Originally posted by Topcat
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What i meant to say is those SM motherboards would just have had a much better resell value in the retro community had they included AGP slots (or PCI-E for the newer ones.)
Originally posted by Topcat
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Originally posted by Topcat
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I mean, I do have one Dell Dimension 5150 tower that currently has a Pentium 4 in it... but I was planning on swapping that with a Pentium D830 nuclear reactor (130 Watts of TDP lol) since I have one of those 3-pipe heatsinks that go into these Dell towers. Also recently got another Pentium D from another CL motherboard which can take a C2D CPU, so I do have a spare "better-than-a-Presshot" CPU now.
IDK, I guess with a future cap order, I might have you send it. But just going to the postal office for this CPU alone... probably not worth it. And given the amount of systems that go through your shop, I'm sure you might find a use for it faster than I will, even if just one time as a test CPU.
Originally posted by Topcat
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Originally posted by Topcat
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I just did a similar mod the other day on the stock AVC cooler of an Intel D845bg motherboard. Fan was rated for 200 mA at 12V, but was pulling substantially less at lower voltages. A 100-Ohm resistor ended up being perfect, dropping down the voltage to about 6V, with the fan running around 1900 RPM. But since it was a smaller 70 mm fan, I added a 470-Ohm resistor in parallel with the 100-Ohm resistor, which increase the voltage a bit and sped it up to about 2500 RPM - a little loud, but kind of needed for the Pentium 4 CPU it was cooling.
In regards to power rating of the resistor, it's pretty easy to calculate how much you will need - just put the resistor on the fan and measure the voltage drop across the resistor. In my case with the 100-Ohm resistor, the drop was 6V across the resistor (and 6V left for the fan) when running at 12V. Thus, P = (V^2)/R = (6^2)/100 = 36/100 = 0.36 Watts
Since my 100-Ohm resistor was a 1/2 Watt, it was adequate for the task.
Originally posted by Topcat
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Originally posted by ratdude747
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Originally posted by ratdude747
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