Comments on UltraMobileGeek by ThoughtFix: Homebrew SSD UMPC: The Test

Infinitely waiting at the welcome screen is typica...

2009-03-19T08:10:09.095-07:00

Infinitely waiting at the welcome screen is typical behavior for windows when installed on removable media (many CFs are). You can break out of it with CTRL-ALT-DEL, then disable virtual memory and Windows will boot fine next time.

www.dusko-lolic.from.hr

Hi, a few remarks:First, using a CF or HDD as a sl...

2008-01-12T12:13:55.875-08:00

Hi, a few remarks:
First, using a CF or HDD as a slave IDE (second port

of your adapter) on a laptop won't work most of the

time due to very limited bios expecting a cd/dvd

reader on the second slot.

Second, 120X CF is just to slow. You need at least

260X to get a fast disk (42mb/s).

Thirst, most CF are marked as removable disk, and <

That card he used probably maxed out at PIO 4. Act...

2007-10-02T18:31:35.897-07:00

That card he used probably maxed out at PIO 4. Actually, even today there are only a handful of CF cards that enter into the UDMA doman. And, those cards, such as the SanDisk Extreme IV have achieved 40MB/sec transfers. However, one does not use a CF card as HDD unless they are intending to save battery life. Thats what I was interested about. An 8% gain is not worth the cost of a CF card over a

I buy some CF Card,IDE-CF,SATA-CF adapter from a ...

2007-09-09T23:27:51.312-07:00

I buy some CF Card,IDE-CF,SATA-CF adapter from a china factory , and find it good quality and lower price,so i want share with others my feels.Especially,the IDE-CF only 1.98USD,and SATA TO CF,the same like addonice,but the price just need 9.9USD
Websit: http：//www.soarland.com

Not really, it proves that a good CF card isn't th...

2007-04-26T04:39:15.675-07:00

Not really, it proves that a good CF card isn't the limiting factor here. That's down to the adapter being used, probably because it's not doing DMA...

Sandisk Extreme user - you're not using this ide a...

2007-04-26T03:05:46.402-07:00

Sandisk Extreme user - you're not using this ide adaptor or a similar one to test your sandisk extreme cf card so your comment is totally irrelavant.

good card benchmark sitehttp://www.hjreggel.net/ca...

2007-04-17T00:56:39.828-07:00

good card benchmark site
http://www.hjreggel.net/cardspeed/index.html
they have numbers for DMA capable CF cards too

I think the slow speed has to do with your choice ...

2007-04-16T16:13:18.984-07:00

I think the slow speed has to do with your choice of CompactFlash card and the adaptor.

With a Sandisk Extreme IV and the Sandisk Extreme Firewire reader, this user achieved speeds of 38 MB/sec, significantly faster than the hard disk:

http://www.robgalbraith.com/bins/multi_page.asp?cid=6007-8462

Very interesting. I thought that to use this adapt...

2007-04-16T05:32:23.465-07:00

Very interesting. I thought that to use this adapter you need to exactly cards and then the adapter would trick the OS to think that it´s using just one Card.

That´s the way SSD works. You have multiple cards added into just one partition or drive.

also 100x card means 15MB/s, this may mean the car...

2007-04-16T04:59:39.909-07:00

also 100x card means 15MB/s, this may mean the card may not support DMA at all. There is nothing mentioned about DMA support on PQI site. On Transcend site it says DMA is supported (unless you buy the xxx-P model which means PIO).

I'm asking because PIO mode has theoretical limit ...

2007-04-16T04:49:49.685-07:00

I'm asking because PIO mode has theoretical limit of 16MB/s which look like your result numbers.

Did you have DMA enabled? Most older CF cards run ...

2007-04-16T04:47:29.428-07:00

Did you have DMA enabled? Most older CF cards run in PIO mode which is slow and CPU intensive. Did you test speed of other cards too? I wonder what speed can the transcend 120x one do with DMA enabled (preferably the 8GB one).