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In Reply to: RE: Break-in report: Atom + Juli@ analog is stunning for the price posted by AstroD on May 16, 2010 at 04:12:55
That's how my power is configured using UD2H. You don't need a fancy secondary ATX supply - for me it just has to be silent. Sound would improve significantly. Also make sure your BIOS is setup correctly (follow discussion here).
On F9d BIOS, I don't see anything new just GB's notes on changing CPU microcode which I consider very important.
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I installed F9d last night. I can't be sure it's real, but it seemed to sound better after the new BIOS was installed.
I tried PCI Latency Tool 3.1 and it seems to be incompatible with Win7.
I've done all the tweaks to the UD2H BIOS with great results. Awhile ago I tried changing the QPI but it wouldn't boot so I left that alone. I'm running stable at VCore 0.675v, Graphics core 400mhz / 0.850v, 100 BCLK, 6.0 memory / standard, etc.
I recently changed the AC setup to be Krakatoa -> PS Audio Duet -> Krakatoa (borrowing it from the now-unused DAC) -> UD2H and it sounds really good, very dynamic, clean midrange, very live, and using the Duet doesn't seem to have any negative effects as it has previously with sources and amps. This is using the 1212m and analog outs, Mogami 1/4" to RCA cable (remarkable cable for the price). Without using the Duet, the DAC sounds slightly better, but giving the PC the cleanest possible power, it pulls ahead. I've never actually tried these two power cables with the Duet, very impressive combo.
On using a second ATX PSU, is it a must to hardwire the dirty P24 connector to be permanently on? If I don't do that, do I always turn on the second dirty PSU first? Is there any risk of damaging the CPU this way? Thanks.
I love the ability to save and restore entire BIOS configurations with this board.
Dave
On using a second ATX PSU, is it a must to hardwire the dirty P24 connector to be permanently on?
Yes. There isn't an easier way to turn on an ATX PSU. Power at P4 is not a problem as CPU startup is controlled via BIOS and P24. If you haven't moved P4 to the dirty side yet, do so and let us know of improvements.
PS - thanks for the tip on saving / loading BIOS. What a pleasure.
I hooked up an old Antec True Power 2.0 PSU to P4 after enabling "always on" as described, and it works great. The improvement is one of those small but welcome global improvements. Does the quality of the P4 power matter much if it's only powering the CPU? Let me know if you find out what the UD2H P4 actually powers.
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