HELP PLEASE: Can I replace my 2x512 PC-4300(533MHz) with 2x1024 PC-4200 or PC-5300 RAM??

My Toshiba laptop, A100-172(PSAA8C-17202C) says that I have PC-4300 ram. But I find that PC-4300 ram are a lot more rare and more expensive than PC-4200 ram. Both rams run at 533MHz dual-channeled

Toshiba is try to scam me $340 for a stick of 1GB Kingston ram. http://www.toshiba.ca/web/product.grp?lg=en&section=1&group=2&product=1790 or $110 for a different model of Kingston ram http://www.toshiba.ca/web/product.grp?lg=en&section=1&group=2&product=6031

My questions:
What is the difference between PC-4300 and PC-4200 or is Toshiba trying to scam me?
And will I see a difference between them if I put PC-4200 instead of PC-4300 in my laptop?
Will most brand name ram manufacturers work in my laptop?
Will I be able to put PC-5300 CL5 ram in my laptop and what will be the performance difference?

Will I be able to use this Kingston ram in my laptop? http://www.shoprbc.com/ca/shop/product_details.php?pid=10199
Or will it be better to buy the ram from Toshiba website or through a configuration like on the Crucial or Kingston website?


RAM SPECIFICATIONS
SISOFTWARE SANDRA
Manufacturer : Hyundai Electronics
Model : HYMP564S64BP6-C4
Serial Number : 04004089
Type : 512MB DDR2-SDRAM SO-DIMM
Technology : 8x(32Mx16)
Speed : PC2-4300U DDR2-267
Standard Timings : 4.0-4-4-12 (tCL-tRCD-tRP-tRAS)
Version : 1.2
Date of Manufacture : May 6, 2007
Memory DC Line : 1.8V
Set Timing @ 267MHz : 5.0-4-4-12 (tCL-tRCD-tRP-tRAS)
Set Timing @ 267MHz : 4.0-4-4-12 (tCL-tRCD-tRP-tRAS)
Set Timing @ 200MHz : 3.0-3-3-9 (tCL-tRCD-tRP-tRAS)

CPUID PC WIZARD 2007
Manufacturer : Hyundai Electronics
Part Number : HYMP564S64BP6-C4
Serial Number : 04004089
Type : DDR2-SDRAM PC2-4300 (266 MHz)
Format : SO-DIMM (67.6 x 3)
Size : 512 MB (2 ranks, 4 banks)
Module Buffered : No
Module Registered : No
Module EPP : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 0
Refresh : Reduced (.5x)7.8 µs
Voltage : SSTL 1.8v
Prefetch Buffer : 4-bit
Manufacture : Week 71 of 2006
Supported Frequencies : 200 MHz, 266 MHz, 266 MHz
CAS Latency (tCL) : 3 clocks @200 MHz, 4 clocks @266 MHz, 5 clocks @266 MHz
RAS to CAS (tRCD) : 3 clocks @200 MHz, 4 clocks @266 MHz, 4 clocks @266 MHz
RAS Precharge (tRP) : 3 clocks @200 MHz, 4 clocks @266 MHz, 4 clocks @266 MHz
Cycle Time (tRAS) : 9 clocks @200 MHz, 12 clocks @266 MHz, 12 clocks @266 MHz
Min TRC : 12 clocks @200 MHz, 16 clocks @266 MHz, 16 clocks @266 MHz

Thanks,
Allan


Sorry about all the questions, just want to make sure it works in my laptop, I don't want to pay the 15% restocking fee

 

as long as you have ddr2 memory that is 667 or 533 mhz and 200 pin (laptop memory), you are good to go.

 

Any brand of ram will work, as long as it's DDR2, 200 pin sodimm. Stay with the more reputable brands, some are listed below:

kingston
crucial
corsair
patriot
ocz

 

Check out this thread for some of the hottest RAM deals available, you might find something juicy!

http://forum.notebookreview.com/showthread.php?t=121363

 

There is no difference between pc2-4200 and pc2-4300 ram they are the same thing. 533mhz x 8 = 4264 some manufacturers round that up to 4300 and some round down to 4200 so as you can see there is no difference between those ratings. And as ejl said to you as long as you have DDR2 533 or 667 200 pin sodimm modules (from preferably one of the major manufacturers crucial, kingston, corsair, patriot etc) then you are good to go...

Forget buying memory from Toshiba, have a look at the hot ram deals thread for great deals on ram from various vendors.