Question about HP Compaq dc7600 Convertible Minitower PC Desktop

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I have 5 gigs of ddr2 ram installed its shows i have 3.5 gigs is there a jumper i can change so it reads the other ram ?if i look in dxdiag it shows the full 5 gigs system information its shows 5 gigs available ,, useable 3.5,, pin jumpers ,software, anything i can do to get it to read atleast 4 gigs of the 5 for the mobo. and what is the max cpu i can upgrade the pentium d in this to ?

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3 year old posts now floated to the top of fixya. mr HONG.
all these answer to that question is on your HP support pages.
ever word, is there, if you can read. ever go to HP? actual?
there are 1million posts online at all forums puter, answer this...
no lack of answers, but here is MINE.

XP 32bit can not use over 4GB RAM. 4.3GB max. decimal)
Ti-30Xa (hand calc)
(press calc. keys 2 to the nth power of 32.(my calc, shows 4,294,967,296. that is all 32bit OS can do,. period. (minus 1) bytes, (x8 is bits) (this is a OS limit not HARDWARE)
64bit addressing is 2^64 (say 2 to the 64th power)

and will be less ,if the motherboard (100s there are) has onboard video, it steals mAIN RAM, so is less, but if not onboard video but is card (PCI express?>) opo cards for sure.
better cards all have there own, RAM called RAM DAC chips.
the Dont steal RAM these cards, so main is not reduced.
Motherboard (system board) - Features the 945G Express chipset with Integrated Intel Graphics Media Accelerator 950"
or is shut off and Express card inserted.
like this options day1, sold
ATI Radeon X300 PCI-Express graphics board(has own ram)

Your BIOS tells you the quantity of ram, look there first.?
on my PC the ESC key calls up BIOS then F1 is the INFO page.
or F10 on other OLDER HP PC, does same, do so now.

A true 64bit PC (some are NOT) can run W7 64bit.
Mine all run w10, 64bit, and all are CORE 2 processors or larger.
and will run all versions of windows, 10 and linux 64B.
5GB , WHY?
and using 5GB is so wrong, tell me it's not balanced.
2 g
so you have that< why do that? it must be balanced in pairs for 64bit usage.(DUAL CHANNEL RULES GOOGLE THAT)
the service manual in this PC is clear, read that yet?, how to fit RAM correctly? in pairs for max speed from the processor
and the BIOS will run the PC on the slowest ram not the fastest.

the bad news is HP only supports 64bit on XP (ON THIS 1 PC)

but XP is dead, at Microsoft. they shut down the PnP severs.
so getting XP to run right TODAY , fresh installed is big pain.!!!

your other choice is to buy w7, 64bit at
then down load the ISO and burn an install USB stick
boot the stick and installed this OS. THIS WAY.

tHIS CAN WORK REALLY WELL., but my guess many features will be dead.
for sure all XP HP drivers are useless, and all HP XP apps no good. now.
but the OS may run OK, and you can spend days getting each missing driver, the w7,, PnP servers dont support. (ASK FOR HELP)
1 AT A TIME. lots of work, i can help you here, i do this all the time.
see here, see the steps using the chip sniffer.
see the sniffer,?

Posted on Oct 05, 2017

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No OS stated, xp, w7,w8.w10>? what?
32 bit is no 64bit
in CP,control panel
click system
see system type, 32/.64

go into BIOS
see installed RAM
run RAM test there?

not only that,the DRAMS need to installed in the slots using
rules stated in the HP manual
in pairs for 64bit and same size. (exact same is best)
you can not just throw them in.
depends on the processor,, MMI brains rules

Posted on Feb 21, 2017

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I do not think you have a hardware problem, I think you have a software problem. Since you are talking about a Pentium D and DDR2 memory, this is an older system . I bet you are running Windows XP. Windows XP is a 32 bit operating system, it is only capable of addressing a maximum of 4Gb. This includes everything not just the RAM, so if your video card has 512 Mb of onboard memory, it is included in the total. The fact that the system sees 5 Gb means the hardware is capable of supporting that much RAM. The only way you are going to be able to use all your RAM is to install a 64 bit OS.

Posted on Feb 19, 2017

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Http:// Go to this page and make sure you have matched pairs of memory preferably all the same size and speed.

