How to upgrade memory

There are 4 RAM slots. 2 are taken and 2 are free. To upgrade to the maximum amount of RAM you need to place 2 sticks of 4 GB on the free slots.
DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •

If you have difficulty doing it and you find yourself in London you can visit us https://www.computerbeing.co.uk/

this unit can be upgraded to SD/MMC Card Slot (Supports Max. 32GB).

provided a link for your refrence.
Refurbished Craig CLP281 Black 800 MHz 7 256MB DDR3 Memory 4 GB Built in...

you cant do that. memory is always in PAIRS. The sockets are Colour Coded for each PAIR. two blue two black. the largest may need to be 1st Pair. suggestion: take all 4 out. put 2 largest back in as 1st pair see if pc is ok. then add 2nd pair. see if ok. https://support.hp.com/gb-en/document/c02014355 https://support.hp.com/lamerica_nsc_carib-en/product/HP-Pavilion-p6000-Desktop-PC-series/4079858/model/4123110/document/c01989040 https://www.mrmemory.co.uk/memory-ram-upgrades/hp/pavilion-desktop/p6324uk?search=hp+p6324uk

see:http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?sp4ts.oid=5295969&spf_p.tpst=kbDocDisplay&spf_p.prp_kbDocDisplay=wsrp-navigationalState%3DdocId%253Demr_na-c03536888-9%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken

probably no, 32 bit systems have an under 4Gb limit. looks like 2 memory slots 1,2,4 and 8Gb supported.

Memory upgrade information

• Dual channel memory architecture
  
• Two 240-pin DDR3 DIMM sockets
  
• Supports DDR3 DIMMs
  
  • PC3-10600 (1333 MHz)
    
  • PC3-12800 (1600 MHz)
    
• Non-ECC memory only, unbuffered
  
• Supports 1 GB, 2 GB, 4 GB and 8 GB DIMMs
  
• Supports up to 4 GB on 32-bit* systems
  
• Supports up to 16 GB on 64-bit systems
  

https://support.hp.com/us-en/document/c02222922

is the coin cell , 3v? or 2v , 2.9v and up is good, lower not.

the memory rules on all PCs is complex , just because it fits means nothing.
2010 PC DT
windows 7 32bit?

do all PSU voltages read correct with a voltmeter?
they must be in spec,.
memory
240pin DDR3 DIMM 800MHz Memory
low density only maybe a limit here.
so you want 8GB up
2GB per slot.
there are 3 kinds on voltage alone, low, high and both
then speed,
sure forum factor DDR3 240s
but there are density limits and socket max limits and system max limits
if running windows 7, 32bit its limited to 3.5? GB.
so 8 is a waste there.
if running windows 7, 64bit then it can use full memory.
if the bios allows it
and the Processor MMC chip allows it.
see? there are complex limits on all PCs.
in this case AMD processor.
Athlon II X4
limits on this mobo are.
HP spec page

Supports 1 GB, 2 GB, and 4 GB DDR3 DIMMs per socket

• Supports Dual channel memory architecture
• Supported speeds
  • PC3-10600 @ 1333 MHz*
  • PC3-8500 @ 1066 MHz *DDR3-1333 modules run at 1066 MHz if three or more modules are installed.
    
• Non-ECC memory only, unbuffered
• Supports up to 16 GB on 64-bit PCs (DIMMs run at DDR3-1066)
• Supports up to 4 GB* on 32-bit PCs

so what memory did you buy, and from whom.
name make model numbers exactly.

I think its coin Cell bad
or PSU bad , not memory.
if one stick fails its not that stick if
you now are buried in sticks, if all sticks fail in just slot
its not memory prob. its power.
for sure all original stick fail as one.

As i know netbook only have 1 DIMM slot, that mean you can't install another module on that netbook, but you can replace the current module (1 GB) with your 2 GB module.

Mouseover to zoom or click to enlarge Lenovo DDR3 2 GB SDRAM (41U5252) $57.00 1 store

• Technology: SDRAM
• Form Factor: DIMM 240-pin
• Capacity: 2 GB
• Modules Qty: 1
• Bus Clock: 1066 MHz

Lenovo 1GB DDR3-1066 Memory Module for Notebooks

Improve overall performance of ThinkPad systems by upgrading with additional memory. PC3-8500 DDR3-1066 low-halogen SODIMM memory offers maximum data transfer rates up to 1066MB/sec(1) to help you increased performance of memory intensive applications such as streaming video, graphics and CAD programs. Adding more system memory is one of the least expensive ways to help boost overall notebook system performance and allows more multitasking which saves time and hassle.

You may have tried to put too much memory (RAM) onto it.
That models maximum spec is:
Memory upgrade information:

• Four DDR3 DIMM (240-pin) sockets
  
• Supports 1 GB, 2 GB, and 4 GB DDR3 DIMMs per socket
  
• Supports Dual channel memory architecture
  
• Supported speeds
  
  • PC3-10600 @ 1333 MHz*
    
  • PC3-8500 @ 1066 MHz
    *DDR3-1333 modules run at 1066 MHz if three or more modules are installed.
    
• Non-ECC memory only, unbuffered
  
• Supports up to 16 GB on 64-bit PCs (DIMMs run at DDR3-1066)
  
• Supports up to 4 GB on 32-bit PCs
  

You can find the specs and troubleshooting help files here

Manufacturer Part: 55Y3706

2 GB (installed) / 4 GB (max) - DDR3 SDRAM - 1066 MHz - PC3-8500 ( 1 x 2 GB )

So you need DDR3 SDRAM at 1066Nhz PC3-8500

If you are running 64bit Software then upgrade to 8GB (2 X 4GB sticks) otherwise your OS may not recognise any more that 2 MB

LenovoMemory - 1 GB - SO DIMM 204-pin - DDR3 - 1066 MHz / PC3-8500 - 1.5 V - unbuffered - non-ECC Manufacturer Part: 55Y3706

The best way to know what you need is to search for it on the web type in "Thenameofyourcomuter""specs"

if your comptuer is the Lenovo ThinkPad R400 notebook
then your specs are


RAM Configuration Features 1 x 2 GB Memory Specification Compliance PC3-8500 Technology DDR3 SDRAM - 1066 MHz Installed Size 2 GB / 4 GB (max) Form Factor SO DIMM 204-pin
Witch means its only upgradable to 2 gigs.

to see what is in thier now start your computer up, Go to my computer, right click on it and go to properties. Under that it will show information about your comptuer.