[coreboot] DFI Infinity NF570-M2/G motherboard
tiagomnm at gmail.com
Mon Oct 27 13:03:20 CET 2008
1MB = 1 million bytes
1Mb = 1Mbit = 1 million bits
1MiB (mebibyte) = 1.048.576 bytes, which is what most people call mega
byte(MB), but isn't.
1Mibit = 1 Mib = 1.048.576 bits
Usually when a chip is said to have 1MB it really has 1MiB, not less, and
8Mib, not 8Mb.
On Sun, Oct 26, 2008 at 3:37 PM, Chris Lingard <chris at stockwith.co.uk>wrote:
> Carl-Daniel Hailfinger wrote:
>> On 26.10.2008 15:39, Chris Lingard wrote:
>>> Corey Osgood wrote:
>>>> On Sat, Oct 25, 2008 at 11:13 AM, Chris Lingard <chris at stockwith.co.uk
>>>> <mailto:chris at stockwith.co.uk>> wrote:
>>>> The board comes with a ITE IT8716F 4MB chip; but that is compatible
>>>> with SST49LF040A chips. I already have these and some SST49LF080A
>>>> chips; just wish there were 160 or 320MB
>>>> I'm hoping that's a typo, SST49LF080 is 8Mb (that's 8 megabits, or 1
>>>> megabyte), larger chips would be 16 or 32Mb (2 or 4MB).
>>> Well if 040 is 4MB and 080 is 8MB, I would hope there is a 160 at 16MB
>>> and so on; or do engineers use a secret numbering system :-)
>> Secret numbering system.
>> 040 is 4 Mbit = 512 kByte
>> 080 is 8 Mbit = 1 MByte
>> 160 is 16 Mbit = 2 MByte
>> I used to do boot CDs pretending to be 2.8Mb floppies, and would be
>>> happy with a 4Mb chip to get a Linux kernel into.
>> No, these were 2.88 MByte floppies, not 2.88 Mbit floppies. Even the
>> SST49LF160 chip is smaller than that floppy.
> We use different terms
> To me a Mb is one million bytes
> And a MB is one million bits
> But we all agree in the end
> Chris Lingard
> coreboot mailing list: coreboot at coreboot.org
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