Sempron 3100 in an Asus A7v8x

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

In article <42270e5c$1_1@127.0.0.1>, "Colonel Blip"
<colonel.blip@removethespambigfoot.com> wrote:

> Hello, All!
>
> I currently have an Asus A7V8X m/b with an Athlon XP 2200+ (or maybe 2400+?)
> rated at 2.2 mhz system which is oc'ed by about 12%.
>
> I understand I can upgrade this to a Sempron 3000+.
>
> Questions:
>
> Will this chip work?
> If that is all I change will I really see much difference in overall
> performance?
> Would it likely continue to be a stable mb/cpu combination at the oc I use?
>
> Thanks.
>
> Colonel Blip.
> E-mail: colonel.blip@removethespambigfoot.com
>

Semprons (as prepared from the quoted documents):

Core FSB Clk Mult P.R Cache Vcore Pmax Ptyp Tmax Model Doc
2000 333 166 12 (3000+) 512KB 1.60V 62.0W 49.4W 90°C 10 31993.pdf

Core FSB Clk Mult P.R Cache Vcore Pmax Ptyp Tmax Model Doc
1500 333 166 9 (2200+) 256KB 1.60V 62.0W 49.4W 90°C 10 31994.pdf
2000 333 166 12 (2800+) 256KB 1.60V 62.0W 49.4W 90°C 10 31994.pdf

Core FSB Clk Mult P.R Cache Vcore Pmax Ptyp Tmax Model Doc
1500 333 166 9 (2200+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf
1583 333 166 9.5 (2300+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf
1667 333 166 10 (2400+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf
1750 333 166 10.5 (2500+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf
1833 333 166 11 (2600+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf
2000 333 166 12 (2800+) 256KB 1.60V 62.0W 55.9W 90°C 8
31693.pdf

Athlons (partial table):

Family Core P.R. Pkg CPU Cache Mult Core Tmax Power
Freq Clk Volts

XP Model 8 2167 (2700+) OPGA 166 256 13x 1.65V 85oC 62.0W
Thoroughbred 2083 (2600+) OPGA 166 256 12.5x 1.65V 85oC 62.0W

XP Model 8 2133 (2600+) OPGA 133 256 16x 1.65V 85oC 62.0W
Thoroughbred 2000 (2400+) OPGA 133 256 15x 1.65V 85oC 62.0W
CPU ID 0681 1800 (2200+) OPGA 133 256 13.5x 1.60V 85oC 57.0W
1733 (2100+) OPGA 133 256 13x 1.60V 90oC 56.3W
1667 (2000+) OPGA 133 256 12.5x 1.60V 90oC 55.7W
1533 (1800+) OPGA 133 256 11.5x 1.60V 90oC 55.7W
1467 (1700+) OPGA 133 256 11x 1.60V 90oC 55.7W

XP Model 8 1800 (2200+) OPGA 133 256 13.5x 1.65V 85oC 61.7W
Thoroughbred 1733 (2100+) OPGA 133 256 13x 1.60V 90oC 56.4W
CPU ID 0680 1667 (2000+) OPGA 133 256 12.5x 1.65V 90oC 54.7W

I think your current processor is the Model8 2400+. The FSB is
FSB266. A Sempron is FSB333. The Sempron P.R. rating is compared
to Celeron, while the Athlon P.R. rating is compared to a P4.
So, you cannot compare the Sempron numbers directly to your
current processor (i.e. speedup is not as great as you think).

The Sempron is supported by the A7V8X, but a certain revision
of board is needed, with the FSB333 sticker on the Northbridge.
http://usa.asus.com/support/cpusupport/cpusupport.aspx

The higher FSB will allow more bandwidth, when it comes to
fetching data from memory. Also, the larger cache on the 3000+
will help. The only question then, is whether your board
revision is good enough for the upgrade.

As for overclocking the A7V8X, I have no idea how much headroom
is left above FSB333. The higher you go, the more stress on
how the (single channel) memory is configured. At some point,
you may be limited to using a single stick of memory.

HTH,
Paul