Tom's Hardware > Forum > CPU & Components > CPUs > How much can a 1.4 ghz overclock to?
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Kaliman   11-18-2001 at 04:04:52 AM

i have a 1.4 ghz athlon "AYHJA" and i just bought a swiftech mcx462 and i want to overclock this [-peep-] until if fries, but i don't know how to overlock other than increasing the frequency and that becomes unstable fast. So what should i do next? The multiplyer section in my a7m266 bios is grayed out.

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lhgpoobaa   11-18-2001 at 04:30:06 AM
- 0 +

i think i replied to u before... but no matter.
as the multiplier section is greyed out, that means your CPU is locked (the L1 bridges are cut)

u can overclock by upping the easily, but that brings problems.
as u increase the FSB you also increase the RAM speed, PCI & AGP speeds. go too far and your computer wont be stable.

sould u wish to unlock your multipliers, the mcx462 has to come off, and you have to join up the rather small L1 bridges
i.e.
from :::::
to IIIII
using a very fine pencil does the trick, just make sure u dont cross the bridges.
then u can have both multiplier and fsb... the best way to go.

Why do i feel like the lone sane voice in the mental assylum?

Reply to lhgpoobaa
lhgpoobaa   11-18-2001 at 04:33:33 AM
- 0 +

oh yes... another thing.
if you have trouble reaching a certain Mhz, remember that increasing the voltage can help.

for instance, on my 1200C i need 1.86v to run at 1350, and anything higher needs 1.90 or 1.94v.

increasing the voltage increases the heat output significantly, which is why mine usually crashes with a average fop32-1, but with the mcx462 it really shouldnt be a problem :) :) :)

Why do i feel like the lone sane voice in the mental assylum?

Reply to lhgpoobaa
Matisaro   11-18-2001 at 04:44:44 AM
- 0 +

The average aircooled overclock of a ayjha tbird(1.4ghz 99% of the time are ayjha) is 1.65ghz.


www.athlonoc.com has a table which shows the steppings and average overclocks. Rather informative.

~Matisaro~
"The Cash Left In My Pocket,The BEST Benchmark"
~Tbird1.3@1.5~

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Crashman   11-18-2001 at 05:20:22 AM
- 0 +

You should be able to get 1.6GHz out of it easily with relatively small voltage changes.

What's the frequency, Kenneth?

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Kaliman   11-18-2001 at 05:24:40 PM
- 0 +

which voltages do i change and how do i change them. And is by changing the voltage to i risk damage to any other components of the system?

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Thanatos00   11-18-2001 at 06:09:59 PM
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Question: By simply connecting the bridges what exactly does this allow you to do? Use the bios to change the multiplier? What if the bios does not have the multiplier setting?

<font color=blue>- Studies show that the human brain approaches 100 percent retention. -</font color=blue>

Reply to Thanatos00
cera26   11-18-2001 at 06:24:51 PM
- 0 +

yes, it allows you to change the multiplier. If you don't have the option in your BIOS, then the jumpers on the motherboard usually do the trick. If not, you're screwed

Death to all trolls (Intel trolls, that is. AMD trolls aren't really trolls :)

Reply to cera26
Crashman   11-18-2001 at 08:04:37 PM
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You change the vcore aka core voltage. Most Asus and Abit motherboard allow this, otherwise search Tom's or another hardware site for the way to do it on the chip. It doesn't affect other devices and won't harm the chip as long as it's properly cooled.

What's the frequency, Kenneth?

Reply to Crashman
Kaliman   11-18-2001 at 08:54:04 PM
- 0 +

alright so do i change the VI01 voltage of the VI0 voltage. The VI0 changes the voltage to the clcok generator and the VI01 changes the voltage to the chipset and DDR DIMM modules. When i overclock is there any risk of doing anything to my ram? Which voltages should i use?

VI0: 3.3 (default) 3.56, 3.45
VI01: 2.5 (actual default), 2.7 (factory set default), 2.9, 2.8

Reply to Kaliman
Crashman   11-18-2001 at 09:41:41 PM
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I wouldn't bother with the VIO voltage if your not significantly changing the bus speed. If your changing the multiplier, you'll only need to change the processor's core voltage (vcore).

What's the frequency, Kenneth?

Reply to Crashman
Thanatos00   11-18-2001 at 09:52:51 PM
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If you dont have the settings in the motherboard is it posstble to change the multiplier to something specific instead of just unlocking it?

<font color=blue>- Studies show that the human brain approaches 100 percent retention. -</font color=blue>

Reply to Thanatos00
Kaliman   11-18-2001 at 10:04:27 PM
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so you're saying the next step after increasing the frequency is to unlock the cpu by connectint the L1 bridges, and i should do this before i change the voltage. I have an asus a7m266 and i remember reading somewhere that the bios option to change the multiplyer stays grayed out even after you unlock the chip. Can anyone confirm this?

Reply to Kaliman
Crashman   11-18-2001 at 11:38:09 PM
- 0 +

Yes, in fact the websites that caryy the vcore bridge setings also show the multiplier bridges.

What's the frequency, Kenneth?

Reply to Crashman
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