Optimus IV 17.3 Inch Laptop

K

KaranB

Member
Hey everyone i'm about to buy the optimus IV 17.3 inch laptop and i was hoping to only buy one hard drive and install a second one myself since the laptop is built with two slots for two hard drives as standard.

My question is, if i buy the laptop with only one hard drive will the secondary hard drive slot be functional or would PCS not fit and interfaces in its space since i didn't select to buy a second one?

Hope to here your answers thanks.
 
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K

KaranB

Member
5400rpm vs 7200rpm relating to RAM

Hey everyone i was just wondering if whether a 5400rpm drive would still be slower than a 7200rpm drive even if i had 12gb of RAM to process data.

Because both drives have a SATA transfer rate of 3GB/s so would my computer RAM affect the rate?
 
Pagey

Pagey

Bright Spark
Both are fully functional. I ordered mine with just a boot SSD and added the second one later.

Drive speeds are an indication of how fast they can access data from the platter, so the faster the RPM, the faster they can access data. Even though they are connected to the computer using the same protocol, they are still limited to how fast the hardware can access the data.
 
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ubuysa

ubuysa

The BSOD Doctor
KaranB said:
Hey everyone i was just wondering if whether a 5400rpm drive would still be slower than a 7200rpm drive even if i had 12gb of RAM to process data.

Because both drives have a SATA transfer rate of 3GB/s so would my computer RAM affect the rate?
Click to expand...

The amount of installed RAM has no effect on how fast you can get data off a hard disk.

The rotational speed affects something called disk latency which is how long you have to wait for the data you want on the disk surface to rotate under the read/write heads. For a 5400rpm disk average latency is 5.56mS, for a 7200rpm disk it's 4.16mS. In addition rotational speed is a factor in how fast the data can be physically read from the disk surface, a typical 7200rpm disk can transfer data significantly faster than a 5400rpm disk.

7200rpm disks under normal day-to-day use are noticeably faster than 5400rpm disks. Since the main limiting factor in PC performance is hard disk access time it makes sense to go for a 7200rpm disk if you can.
 
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