Twenty Questions...answers welcome
First...the system:
A7M266
AXIA "Y" 1.2, 266, unlocked from FAB
512 MB Crucial PC2100
PCI modem
NIC
Matrox 32MB G450
Win98SE
OCZ Gladiator copper HSF on the way
Now the questions:
1. Is it better to OC the processor via multiplier or FSB.
2. If OC is via multiplier, will there be any effect on other
devices...NIC...video, etc?
3. If I've gotten the FSB up to 150 and I start having problems
with AGP or PCI stuff, can I change the respective speed..and how?
4. Is there any other way to change the multiplier without
soldering a dipswitch and resistors on the board..ie can the bridges
on the CPU be modified to change multiplier?
5. What should I run for DDR voltage and Vcore to maximize speed?
6. Would someone like to share their BIOS setup parameters with
me?
7-20 reserved for future posts
Thank you all for any help you can provide.
ApprenticeRating: 0%, 0 votes
Gotta disagree here. Common overclocking logic has it that the biggest gains
will come via increases in FSB speed, because it inherently affects the
speed of so many other devices, namely your graphics card, any PCI cards and
memory. The trade off being that many of these devices will not like running
out of spec and may spit the dummy. Be particularly aware of no-name ram, cd
burners and network cards. It sounds like your doing well, though, with a
fsb of 150. If you can keep your system stable at this fsb speed, you'll
benchmark considerably better than a machine running at the same speed via
increased multiplier rather than fsb.
Which is exactly why the fsb option is more advantageous, if more tenuous.
No, PCI divider is set at 1/4 of fsb and AGP at 1/2. This is what can cause
problems in some peripherals.
The best means to determine a "problem" component is to delete the component
's drivers from system settings (control panel, system applet, device
manager tab) - then powering down the computer & uplugging the system,
followed by physically removing the suspected component from the PCI slot.
Reboot and attempt to run as normal, less the services of the "problem"
component. If the problem encountered for which the component was removed
persists, then another component or setting is at fault. Similarly, each PCI
device can be removed and checked in this fashion.
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These two sites give excellent How-to guides for connecting the bridges in
question. Have a look around as they have many excellent articles on
overclocking.
Sound advice. Higher Vcore = more heat = bad. Increase voltage as a last
solution for stability woes. But if I were you, I'd rather drop the fsb down
1 or 2Mhz, unless you really need to have every last ounce of speed. If you
do, make sure you've got a good heatsink+fan.
Sorry, Iwill KK-266-R.
Try alt.comp.periphs.mainboard.abit
Given usual AXIA ratings, you should be able to get close to 1.5Ghz
These combo's will give you between 1.45Ghz and 1.5Ghz at stardard voltage.
If you find the system is unstable, drop the fsb a touch. Likewise if all
runs well and good, you may be able to increase the fsb a little and still
run stable.
9.5 * 155ish
10 * 148
10.5 * 140
11 * 133
Good luck.
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for additional performance.
No only the bus speed will effect the cards.
I would settle for around 143-146Mhz, should be rock solid that way,
Do the multiplier first, then tweak FSB.
Yes they can.
Only raise the voltages if the system is unstable, OCing the CPU
usually always requires a small boost in Vcore, AMD recommends 1.85v
max core voltage. I've never messed with raising ram voltage to
overclock, PC-133 here.
KT7-RAID here.
20? Thats all? :)
Ed
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