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New solid state in an old machine? - Page 2

post #11 of 13
Quote:
Originally Posted by WOD35 View Post

^lol a defect really? or do you mean by default?

I was never aware of the differences in partition offset. I just dd whole drives from SSD to HDD and vise versa without even thinking about partition alignment. I noticed Windows 7 has to rearrange itself the first time I boot it up after doing that, so maybe it's realigning itself. Are you supposed to partition new drives with the correct offset first, if going to a different type of drive, and clone partitions instead of whole drives? Only clone whole disk to disk when it's the same type or model?

I'd say the XP default alignment, when used with SSDs, is a defect, a default defect... rolleyes.gif

Intel even supplies an alignment fixing tool for their SSDs when used with XP. SSDs must have their partition alignment value divisible evenly by four, or every write the SSDs does will be done twice, as it struggles to get the alignment correct.

Windows 7 and 8 will align partitions correctly for SSDs automatically, so it's possible it fixed an incorrect partition alignment that was done in advance.

A SATA II interface on the board is not a problem for a SATA III SSD. More important is if the board supports AHCI, which is important for best performance from a SSD. If no AHCI option, use RAID mode and the latest IRST driver supported by the SATA chipset, assuming it supports RAID. RAID mode will provide all the features of AHCI, but this depends on the SATA chipset, hopefully an ICH8R or ICH8DO.

IDE mode will work with a SSD fine, but not at its best. You may have issues finding drivers for that board if using Windows 8.
post #12 of 13
Quote:
Originally Posted by parsec View Post

... SSDs must have their partition alignment value divisible evenly by four ...

I'd better say the partition starting offset value must be divisible evenly by 4096.


Example of WXP by default defect alignment:

32256 / 4096 = 7.875 => MEEEEC! thumbsdownsmileyanim.gif



Example of Se7en by default correct alignment:



1,048,576 / 4096 = 256 thumb.gif

105,906,176 / 4096 = 25856 thumb.gif
HAL-9011
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HAL-9011
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post #13 of 13
You can both laugh in derision at people who still boot off of mechanical hard drives. So 2012.

I put an ssd in an single core cheapo laptop I got a few years ago and it booted faster than my I7 with a WD Black, easily. It makes up for the lack of power but the single core still eats it when you run more than 1 heavy task.
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