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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    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... :-)

  • HP Z620 workstation: HP Z620 Workstation - WS displays video & Fans Spin loudly or fails - red light with 8 beeps


    I have a HP Z620 workstation.

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    I don't know how to identify my system board other than the one she reads only numbers as "FMB-1102" and "PBLNV0GCY4N0TF" and "such as #618264-001 REV 0 G'.  He has "hp (copyright symbol) 2012 ' and"E93839"and"FXN1"written on it as well.  (After some searching I guess it's card mother 618264-001.  Which differ a card system like 619559-001 - a model later?)

    My graphics card is a XFX R7 240 780 MHz 4 GB DDR3 HDMI DVI VGA graphics card.  (I also try out a video card problem used an EVGA Nvidia GeForce GT 620 1 GB DDR3 SDRAM PCI Express 2.0 x 16 video card to see if it would make a difference.)

    Regarding the power supply, the power supply standard HP Z620 computer PC 800W Power Supply S10-800P1A 623194-002 717019-001.  (I have more than one and who have tried also.)

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    2 regardless of what video card I use, if I use the Kingston ValueRAM 16 GB Kit (2x8GB) DDR3 1333 MHz DIMM Desktop Memory Server, I get a red light and eight beeps which means a kind of ROM BIOS/CMOS-problem problem problem.  To this end, I tried pressing the button Clear CMOS without result.  I removed the CMOS battery for a sufficient period of time and again.  Nothing changes this situation.  It only happens when I put this special memory in the computer.  If I stick a USB Thumb Drive with file BIOS (BIN) in it which is 3. XX or higher, it will boot to the BIOS on a limited basis.  I also had to understand that I couldn't do anything with a USB keyboard, I could only select options using a PS/2 keyboard - maybe it crashes on some USB devices at this point?

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    4. I while on Windows, updated the BIOS to the latest version, HP Z420/Z620 Workstations system BIOS 3.90 Rev.A (August 8, 2016) using sp77058.exe (19 MB).  I've also updated other drivers as I could with the HP SoftPaq Download Manager (SDM).  None of this changes the problem at initial boot upward.  At the start he complains front chassis fan does not turn, but this is not a problem I have printing allows to stop a boot to the top, it would give just a warning and still boot normally.

    Well my computer works and does that as long as I keep this crisis recovery jumper on.  But I feel that I should be able to solve the problem and he can begin without interference and without resorting to a measure as drastic.  Suggestions anyone?

    Thanks in advance for your time.

    MR. J.


    Keep the rider of recovery of block starting on pins 2 and 3 of E15.  It's 'off' because the 3 pin is not connected.  Put the jumper to pins 2 to 3 "parks" the rider.  Put the jumper on pins 1-2 active boot block recovery mode, and the system does not start with the jumper in this position 'on '.  (You have already discovered this)

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

  • W100: speakers too quiet - loud fan


    I use the w100 - 10 d and I am not amused on the volume on the fan and
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    Is someone here who can give me some information on stakeholders and their configuration?
    In Windows 7 and Toshiba Conf. Panel sound level is on maximum level, but the sound is too quiet.
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    Thank you

    > Is there, anyone can give me some information on stakeholders and their configuration?
    > In Windows 7 and Toshiba Conf. Panel sound level is on maximum level, but the sound is too quiet.

    This booklet is a kind of Tablet PC, a small display 7 I know what speaker volume you expect, but you will not get the same volume as on 15 laptop equipped with larger speakers.
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    By the way; the sound can be configured in the control panel-> sound
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  • HP xw6400 Workstation doesn't Boot Up

    My husband has a HP XW6400 workstation won't boot to the top.  Two beeps four times during a red light on the front flashes four times, or it will be as it tries to start, stop, and then resume, then stop.  Once he has me completely in the Windows 7 boot screen, then turns off.  We have removed the RAM & reset, but it does not solve the problem.  Any suggestions on what could be the problem?

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    He went to the store to get a new CMOS battery for it.

    Thank you!

    Kim Rinde

    It's the kind of help your Boyfriend... Here is some info.

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  • HP Z820 workstation: Z820 HP does start, fans at high speed, no BIOS, no signal in the monitor.

    Hello world

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    The problem is a faulty motherboard and it was replaced under warranty.

  • xw6600 Workstation - Serial Port problems

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