Upgrading CPU

[haribo85]

Hi,

I currently have a Athlon 2400+ chip running on my socket a board. It posts as running as 1800+ and always have done - Im not sure whether this is a faulty chip but I am now on my second board and it still does it.

I am looking to upgrade my system - although I dont have much money at the moment - so I was looking at getting a socket a AMD Sempron 3000+.

I was just wondering whether I will notice much notice in between the two, as the 2400+ runs at 1.5ghz and the AMD Sempron 3000+ says it runs at 2.0ghz?

Thanks

 

[ACESHIGH]

Hi,
I was just wondering whether I will notice much notice in between the two, as the 2400+ runs at 1.5ghz and the AMD Sempron 3000+ says it runs at 2.0ghz?

Thanks

The Sempron 3000+ will be a fair bit faster.

As compared to yours it will have a 500MHz higher clock. The Sempron also has a FSB of 166MHz (faster then the XP's 133MHz) & also the Sempron has double the amount of L2 cache (ie 512kB)


All of which will mean the Sempron beats your Athlon XP CPU by a fair margin.

 

[ACESHIGH]

Hi,

I currently have a Athlon 2400+ chip running on my socket a board. It posts as running as 1800+ and always have done - Im not sure whether this is a faulty chip but I am now on my second board and it still does it.

I am looking to upgrade my system - although I dont have much money at the moment - so I was looking at getting a socket a AMD Sempron 3000+.

I was just wondering whether I will notice much notice in between the two, as the 2400+ runs at 1.5ghz and the AMD Sempron 3000+ says it runs at 2.0ghz?

Thanks

BTW are you sure you have the multi set at 15 & not 11.5 ?
as the XP 2400+ should also be running at 2.0ghz.

 

[haribo85]

Hi, I am not sure what it is running at - I just left it at defaults out the box.

 

[decto]

There will be little performance difference between the two. It's really not worth the upgrade.

Your FSB is probablly set at 100Mhz so with a 15x multiplier you get 1.5Ghz.
Your FSB should be set to 133Mhz with a 15x multiplier to give 2.0Ghz

The sempron is the same core as the XP2400, the only differences are a 166Mhz FSB and an additional 256k cache making 512k the same as the old barton. On the XP rating it would probably equate to around XP2600/2700 so only around 10%

The XP3000+ rating comes from an AMD trick, the Sempron is comparable to the Celeron so the Sempron chips were rerated to compete with the Celeron. Bigger numbers sell.
http://www.hardwaresecrets.com/article/127

Also you need to confirm your motherboard can handle a 166FSB CPU and would need to get a recent BIOS to ensure it is recognised and supported.

All in all, get your 2400+ to run at it's correct speed, then save a little for a new mainboard and cpu. The A64 S939 venice models are cheap and a A64 3000 venice is much faster than a Sempron 3000

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[haribo85]

Thanks for your advice - very much needed.

I think I will hold off.

The motherboard is fairly new so it should handle it but I wont push it any way.

***********EDIT************
I have a MSI motherboard with things like high performance mode and dynamic overclocking which i dont really want to get into and i have left alone.

But I have just been into the bios and the CPU FSB was set to 100, I have changed it to 133 and its now running as a 2400+ at 2.0ghz.
Now do I need to fiddle with any of the other things to run stable?
Things like:
CPU Ratio - which is set to auto
CPU Voltage - which is set to auto


Thanks again

 

[decto]

The CPU ratio and voltage are fine set to Auto. The CPU is performing exactly as designed.

The CPU ratio is the multiplier. If you can set this to 13 (from 15) then increase the FSB to 166 and you will have an XP2700. Should work fine at standard voltage but if you have issues increase it a touch. At 166 FSB it's then better to set the memory to DDR333 as this syncronises it with the CPU FSB.

Don't use the dynamic overclocking, it's better to know what your system is doing

 

[haribo85]

Thanks for your advice.