HP 500 motherboard 4385200-001 problem

November 16, 2010 at 15:58:53
Specs: Windows XP, 2MHz
I replaced a new motherboard onto my HP 500 laptop, everything went through well until I turned power on it freezed on logo startup, shown "F10=ROM setup" and didn't let me into BIOS. I did remove hard drive and turned power on, this time went through well and was able to get into BIOS. Then I took hard drive plugged into another laptop via USB box, deleted all partition then installed it back to my HP 500 laptop, turned power on it hung again. I was thinking this is some kind of conflict between new motherboard and hard drive. Does anyone ever have this problem before? Could anyone give me direction to solve this problem please. Please help.

Sorry for bad English, tried my best

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November 16, 2010 at 18:03:46
You can use a free online translator to translate your language to English. .

E.g. http://translate.google.com

If you tell us what language you can read the best, I can translate English to your language.

What country are you in?

"HP 500 Laptop"

That is not specific enough.

Go here:


Look at the label picture.

Tell us what the p/n number is, before #

"Then I took hard drive plugged into another laptop via USB box, deleted all partition then installed it back to my HP 500 laptop, turned power on it hung again...."

The hard drive is not bootable if it has no data on it .

"I was thinking this is some kind of conflict between new motherboard and hard drive."

That's not likely.

Why did you replace the motherboard ?

What problems were you having with the previous one ?

How do you know the replacement motherboard is okay ?

Can two hard drives be installed on this computer ?

motherboard: 4385200-001

Searched HP parts - nothing found.

Most HP part numbers have 9 characters

tried 438520-001

"Motherboard (system board) - 910GML, for models with wireless LAN"

It's used in the HP 500 Notebook PC series

HP 500 Notebook PC
30 models
GE272AA, GE273AA, GE274AA, GE275AA, GF473AA, GF474AA, GF475AA, GF476AA, GF477AA, GG460AA, GH646AA, GJ585AA, RH739AV, RH740AV, RH741AV, RQ257AA, RQ257AAR, RQ258AA, RQ258AAR, RQ259AA, RQ260AA, RQ260AAR, RQ261AA, RQ262AA, RQ263AA, RW854AA, RW854AAR, RW855AA, RW856AA, RW857AA,

Searched the HP site using HP 500 Notebook PC
116 results

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November 16, 2010 at 20:06:54
HP 500 notebook PC, p/n: RW859AA#UUF

My old motherboard was completely blank screen, have tried everything but didn't work out so I decided to replace with the new system board purchased online product number is 438520-001. After new system board installed all works fine, it able to boot from CD ROM, USB (without hard drive plug in), allow to get into BIOS, when plug hard drive in it will freeze. I found someone posted on the web to solve this problem is delete all partition in hard drive then put it back but that doesn't help. I also did try to install win XP on hard drive via USB box it went through well at the start but will crash after it re-started. Don't know what's the problem is.

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November 17, 2010 at 20:07:04
Since you were able to delete the existing partitions on the same hard drive when it was in an external drive enclosure when it was connected to another computer, there's probably nothing wrong with the hard drive.

Is it the same hard drive you were using with the notebook before, or a different one ?

Motherboards DO NOT normally fail spontaneously, unless they have this problem...

Some mboards develop this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - the mboard manufacturer didn't know they were improperly made at the time the mboard was made.

Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .

This was the original bad capacitor problem - has some example pictures.
History of why the exploding capacitors and which mboard makers were affected:

What to look for, mboard symptoms, example pictures:
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.

Pictures of blown capacitors, other components, power supplies, Athlon cpu's, etc.:

If the original mboard does not have that problem....

Did you drop the notebook ?

Did you spill liquid on it ?

If a Windows XP installation is installed on the hard drive when the hard drive was on one computer, then you move the hard drive to another computer and try to load Windows from it, if the hardware on the two mboards is more than a little different, XP will often NOT load into Windows all the way - that's normal !!

However, that situation DOES NOT cause your boot sequence to freeze !
The hard drive still boots, you often see the first bit of Windows graphics, THEN Windows won't load any further, OR, Windows may load part way, e.g. to the Logon screen, but then the computer reboots, in an endless loop.

That can be fixed two ways.....

- the bonehead way - delete the partitions (you only need to delete the partition Windows was on) and install Windows from scratch . You DO NOT need to move the drive to another computer to do that - you can delete the partition(s) when you boot the same computer with the Windows CD, then run Setup. It's a bonehead way because you lose ALL of your personal data that was on the Windows partition originally, unless you copy the data you DO NOT want to lose to elsewhere BEFORE you run Setup.
E.g. even if you can't access Windows, you can boot the computer with certain Linux CDs and copy data.

- the smart way - do the Repair installation of Windows procedure - it's built into the Windows CD, and you will NOT lose the personal data that was already on the Windows partition.

Since the hard drive seems to work fine, then it's lot more likely your replacement mboard is faulty - e.g. it's hard drive connection - or there's something else wrong, than there is hard drive / mboard compatibility problem.

If the replacement mboard was used, then it's not a 100% sure thing it will work properly. If the seller has a limited time warranty, then you MAY need to send it back and get another one.

I used the computer's product number you provided - RW859AA - to search the HP site with - nothing.
I looked at the list of HP 500 Notebook PC models that use the mboard you installed - there is no RW859AA.
But there is a RW856AA. ( 6 instead of 9; see the list above)
I searched the HP site with RW856AA - nothing.
I searched the HP site with other product numbers in the list above - nothing.

Usually when I search the HP site with a product number, I get the right model, but not in this case.

Perhaps it's because I do not have the HP site set to YOUR country.
What is your country ?

I am guessing this is the service manual for your model series - the original ? HP 500 Notebook PC series (there are other ones).


Manual Oct 2006

(2006 - the bios on the computer recognizes any size of hard drive)

Index - computer setup access

possible mboards
910GML without wireless lan
910GML with WLAN
915GM with WLAN

" 438520-001"

"Motherboard (system board) - 910GML, for models with wireless LAN"

one ram slot (not the usual two)

PATA hard drive (EIDE, or IDE, not SATA or SATA II)
60 or 40 gb (that's awfully small for a 2006 computer)

USB floppy drive optional

appears to have only one hard drive (some notebooks have two)

remove and install the hard drive - pages 29 (34 of pdf), 30 (35 of pdf)

Possibilities ?

It might be possible to install the hard drive upside down.

If it's upside down, the computer cannot recognize it, and you could certainly get a freeze while booting when that's the case.
Connecting the hard drive upside down does not harm it.

If the ram has a poor connection in it's slot, you can have all sorts of weird problems.
MAKE SURE the ram is installed properly.

I'm assuming you are using the same mboard part number as the original one, and the same ram that was in the original mboard.
If that's not the case, the ram may not work properly in the replacement mboard !

Remove the AC adapter's connection AND the main battery when you fiddle with the ram or the hard drive or anything inside the case !

Other things?

If the bios Setup of the replacement mboard is set to use specific parameters (heads, cylinders, etc.) for the hard drive rather than the drive detection being set to Auto by the method Auto or LBA, or similar, you may have problems while booting when the hard drive is supposed to be detected which MAY freeze the boot.
Loading bios defaults in the bios Setup, and Saving settings, when the hard drive is NOT connected should cure that problem.

For that matter, loading bios defaults will fix many problems caused by improper bios settings.

New and fairly recent larger capacity notebook hard drives can be used on any notebook that has a bios that can recognize any size of hard drive, BUT older larger capacity notebook hard drives required a lot more current than lesser capacity hard drives, and in some cases, some notebooks cannot use them for that reason.

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