Posted on Oct 19, 2016

  • Anonymous Oct 05, 2017

    not one tells his./her OS. not one.
    PENTIUM D? (lots of versions) 960 last.
    the last on, make Q2-2006 run.
    may not like your bridge chips inside.,

    i'll read to you now.
    The last generation of Pentium D branded processors
    in all cases, the processor must match i'ts glue chip set, that HP does not tell you, this (mobo chip sets). (aka, north and south bridge chips)
    no does HP publish the full set of processors supported, only what THEY SUPPORT AT HP.

    I must scan it with my sniffer to find truth here. (acutal chip #'s)
    that must match up, and the HP BIOS must allow it, so is a HP direct question that.
    we are not HP and can not tell you what their bios can and can not do ever.
    nobody but HP can, do that.

    read this. (see complexity here, sure)

  • Anonymous Oct 05, 2017

    in windows 10 the upper limit is (64b)
    2 Terabytes, 2,000GB. that is.
    1.8 ^19 decimal (power) 2^64...

    ms has a page for that, it's not hidden


6 Suggested Answers

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
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The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

SOURCE: Computer will not boot to desktop

i) u said that your computer is going to safe mode menu, if it is really goes to safe mode, then try to click the safe mode option and see whether ur able to go onto the screen or desktop


   let us even reseting jumper that ur agent or customer rep told, if you can dismantle your computer on your motherboard u will have CMOSbattery(which is slilver , circualar, i think u knowit) , just remove it by screw driver gently and waitfor few 5 minutes and replace and close the tower....... and there is no need of resetting your jumper after doing(removing CMOS battery)


ii) if you are unable to go the desktop by clicking safemode, then there defenitely a problem with your OS or operating sytem 

 i would suggest u reload your OS or format ursystem or reload Windows XP or Windows Vista Freshly
 by tapping F11(incase of Vista) or F10(in case of XP) continously from the moment u power on ur system 
here we are trying to bring ur system back to your factory settings(getting the system back to day u got ur system)

but there is problem that u will loose all the data that is present on system(risk at ur own will), i.e., what every that is present in My Documents.....

 when you do this recovery(by pressing F11 or F10) you will get an option to peform NDR and DR in order to save datain my documents(NDR: non destructive recovery, DR  : Destructive Recovery...)
select NDR to save data in my documents.... only in case of XP 

Thanking you

M. Sridhar

Posted on Dec 31, 2008

  • 1066 Answers

SOURCE: +12V DC Line voltage reading from PC burn-in test is low

if you really had that drastic of an issue, then the computer would not boot. this is some kind of mis-read.

Posted on Mar 22, 2009

  • 123 Answers

SOURCE: Motherboard ID Motherboard Name Compaq Evo

looks like it will support any 478 socket cpu up to a 3.2 Ghz

Posted on Jul 31, 2009

  • 132 Answers

SOURCE: pentium 4 upgrade


The Compaq Presario SR2011WM supports following processors:


  • Socket: 775
  • Supports the following processors:
    • Pentium D 900 series Dual Core (Pressler, 65nm)
    • Pentium D 800 series Dual Core (Smithfield, 90nm)
    • Pentium 4 601 series (Cedar Mill, 65nm)
    • Pentium 4 600 series (Prescott, 90nm)
    • Pentium 4 500 and 501 series (Prescott, 90nm)
    • Celeron D series (Prescott, 90nm)
Hope it helped.

Posted on Nov 19, 2009

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2 Answers

What's your problem?bit ix38 quad gt motherboard with 2 gig of ddr2 ram i want to add a 1 gig stick of more ram that ive bought how do i do this? thanks windows seven

Top view of motherboard, scroll down. (Thought you might also like to read the reviews, and Comments)

Motherboard User Manual,

1) On the motherboard the Blue ram memory slot that is closest to the copper heatsink, is ram memory Slot 1.
Also known as DIMM 1.

Ram memory ALWAYS has to be in this ram memory slot.
The Processor reads ram memory Slot 1 first.

2) The Blue ram memory slots are Slot 1 (DIMM 1), and Slot 3.
(DIMM 3)
The Black ram memory slots are Slot 2 (DIMM 2), and Slot 4.
(DIMM 4)

To run Dual Channel ram memory, means there are two LIKE ram memory modules ('Stick'), and they are installed in the SAME channel.

This would mean to alike ram memory modules, in both Blue ram memory slots, or both Black ram memory slots.

Since the ram memory modules need to be alike, they are generally purchased from the same manufacturer, and are the same kind.

Running ram memory in a dual channel configuration, is supposed to increase ram memory 'speed', up to 30 percent.

