat's avatar
edit: Also your wafar.
Last edited by Chrono_Wanderer; 5 January 2003, 17:38.
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I've devised an active cooling system for the IC's...
...now I just need to put some sinks on them and check out the voltmod.....
I'd like to see your card to get an idea of what I might forget otherwise.....Let us return to the moon, to stay!!!
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Sorry for the bad quality...
The bigger cooler (50*50*25 is enough) and FAN for the GPU and a big passive (like me) or a big active cooling solution for the IRU3037 and SI4920DY IC's are absolutely necessary.
Over 266MHZ my System freeze during the Benchmark, the reason was the IRU3037 and SI4920DY were not cool enough. Now with the Copper i hope to Clock over 280MHZ.
Any questions? :-)
cu ItchiAmd XP 2400+@2300MHZ
A7n8x / 2*256MB Corsair 3200
Matrox Parhelia Modded
Terratec EWX 24/96
WinTV-DVB-s
Sony DVD+RW Drive
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jeez, how many PCI slots does that take up? looks pretty good thoQ9450 + TRUE, G.Skill 2x2GB DDR2, GTX 560, ASUS X48, 1TB WD Black, Windows 7 64-bit, LG M2762D-PM 27" + 17" LG 1752TX, Corsair HX620, Antec P182, Logitech G5 (Blue)
Laptop: MSI Wind - Black
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Hi Scratchi, I'm interested in what Thermal Paste do you use between those heatsinks and the ICs? Is it just Arctic Silver III + Arctic Silver Epoxy?P4 Northwood 1.8GHz@2.7GHz 1.65V Albatron PX845PEV Pro
Running two Dell 2005FPW 20" Widescreen LCD
And of course, Matrox Parhelia | My Matrox histroy: Mill-I, Mill-II, Mystique, G400, Parhelia
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Yeah, that SI4920DY is going to cook at that output voltage and current draw. I looked at the part spec and its got a 1.6W max power dissipation with that PCB layout, assuming there is a thermal land under the IC. So I would guess the heatsink on those parts gets pretty hot
The IRU3037 is a DC to DC power regulator with current source/sink ability. Theoretically the RC feedback compensation network should be modified to adjust for the higher output voltage, which would help the part run cooler and reduce output ripple. Unfortunately I don't have Matrox's power supply schematics so I can't calculate new values :PLast edited by rylan; 6 January 2003, 19:06.
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