So, i've finally made some decisions regarding the hardware. I am going to use pci-e board, both because it is more period correct for this CPUs and because i want that 8800GT - it outperforms HD3850/70 significantly, especially in later games, higher resolutions and in terms of consistency/stutters. So here are videocard and soundcard:
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From three 8800GT i have i've chosen this one because it has slight factory overclock (+10% core and shaders) and has the most reasonable cooler. After some cleaning and lubrication it works perfectly and is configured properly out of the box - runs at ~800RPM and 45C and idle and reaches up to ~60C with ~2600RPM which are becoming audible but not crazy loud after prolonged 100% load. 60C as target is exactly what i want for bumpgate GPU...
The motherboard... i do not like, but i am stuck with it, for now at least.
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Here the included cooler for VRM/chipset can be seen. It works, very poorly. "Motherboard" sensor never shows above ~45-50C, but thermocouple attached to a heat pipe shows up to 70C... which is not going to end well. This is also from chipset, not VRM. Lifting heatsink from VRM changes almost nothing and VRM does not get crazy hot either.
I've been thinking what to do and ultimately the solution i am going with is this:
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Yeah, i simply lowered the fan on tower cooler a bit so that it creates some airflow over chipset heatsink:
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This lowered the temperature measured at heatpipe to around 50C, which is far from amazing, but i am going to leave it like that - if it dies it dies. The thing is way too hot and i am not going to go out of my way to fix it. I'll likely just replace the board at some point.
For CPU this does not matter, this cooler is an overkill, it never goes above 50C and usually sits below 40 (no fan control...).
I also updated BIOS to the latest beta, but i still can not disable Q-fan - with it disabled windows (or even installer from CD) crashes on boot. Good job asus. I anticipated issues with this though, so i replaced tower fan with fixed 1500RPM one which is not too loud and not going to use CPU_FAN connector at all.
SSD works, but with SATA1 speed, as expected. Good job nvidia. Not critical though, fast enough as is, probably not going to bother. Or may be i'll get an SSD can be switched to SATA2 later...
I can not believe how buggy this hardware is...
At least sound seems to work properly, i've read enough complains about nforce4 PCI issues + soundcards working poorly together, so i kind of expected that. It would have finally been a deal breaker though and in that case i would have switched to AGP board.
Also, about sound. I've ran a few benchmarks just to see how that 10% overclock affects things and noticed something that surprised me. I then retested it with the same card, multiple times, just to be sure. This is how crysis benchmark is affected by having that x-fi card vs integrated realtek:
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Which also makes the fact that single 8800GT becomes a bottleneck at 1920x1080 in crysis more noticeable.
Overall things are progressing reasonably well, nothing important died so far. I still want to reinstall windows from scratch, probably XP + Vista, before i assemble everything into the case. Because i am not going to have an optical drive in the case i've chosen and it is by far easier to use a DVD than to mess with thumb drives + XP...