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General Category => Overclocking => Topic started by: Jackson on January 06, 2006, 04:10:09 PM

Title: Overclocking a AMD Sempron 64 2800+
Post by: Jackson on January 06, 2006, 04:10:09 PM

This is my first time to attempt to overclock any processor. Please correct me if I am wrong. I am going to use a BIOSTAR TForce6100 Socket 754 Mainboard, with a AMD Sempron 64 2800+. I just modifying the clock multiplier on the system board or in the BIOS?

I appreciate any help or advice anyone might be able to give.

Title: Overclocking a AMD Sempron 64 2800+
Post by: A+Net+MCP on January 16, 2006, 01:08:39 AM

The BIOS is in the system board.  /rolleyes.gif\' class=\'bbc_emoticon\' alt=\':rolleyes:\' />

Title: Overclocking a AMD Sempron 64 2800+
Post by: ohm on January 18, 2006, 08:54:48 AM

If you want to overclok then you should use corsair ram not kingston because corsair garantee their memory even you overclok it

Title: Overclocking a AMD Sempron 64 2800+
Post by: Beomagi on May 08, 2006, 11:38:34 AM

[quote name=\'ohm\' post=\'82878\' date=\'Jan 18 2006, 08:54 AM\']If you want to overclok then you should use corsair ram not kingston because corsair garantee their memory even you overclok it[/quote]
no ddr400 would guarantee an overclock. I usually recommend ddr500, because while it may not give the best latencies, you at least can overclock to 500 (25% fsb boost) keeping within the memory spec.

I used a similar system for a pc i built for my GF last christmas. I overclocked the chip from 1.6GHz to 2.35 on an asrock 6100 based mobo, and that board doesnt even let me adjust voltages. I clocked it down to 2.2GHz, and it's been running smoothly, in a rather hot climate, though while here, it never even broke 40C overclocked on the stock sink.

your chip has a multiplier of 8; your ram runs off the bus in a 1:1 ratio normally.
The base bus is 200MHz, giving your 2800+, a speed of 200*8=1600MHz, and ram a 200*2(for ddr) 400MHz. The HTT multiplier is x4, giving a hypertransport bus speed of 200x4=800MHz


step 1
define a stability test.
download prime95 http://www.mersenne.org/freesoft.htm (http://\"http://www.mersenne.org/freesoft.htm\")
run the torture test for 10 mins to check your cpu each overclock. When running have a temp sensor up so you can make sure you're not going to kill your chip.


step 2
Increase the base bus speed by 15 MHz. This is available through the bios.
that would make the chip run at 1720MHz, and memory at 430MHz (asrocks bios applies a ratio to the memory on trying to overclock it. I was only able to see the true speed running cpu-z).
If you fail on the torture test, freeze or blue screen, then try these one at a time
a. drop the memory speed to 333/266/200, or apply a ratio that does that. 333 really means a 5/6 ratio, multiplied by the memory speed - so if 430 is unstable, a 5/6 ratio means you'd be running 358 MHz.
b. drop the HTT multiplier to x3 (HT bus is very sensitive)
c. increase voltage to cpu (vcore) by the next point

keep a note of your temps. If it seems high, back down.

Title: Overclocking a AMD Sempron 64 2800+
Post by: lee is here 06 on September 17, 2006, 08:15:26 PM

ye what he said b4 use ur ram,

Title: Overclocking a AMD Sempron 64 2800+
Post by: undertakerjoey on September 21, 2006, 06:43:08 AM

yah he would