Date: Fri, 26 Sep 2003 01:29:08 +0000 From: "Matt Hanson" <[EMAIL PROTECTED]> Subject: Hitachi 5200 overheat L70? 40GB 2.5" HDDs for MP3 use
I posted this to the list the other day... but it never showed up, and my access to the list has failed from my main Hotmail account:
----------------------------------
David... If you don't mind, I'll cross post this to the Lib list, as the list's new member Grabbit97/SAM seems to have some interest in new HDDs.
From: David Chien <[EMAIL PROTECTED]> To: Matthew Hanson <[EMAIL PROTECTED]> Subject: Re: Hitachi 5200 overheat L70? Date: Tue, 23 Sep 2003 23:32:54 -0700 (PDT)
Based on specs, they're a little hotter in terms of power draw, but otherwise,
pretty close (within 1/2 watt or so) vs. the originals.
I'd say that if you're running it at 100% for long periods of time, there might
be a problem, but otherwise, you should be okay.
In any case, my Hitachi 20GB 4200rpm HD runs okay - the bottom of my L110 gets
hot enough to make you want to put it on a cold hard surface instead of in the
Do you think your HDD would hotter in a L70?
lap after a few hours of use, but otherwise, okay. never has crashed once during the two or three years it's been in the L110.
I'm loosing track of the various models from Hitachi, IBM, and Toshiba I've been looking at, and which model Hitachi you have. Is yours the DK23DA-20F? Data sheet:
http://ssddom01.hgst.com/tech/techlib.nsf/techdocs/1180513771E39D5786256C520068754D/$file/dk23da_ds.pdf
And which model Hitachi did I ask about in my post to you? Was it the DK23EB-40? Data sheet:
http://ssddom01.hgst.com/tech/techlib.nsf/techdocs/34C5D1FE78F2386C86256C520065C210/$file/DK23EA.DK23EBDS.PDF
From the specs on those two, it looks like the newer Hitachi DK23EB-405400RPM HDD hardly consumes much more power than your DK23DA-20F 4200RPM HDD:
Hitachi: DK23DA-20F: 20GB 4200RPM Seek .45A (2.25W) Read/Write .40A (2W) 2MB Buffer
Hitachi: DK23EB-40: 40GB 5400RPM Seek .45A (2.25W) Read/Write .42A/.40A (2.1W/2W) 2MB Buffer
Thanks to Tom Stangl for posting a link to article comparing the Toshiba MK4019GAX drive (5400rpm, 16MB buffer, 9.5mm thin) IBM Travelstar 40GNX (5400rpm, 8MB buffer, 9.5mm thin).
I found the IBM Travelstar 40GNX 40gb 5400RPM 8MB (buffer) by searching for model IC25N040ATCS05 on Pricewatch. The 8MB buffer really seems to speed things up. Here's a chart comparing benchmarks for Travelstar drives:
http://www.hgst.com/hdd/travel/winbenchcomparison.htm
The only dealer carrying the IBM 40GNX, listed it on Pricewatch as the same drive as a Hitachi DK23FB-40 that I hadn't seen before. I guess it's new, and one not on your web page yet David.
But the IBM model looks like it consumes more power than the 'same' Hitachi model. The specs show the Hitachi DK23FB-40 to consume about the same power as the DK23DA-20F & DK23EB-40, which is only .02A on 'write' more than your DK23DA-20F, and less than its IBM 40GNX counterpart:
Hitachi: DK23FB-40: 40GB 5400RPM Seek .45A (2.25W) Read/Write .40A/.42A (2.0W / 2.1W) 8MB Buffer http://docs.us.dell.com/docs/storage/p51920/specs.htm
IBM Travelstar 40GNX IC25N040ATCS05: 40GB 5400RPM Seek .52A (2.6W) Read/Write .5A (2.5W) 8MB Buffer http://www.hgst.com/tech/techlib.nsf/techdocs/0CE8A209006E45CD87256BA4004D5C44
So far it looks like the Hitachi DK23FB-40 is the winner at $143.00 complete with shipping on Pricewatch (including $3.00 residential delivery). I'm assuming it's acoustic noise is low. Funny I can't find a PDF specification file for it at Hitachi.
The DK23FB-40 also consumes a bit less power than the Toshiba MK4018GAS I was originally look at: Read / Write = 2.3W. The total with shipping and tax for the MK4018GAS from BananaPC was going to be about $129. So the DK23FB-40 will only be about $14 more.
Then there was the Toshiba MK4019GAX, but with Seek @ 2.9W, and Read / Write @ 2.5W, I guess I'll pass on it:
http://www3.toshiba.co.jp/storage/english/spec/hdd/mk4019gs.htm
anyways, it's up to you.... best to use a lower power draw HD (see read/write
seek watt usage and various online 2.5" HD tests that benchmark HD
temperatures) if you're worried.
I'll have to dig up that old magazine that gave HD temps for some of the newer
2.5" HDs and post....
Let me know what you think about my choice to go with the Hitachi: DK23FB-40.
Thanks,
Matt
_________________________________________________________________
High-speed Internet access as low as $29.95/month (depending on the local service providers in your area). Click here. https://broadband.msn.com
************************************************************** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives
-------TO UNSUBSCRIBE-------
Reply to any of the list messages. The reply mail should be
addressed to: [EMAIL PROTECTED] - Then replace any text
on the message's subject line: cmd:unsubscribe
--------TO UNSUBSCRIBE DIGEST------
Do above but with this on subject line: cmd:unsubscribe digest
**************************************************************