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 Post subject: Need comments
PostPosted: Tue Nov 23, 2004 3:44 am 

Joined: Tue Nov 23, 2004 2:55 am
Posts: 1
Hi All

My current system:
P4 1.6GHz, active cooling with Arctic Cooling Super Silent 4
ATI Radeon 8600Pro, passive cooling with Zalman ZM80C-HP
MB Asus P4S333
2 HD, both in passive Zalman ZM-2HC2 cooler.
PSU - NorthQ NQ-4001, 400W, One 120 mm fan

Temperatures in the system (ambient temperature ~22C) is:
Idle: CPU - 40, MB - 28, HD1 - 46, HD2 - 42
Load: CPU - 45, MB - 33, HD1 - 48, HD2 - 48

My plans are to by the Scythe NCU-1000/2000 passive CPU-cooling and a new fanless PSU (Antec Phantom or Silverstone ST30NF).

Doing this my system will have no fans and the heat may become a problem.

I have done some mesurements on the AC side and have found that the system drains at most 0,[email protected]=140W. The NQ-4001 have a specified efficiency of 55%@30W to 65%@400W. Calculating with 60% this give a heat loss of 56W.
Both PSU:s I'm planning for have an efficency of ~78% wich would give something like 31W of heat instead of 56W I have today.

Are the caluclations correct?
Are the calculations relevant?
Can you draw any conclusions from this?


 Post subject:
PostPosted: Tue Nov 23, 2004 9:20 am 
Patron of SPCR

Joined: Mon May 03, 2004 12:14 am
Posts: 475
Location: Leeds, UK
I think heat will become a problem. Perhaps a Nexus exhaust fan on a fanmate would be enough to resolve it, however, without excessive noise.

X2 4200+, XP-90 + Nexus 92mm, VTX 5750, SLK3700-BQE + AcoustiPack, 2 Nexus 120mm, Asrock 939Dual-SATA2, Raptor 74GB, Pioneer DVR-109B, S12 430. [url=""]SPCR thread[/url].
[url=""]HTPC build[/url] - NSK2480, Biostar TA690G, 4850e, Asus EAH5570 Silent, Minja, 4 GB RAM, WD GP .75TB + 1.5TB, iHES208 BD, Win7MC.

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