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lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
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 Posted: Sat Mar 03, 2007 9:37 am Post subject: VIA C7 |
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hi, i got 2 VIA C7 last month
they are in PGA and pin-compatible with Pentium-M (of course need supportive chip such as VIA VN800 to use them )
however,the via website says that the VIA C7M is only available in BGA ....
i guess the VIA website is a little out of date
http://www.viatech.com.tw/en/products/processors/c7-m/ |
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Mixeur
Joined: 06 Jan 2005
Posts: 4038
Location: Sochaux, France
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D.8080
Joined: 03 Apr 2006
Posts: 1474
Location: Italy
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| Posted: Sat Mar 03, 2007 10:27 am Post subject: |
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Dude, that's an uber-cool chip!
A shame it can't be tested in P-M board... |
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soeren
Joined: 07 Mar 2006
Posts: 166
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| Posted: Sat Mar 03, 2007 10:54 am Post subject: |
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| Damn that's nice...what clockspeed does it have? Does anyone know how it's performance is? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
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| Posted: Sat Mar 03, 2007 5:58 pm Post subject: |
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| dume wrote: | Dude, that's an uber-cool chip!
A shame it can't be tested in P-M board... |
if your P-M used a VIA chip , it is quite possible to "downgrade"
the Pentium M CPU to the VIA C7
the previous owner of these C7 is "upgrade" their C7-M notebook
to pentium M CPU
below is a link to a Taiwan forum for how to upgrade the C7-M notebook LM7WV
(in Chinese but you could click the link inside to see the pictures of upgrading process)
http://www.mobile01.com/topicdetail.php?f=159&t=192225 |
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D.8080
Joined: 03 Apr 2006
Posts: 1474
Location: Italy
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lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
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| Posted: Sat Mar 03, 2007 6:40 pm Post subject: |
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one of my C7 has print read as " 754 1500/400 0538CO"
and according to this link , my C7 should be called as C7-M 754 (vs the nanoBGA2 C7M)
thx for share!
Lee |
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swaaye
Joined: 02 Sep 2005
Posts: 47
Location: WI, USA
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| Posted: Mon Mar 05, 2007 5:08 pm Post subject: |
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They are very slow. Per clock is worse than like a Pentium II. That 1.5 GHz is more like a 800 Mhz P3.
But yah they are very low on the power consumption. And they have a hardware-based encryption unit which is extremely fast for that purpose. I imagine the chip gets used in ATMs and schtuff cuz of that. And Walmart self-checkouts maybe! |
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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| Posted: Tue Mar 06, 2007 10:36 am Post subject: |
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Slow - that word not exist in describing VIA CPUs 
I don't need C7 at this moment but I use C3 1 Giga Pro BGA with integraded all peripherials on mobo to P2P connection. My energy-bill is higher for a few cents per month For this I don't see better CPU from AMD or Intel.
_________________
Visit ABC CPU - Virtual CPU Museum. |
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swaaye
Joined: 02 Sep 2005
Posts: 47
Location: WI, USA
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| Posted: Mon Mar 12, 2007 3:26 pm Post subject: |
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| Yeah they are undeniably very low power. I've always wanted one of those mini itx boards.... |
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lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
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| Posted: Wed May 09, 2007 9:13 am Post subject: Re: VIA C7 |
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| lither wrote: | hi, i got 2 VIA C7 last month
they are in PGA and pin-compatible with Pentium-M (of course need supportive chip such as VIA VN800 to use them )
however,the via website says that the VIA C7M is only available in BGA ....
i guess the VIA website is a little out of date
http://www.viatech.com.tw/en/products/processors/c7-m/ |
followup
.....
a VIA guy told me
the 2nd chip (the one without speed mark)
is a C7 C5J (which is a very small print on the bottom of both chip ) N2 (i dont know why he call it N2 and there is no clue on both chips, he just say N2 version ) ES
.....
Lee |
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D.8080
Joined: 03 Apr 2006
Posts: 1474
Location: Italy
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| Posted: Wed May 09, 2007 10:40 am Post subject: |
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| N2 is maybe core revision? |
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swaaye
Joined: 02 Sep 2005
Posts: 47
Location: WI, USA
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| Posted: Fri May 11, 2007 4:24 pm Post subject: |
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A friend of mine couldn't install his printer drivers because the driver saw his 1.5 GHz C7-M as too slow.  Poor VIA and their lack of recognition. |
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D.8080
Joined: 03 Apr 2006
Posts: 1474
Location: Italy
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| Posted: Mon May 14, 2007 3:27 pm Post subject: |
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| Has anyone here used/tested a C7? |
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