OC mobile 2500

[gwyn]

hi all
I have been OC my CPU and was wondering if my results sound ok and how much further I can push it.
208/11.5 @ 2400
vcore 1.75
ramm 2.7
After 3 hours of prime95 torture test my temps were
CPU 47c
Case 27c
3d mark03 6360

Abit NF7-S rev2
mobile 2500
512 crucial PC3200
WD caviar 120
BBA 9800pro 410/366
Chieftec case
Antec trueblue 480
4 silanX case fans

 

[Mr5oh]

Temps and everything look good, espeically after a 3 hour test. You should be able to go a little farther, but every machine is different so you will just have to try and push it a little farther and see.

My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>

 

[gwyn]

thanks.
how high can i go with the vcore mabye 1.8?
also is it safe to give the ram a bit more volts?

 

[Mr5oh]

I have never gone past 1.8 volts on the core. I have read pretty much everywhere that the most you ever want to go with an XP chip is 1.8.

There are a few here on the board that say you can go 1.825 on mobile chips with good cooling.

In my opinion, I consider 1.8 the "safe" limit. I would go up to 1.8, it should allow you to go a little farther.

My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>

 

[gwyn]

thanks. I will try and push a little further

 

[Coyote]

The Abit NF7 series is famous for undervolting the cpu. Use Motherboard Monitor 5 to check voltages. Many with this mobo would need to set BIOS to 1.85 or higher to actually reach 1.80 vcore.

Mobile XP 2600+ (11X200)
Abit NF7-S v 2.0
Maxtor 60GB ATA 133 7200RPM
512MB Corsair Twinx 3200LL
BBA 9800 Pro
Enermax Noisetaker 420 watts
Win98SE

 

[gwyn]

well iv tryed putting the vcore to 1.8 and the fsb to 113 but I just get errors in prime95.
but its solid as a rock at 110/11.5 @ 2.42 1.76

 

[Monkeymagic]

1.9v is the max on air. I'm running my XP2500@2.6 with just over 2v 24/7. I can run 2.7 stable too. The max I had was 2.2v 2.85ghz. Using DD D4, TDX, Thermochill 120.3.

 

[gwyn]

Is there anything more I can do to get more performance?

 

[Cybercraig]

Add another 512mb of RAM.

Abit IS7 - 3.0C @ 3.6ghz - Mushkin PC4000 (2 X 512) - Sapphire 9800Pro - TT 420 watt Pure Power
Samsung 120gb ATA-100 - Maxtor 40gb ATA - 100
Sony DRU-510A - Yellowtail Merlot

 

[Monkeymagic]

Have you tried a Merlin or tictac bios? I managed 2850 with the D25 Merlin bios.

 

[gwyn]

no I have'nt could you please tell me more about these bioses

 

[gwyn]

if I was to get another 512 stick thats the same as the other one, could I just put it straight into my mobo
or would I need to reduce the overclocking of the CPU?
thanks Gwyn

AMD mobile 2500
Abit NF7-S
512 pc3200 crucial
120 wD HDD
ATI 9800pro
Chieftec dragon
Antec trueblue 480
4 silenx fans

 

[blackphoenix77]

No, just so long as it's the same stick or RAM as the other one, PC3200.

<font color=blue>AthlonXP-M 2500+(12x200)</font color=blue>|<font color=green>Abit NF7-S</font color=green>|<font color=red>Kingston DDR400 2x256Mb</font color=red>|<font color=purple>NEC Accucync90 19"</font color=purple>|<font color=black>Sapphire 9600XT</font color=black>

 

[gwyn]

Great I think I will get another stick. do you think this will prevent the slowdowns I get in Doom3?

 

[blackphoenix77]

It will help.

<font color=blue>AthlonXP-M 2500+(12x200)</font color=blue>|<font color=green>Abit NF7-S</font color=green>|<font color=red>Kingston DDR400 2x256Mb</font color=red>|<font color=purple>NEC Accucync90 19"</font color=purple>|<font color=black>Sapphire 9600XT</font color=black>

 

[Monkeymagic]

<A HREF="http://www.underclock.rocks.it" target="_new">http://www.underclock.rocks.it</A>

Modded bios'

 

[addiarmadar]

You are going to see a huge jump and voltage req and temps when going past 2.4ghz

<i><font color=red>Only an overclocker can make a computer into a convectional oven.</i></font color=red>