xw6400 & xw6600 secret fan: quiet workstations

My best info on tweaking of the workstations xw6400 and xw6600 to run more quietly without increasing the internal temperature when measured with specific utilities has been noticed (and also BIOS) in the xw6600 is attached.

I mention the speed reducers of Noctua fan resistance, 4-wire, and those that work very well for fans of memory and the chipset.  Also, I swapped the xw6600 parts in the xw6400 (fans and broadcasters) the advantage of the most recent HP engineering.

Overall my versions optimized for these workstations run as quiet or more calmly than the Z620, at little cost.  The 4 speed reducers son PWM-preserving you seek are more easily purchased through a pack of 3 of Noctua, found if you google NA-SRC7.  Use one on your memory fan and the other on your chipset fan and fan of memory if you have a xw6600.  Other methods of note are more than a project, but I recommend doing at least the addition of the adapter.

See attachment:

A little added information about fan of little chipset of the xw6600 who run very fast in the xw6600 and is slow.  The Northbridge chipset on the xw6400 has only a radiator... not a fan of any other movement of air attracted on the radiator by the memory fan.  I saw no deficit of cooling by dropping this 3745 up to 2752 chipset fan speed.  About 1 k rpm speed reduction significantly reduced the total noise of work stations, however.  The same concept goes for why add a reducer of Noctua 4 son LNA to fan fan speed memory of the xw6600... lower the speed and noise of the fan with no measurable in time of the memory increase, while maintaining the ability of the motherboard to increase the speed of the fan automatically if necessary.

HP uses the PWM controlled EFB0412HD Delta 40x40x20mm which has one - modifier 7R49 (on the label).  These modifiers to identify fine details of the fan, and for is this it indicates that control PWM has been added, the wires are short and white connect type conventional PWM.

If you never had to get only a replacement fan 3 son he will run to 12VDC full speed, with no gas HP PWM applied.  Here is the RPM:

3-wire (son PWM is unplugged or 3-wire fan): 7500-8500 (measured on several xw6600s)

No adapter and with reference HP PWM applied Butterfly: 3745 (average)

"Adapter 4 son Noctua LNA more reference HP gas: 3101"

"Adapter 4 son Noctua ULNA more reference HP gas: 2752"

Noctua ULNA 4-wire adapters are difficult to get, but at least add in adapters Noctua ULNA NA-RC7 4 wires on your xw6600 fan memory and chipset fan.  Those who are easy to find in a 3-pack by searching for "NA-SRC7.

Attached are the specs of the Delta with the version HD of this fan 12VDC highlighted and a pic of the fan with this modifier code on its label.

Tags: HP Desktops

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    .. then why is my Win Index Score 7.7?

    The score does not change after the settings (clock speed, fan speed)...

    I have overclocked GPU 'Gigabyte GeForce 750Ti OC Version' 1072 (base) 1150 (BOOST) MHz and 2000 RPM @ idle fans. -Without changing partition :(

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    Windows really calculate the speed of the CPU, or should I just use the basic CPU specifications?

    On the GPU, it's the "Maxwell" card more slow (to my knowledge), but I have overclocked it to Win Index partition...

    I ran "Catzilla" and the GPU score a 100% before the overclock, the CPU score is 90% @ 4 GHz and "IS" 100% currently to 4.5 GHz.

    Hope you can give me a nice thorough answer on the measurement taken by Win Exp Index procedures.

    And when the "Broadwell" CPU is loose, I will receive the same score when I buy the specification "i5 k?

    Have a good day and thank you in advance :D

    There is absolutely nothing wrong with these numbers even if they were representative of the actual performance.

    As Zig - Zag has already said, they are a GUIDE and a guide is not particularly accurate at this. If your computer's performance are good, and I suspect it is, continue to use it and stop worrying about WEI... :-)

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    MR. J.

    Juggerknight,

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    In addition, do not mix unbuffered and registered in the same system memory.  Use either one or the other.

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    Thank you

    > Is there, anyone can give me some information on stakeholders and their configuration?
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    Kim Rinde

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