Question about HEWLETT-PACKARD xw6400 (RB278UA) Server

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Xw6400 power supply not working

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Replace it

Posted on Aug 18, 2014

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Posted on Jan 02, 2017

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Pc bleeps four times then repeats pc wont switch on


May be the PSU? Unplug and Reseat the Memory Mods. Look for a in-line fuse on the Motherboard, also replace the CMOS battery. Reboot .Your friend did unplug the machine and use ESD protection before working on it? Post results.

Jan 28, 2013 | HP xw6400 Workstation - 2 x Intel Xeon...

1 Answer

Can I connect two different nvidia graphics with SLI ?


No

They use two different GPU's.

The Nvidia Quadro FX 3700 uses the Nvidia G92 Graphics Processing Unit, (graphics chipset),

http://en.wikipedia.org/wiki/Comparison_of_Nvidia_graphics_processing_units#Quadro

(Scroll down)

,and the Nvidia GeForce GTX7900 uses the Nvidia G71 G.P.U.

http://en.wikipedia.org/wiki/Comparison_of_Nvidia_graphics_processing_units#GeForce_7_.287xxx.29_series

(Scroll down)

You need two LIKE graphics cards to use Scalable Link Interface,

http://en.wikipedia.org/wiki/Scalable_Link_Interface

Scroll down, read under the bold black subheading - Caveats



Nov 22, 2012 | HP xw6400 Workstation - 2 x Intel Xeon...

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My HP Workstation XW6400 Restarts it self !!


If the PSU power supply units fan is not working the PSU is faulty

http://pcsupport.about.com/od/toolsofthetrade/f/powersupplytest.htm


Test all power and data leads that attach to your hard drive IDE,SATA
the leads from your MOTHERBOARD TO YOUR HARD DRIVE make sure they have secure dust free connections and are not faulty or just replace them they could be faulty

motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail


make sure all leads that are attached to your drives dvd\cd floppy have secure dust free connections and are not faulty or just replace them they could be faulty a computer needs



power and data to travel through every working device and to continue its cycle and have an end so any faulty leads will end up with a computer error



even something as small as a faulty power lead or fan lead can cause you problems

computers need all of the data and electrical current to travel through every working device and to have an end to be able work properly



make sure ram modules and cmos batteries have dust free secure seatings and cmos battery has charge some motherboards cmos batteries are soldered in



you might not have enough computer ram

not having enough computer ram will run your computer over its limits putting to much strain on the CPU central processing unit and can cause memory dumps



you might have to many programs trying to or accessing the internet at the same time
scroll to bottom toolbar (bottom of screen) right click select task manager

applications you will see whats running
if you see anything you dont need running select end now and you might uninstall that specific

program if you or computer does not require it to run and
some unnecessary programs that could be jamming up your computer

also under processes see what is ticking over in the background again if you see something you
dont need to be and users you will see who is using your computer

you might need to add more computer ram
if you're not sure if a module is right for your system use the

Crucial Memory Advisor tool for a list of guaranteed compatible modules. first you will need to select the manufacturer from a drop down list then select your product line

from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system
you should always ask for a guarantee on the compatibility of the ram before making any purchase



might be getting hot

check you CPU make sure its securely seated and has thermal grease

http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-February-2012/1490


hope this helps

Oct 11, 2012 | HP xw6400 Workstation - 2 x Intel Xeon...

1 Answer

Monitors will not turn on due to a power spike. Tower makes a beeping noise with a red blinking light. What could be the problem?


The moitors did not turn on at all after the power spike?
If that is the case, probably some electronic components were burned due to power surge damage.
I advise you to contact the manufacturer for repair and your local electricity supplier.
The beeping noise and the red blinking could be indication that no monitor is plugged in.

Jul 06, 2011 | HP xw6400 Workstation - 2 x Intel Xeon...

2 Answers

HP XW6400 CPU fan connector is 5 pn, which is uncommon. Can you describe the on board pin assignments with the connector tab on the right. A picture or diagram would be very helpful


If you take a closer look to that connector you will see that there is a short piece of cable running from pin 1 to 5. So if you have a four pin connector all you have to do is replicate the connection and you are done.

May 21, 2011 | HP HEATSINK FOR WORKSTATION XW8400 XW6400...

1 Answer

HP Workstation xw6400 hang every 10 to 15 min.


Check for any virus. Check disk manager for any hard disk manager. if disk is ok  replace your memory with a new one

Apr 09, 2009 | Microsoft Windows XP Professional for PC

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