Overclocking A7N8X XP2400?

jonno946 · Oct 7, 2003

Hi there,

I'm abit of a newbie overclocker, wanting to get that little bit more power from my PC. I have an Athlon XP2400+, Asus A7N8X Motherboard and Crucial DDR3200 memory.

Can anybody advise me on what speeds i am capable of overclocking to, and how? My current stable system temperature runs at around 40 degrees.

Has anybody had any expericence overclocking this hardware?

Any help is much appreciated!

Jonathan

scottchen · Oct 7, 2003

first lower the multiplier on the 2400+ to about 12, wait a minute i'm not sure if A7N8X unlocks multiplier, if it doesn't keep it as low as you could go 13 maybe. Then increase FSB to 200, raise vcore to 1.75 raise vdimm to 2.7 computer should boot. That'll get you 2400mhz instead of 2400+, but i'm not 100% sure that your cooling would handle it.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

phsstpok · Oct 7, 2003

first lower the multiplier on the 2400+ to about 12, wait a minute i'm not sure if A7N8X unlocks multiplier, if it doesn't keep it as low as you could go 13 maybe. Then increase FSB to 200, raise vcore to 1.75 raise vdimm to 2.7 computer should boot. That'll get you 2400mhz instead of 2400+, but i'm not 100% sure that your cooling would handle it.

Isn't 13 x 200 = 2600?

56K, slow and steady does not win the race on internet!

scottchen · Oct 8, 2003

Oops I was thinking 12x multiplier

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

speeduk · Oct 8, 2003

LMAO. Clear cmos time hahaha!

<A HREF="http://service.futuremark.com/compare?2k1=7000747" target="_new"> 3D-2001 </A>
<A HREF="http://service.futuremark.com/compare?2k3=1284380" target="_new"> 3D-03 </A>
 120% overclocker (cheapskate)

phsstpok · Oct 8, 2003

Scottchen, I don't think everyone is going to be as lucky as you and hit 2.7 Ghz (or whatever it was).

If one doesn't wish to mod then XP2500+ is good choice for for A7N8X because lower multipliers are already available with XP2500+. This allows high bus speeds and you also get the extra L2 cache. Simarly, Tbred B XP1700+ or XP1800+ are good choices because of the low multiplier range but probably won't overclock as much.

On legacy motherboards the XP2400+ is the better choice because the old boards can't obtain 200 Mhz FSB (or even 166 Mhz in some boards). This being the case the higher multipliers are needed to obtain a decent overclock.

If you have a motherboard that selection of both the high and low range of multipliers (as does Abit NF7-S) then pick the CPU then pick the CPU that is prefered.

56K, slow and steady does not win the race on internet!Edited by phsstpok on 10/07/03 08:13 PM.

phsstpok · Oct 8, 2003

As Scottchen said you can raise the bus speed. With PC3200 Memory you would be able to reach 200Mhz FSB. However, with the minimum multiplier that you can set with the XP2400+ on the A7N8x being 13x that would mean you would be over 2.6 Ghz. This might be too high for your CPU.

Try for something lower like 166 Mhz FSB which would put your CPU at 2.166 Ghz (13 x 166). If it's stable increase FSB from there. If you need to increase Vcore or VDimm a little for stability then do it.

[addition]
If you aren't afraid of mod'ing then you can use the wire trick (the socket one is easiest) and connect pins AJ27 to AH28 (see link, lower middle of the page). This would give you the low range of multipliers which in turn would make it easier to hit 200 Mhz FSB.

<A HREF="http://www.beachlink.com/candjac/Workarounds.htm" target="_new">http://www.beachlink.com/candjac/Workarounds.htm</A>

56K, slow and steady does not win the race on internet!Edited by phsstpok on 10/07/03 08:32 PM.

scottchen · Oct 8, 2003

I think it should hit 200FSB no problem but then again the multiplier mod, that's tricky. If you do that then you could use 12x200 then that's really good.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

phsstpok · Oct 8, 2003

The mod is easy. Stick a fine wire strand in the correct holes in the socket and it's done.

I've had to do just the opposite to pull 8X HI instead of LO. Connecting AJ27 to Vcc (Vcore) instead of Vss (Ground) forces the bit HI. This forces the higher multipliers even on legacy motherboards like my KT133A mobo.

It's just easier on A7N8X because you don't need to determine the resultant multiplier when you switch the 8X bit. A7N8X doesn't balk on invalid multiplier settings.

56K, slow and steady does not win the race on internet!

scottchen · Oct 8, 2003

easy for you not easy for people who has never even heard of it.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

phsstpok · Oct 8, 2003

What do you want, pictures?

Well, I gave you one. See the link above. Look for the picture of the CPU socket. The red marking on the socket shows the two holes (AJ27 and AH28) that you put each end of the wire strand in. This is to set the low multipliers as you would be doing with A7N8X and XP2400+.

If you wanted to set the high range you connect pin AJ27 to AH26. You start at the same upper point of the red marking but go diagonally down to the right instead of diagonally down to the left.

Ignore the green marking. That's for one of the workarounds for getting Tbreds/Bartons to work on legacy motherboards.

56K, slow and steady does not win the race on internet!

scottchen · Oct 9, 2003

If you figure out how to unlock Intel P4 processors I'll personally buy you a 9800XT.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

phsstpok · Oct 9, 2003

Can't be done.

As far as I know the FID traces are cut internally in P4.

56K, slow and steady does not win the race on internet!

scottchen · Oct 9, 2003

I know, that's why i said something insane.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

speeduk · Oct 9, 2003

Will you buy me an XT just for looking pretty?

<A HREF="http://service.futuremark.com/compare?2k1=7000747" target="_new"> 3D-2001 </A>
<A HREF="http://service.futuremark.com/compare?2k3=1284380" target="_new"> 3D-03 </A>
 120% overclocker (cheapskate)

scottchen · Oct 9, 2003

I don't know, give me some poof, how do i know if you're pretty or not

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

speeduk · Oct 9, 2003

Ok n/m

<A HREF="http://service.futuremark.com/compare?2k1=7000747" target="_new"> 3D-2001 </A>
<A HREF="http://service.futuremark.com/compare?2k3=1284380" target="_new"> 3D-03 </A>
 120% overclocker (cheapskate)

scottchen · Oct 10, 2003

LOL, I'll buy you a Trident XP4 T1. If you pay shipping which is more than the card itself.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

Overclocking A7N8X XP2400?

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