This is Baloney!
May look good on paper, but in actual use in the field it's cr@p.
Actual performance increase is more like 1 to 2 percent.
This has been proven by Tom's Hardware, and many, many motherboards, ram memory, Processors, etc.

So you have 2GB of DDR2 Sdram, huh?
Is it just one 'stick' of ram memory, or are you referring to two 1GB sticks?

If the above holds true install them in Slot 1 and Slot 3.

If not, and it is a 2GB stick of ram memory, be sure it is installed in Slot 1 (DIMM 1)
Install the 1GB stick in Slot 2.

It isn't the same as the 2GB stick.
It is 1GB.
Does NOT go in a dual channel configuration.

(Catching all this? There is NO dual channel ram memory!

It is ram memory that is -> ALIKE, and used in a -> dual channel configuration.
Used in two separate ram memory slots, that support the dual channel configuration.

Sold with the advertising scheme of 'Dual Channel', but really just means the two ram memory modules, (Or four), are -> alike.

1) Same Voltage used
2) Same Ram Timings
3) Same Chip Configuration
4) Same size in amount
5) Same frequency rate ('Speed')

With ram memory in a dual channel configuration, the ram memory modules team up on the task.)

For additional questions please post in a Comment.


Oct 31, 2012 | Computers & Internet

1 Answer

Ram compatibilty

Yes you can but the higher spec DDR2/800 RAM will run at at lower speed same as the DDR2/ 667 RAM.
When you install the DDR2/800 RAM and the BIOS only detects 1Gb of RAM then this RAM is not compatible with the 1st RAM module. In this case use RAM module that is the same make and speed as the original RAM module.

May 03, 2012 | Computers & Internet

2 Answers

Intalled 2 - 2 gig Ram bios is only reading 3.

I believe the ram needs to be on seperate channels to work.

Giving you a link to a supprot manual.

Good luck.

Jan 13, 2010 | Computers & Internet

1 Answer

Can't install operating system

Did you tried removing rams. Try putting a single ram and proceed with the installation and this way you will identify which ram is not functional...

Aug 30, 2009 | EliteGroup 945P-A (945PA11) Motherboard

1 Answer

Memory not being detected while in Windows

If you are running a 32bit OPERATING SYSTEM it won't recognize but I gig.Only if you install a 64bit OS will it see the 2 gigs of ram.Thats why it shows up in the BIOS and not in your OS.If you do have a 64bit OS already then your OS should read the 2gigs.

Aug 06, 2009 | HP Pavilion dv6235us (RP298UA#ABA) PC...

1 Answer

I need to change my ram on my lenovo sl400 laptop

Go for a DDR2 Ram. That will suit your configuration.

2GB DDR2 Ram will cost your around Rs.1700

Mar 21, 2009 | Lenovo ThinkPad SL400 Notebook

1 Answer

One of the ram isnt recognised???

This is likely a memory timing incompatibility. You can go into the BIOS settings of many motherboards and set the timing specifically for each RAM slot, but without knowing exactly which piece of RAM you have I can't tell you what to set it at. You could use the utility CPU Z, install one stick, run the utility and write down all the memory information, then install the other stick and write it down too. Then go into your BIOS and see if you can set all of your specifications to match the memory.

Of course if you could find someone to swap sticks with that would be easier. Some motherboards are more picky than others about which sticks they work well with, name brand manufacturers are more picky than aftermarket in general.

Dec 30, 2008 | Computers & Internet

5 Answers

4gigs ram

Switch sticks around in various combinations (2 gig in slot one, 1 gig in slot two, switch, try other stick, etc) and see if it is the memory or the motherboard.

Sep 10, 2008 | ASUS P5VD2-VM SE - Motherboard - micro ATX...

2 Answers

DDR2 533Mhz 2 x 1GB

the DDR IS THE RAM , the processor and the ram and a good motherboard work and produce a beep,
remove the processor and the ram, get other working processor and the ram and try on your system, it works troubleshoot the removed processor and ram to find out the bad one and it does not work, your motherboard is dead.


Feb 12, 2008 | EliteGroup P4M800PRO-M Motherboard

3 Answers

Ram upgrade

In order to see how many MHz is your desktop, please right click on your "My computer" icon and select "Properties" from the menu.
It will open the system properties window. select the tab "general" and you will see how many MHz is your desktop.

If you have found this solution helpful please rate it as "solved", otherwise please ask here again.

Thank you :)

Oct 12, 2007 | Computers & Internet

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