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NF7(-S) + 200FSB= unstable!?

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Name: Dreamfluid
Date: October 11, 2004 at 13:06:15 Pacific
OS: Windows XP
CPU/Ram: 2500+/1024
Comment:

I've had 2 abit nf7 mobo's. NF7 and NF7-S rev 2.0. Both are highly unstable at 200fsb.. what the heck is wrong?! No matter how much Voltage I give'em they're still crashing like there would be no tomorrow.

CPU: Barton 2500+
Mem: 1024 MB TWINMOS PC3200/400DDR

Anyone know what mobo to buy if I want high FSB's?



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Response Number 1
Name: indigian
Date: October 12, 2004 at 07:57:10 Pacific
Reply:

Have you correctly configured the right options in bios?


Tt Lanfire
nf7-s v2.0
XP-m 2500@211x11
SP 97
512mb pc3200
Jou Jye 550w psu
FX5600
WDCaviar 160gb sata

;~}


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Response Number 2
Name: jam
Date: October 12, 2004 at 08:07:52 Pacific
Reply:

Although I've never worked with either of those boards, there's plenty of info out there about them & the NF7-S rev 2.0 is mentioned in the overclocking forum quite a bit...it rates high on the list of recommended boards.

I know the NF7 doesn't officially support 200mhz/400FSB, so that may have something to do with your prob with that board, but the NF7-S v2.0 does support it.

Have you ruled out other possibilities such as overheating, bad RAM, weak PSU?

Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB


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Response Number 3
Name: jam
Date: October 12, 2004 at 08:13:57 Pacific
Reply:

Maybe this article will help:

http://www.extremeoverclocking.com/reviews/motherboards/ABIT_NF7_v2.0_1.html

Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB


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Response Number 4
Name: Dreamfluid
Date: October 13, 2004 at 03:58:31 Pacific
Reply:

I've tried all settings with volts and crap. Slow ram and cpu just to get the fsb higher, even that does work lame...

Thanks for the responses guys!

/Anton


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Response Number 5
Name: giggles
Date: October 13, 2004 at 22:55:18 Pacific
Reply:

check your psu!
how many watts?
what brand?
how many amps under +12volt rail?

i have the abit nf7-s and athlon xp2500 and i can push it even beyond 200fsb in one raise of my vcore
what is painfully obvious to one person might be just painful to the other


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Response Number 6
Name: Dreamfluid
Date: October 15, 2004 at 09:26:24 Pacific
Reply:

giggles:

I've got a 350w q-tec psu.
(going to buy a q-tec gold 400w because I'm only borrowing the 350w)

How many amps below the +12v rail?? Is that important? How do I check that?

When you go at 200fsb what is your vcore at? 1.4v? The only difference I get with 1.5,1.6,1.7, is that it only crashes more..


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Response Number 7
Name: giggles
Date: October 15, 2004 at 15:50:49 Pacific
Reply:

my vcore is at 1.675
to check the amps under the +12 volt rail, look at the chart on the powersupply itself
this chart will have +5, +3.3, +12, and a few other rails
right below the rail is the number of amps
this chart on your powersupply

Why is it important?
your cpu runs off of the +12volt rail

why do you need so many amps?
if water is electricity, then amps are like the rate that water moves through a pipe and the pipe is like voltage
amps=speed of water movement
volts=diameter of pipe
wattage=total flow rate

so you can see that if you have 500watts, it's not gonna do you any good at all if you only have 5amps on the +12volt rail
it would be like a trickle in a drainage ditch pipe

check this thread out about electricity

what is painfully obvious to one person might be just painful to the other


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Response Number 8
Name: Dreamfluid
Date: October 17, 2004 at 05:34:09 Pacific
Reply:

thanks!

I checked the +12v rail and it said: 15 amp.
Is that good or bad?


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Response Number 9
Name: giggles
Date: October 17, 2004 at 14:20:01 Pacific
Reply:

no dude, 18amps, you want at least 18amps on the +12 volt rail
your powersupply is not cutting it

BUT rememer this isnt necesarrily what's limiting your overclocking
so before you go out and buy a whole new powersupply
check your voltages
are they stable? look at your +12volt voltage
is it around 12 and stable?

i just dont want you to go out and buy something and spend a lot of money, only to find out that you still cant hit 200fsb

what is painfully obvious to one person might be just painful to the other


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Response Number 10
Name: Dreamfluid
Date: October 18, 2004 at 01:25:45 Pacific
Reply:

Thanks for your concern giggles but I must still buy one cos I don't have my own PSU(except a 300w that doesn't do the job).

I'm not sure if the rails are stable cos my mobo is burnt and I'm waiting for a new one.

I have a hard time finding the amps on the product info when I check in different internet stores. I was, like I said, planning on a q-tec gold 450w(maybe 550w) cos it's cheap, but maybe that's a problem.
Do you think that one would cut it?

Thanks alot!

/Anton



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Response Number 11
Name: jam
Date: October 18, 2004 at 12:53:29 Pacific
Reply:

If the amps aren't listed, don't buy it! You may be shelling out for a POS with only 11-13amps on the +12v rail & that simply won't cut it! This one seems to be one of the favorites around here:

http://www.newegg.com/app/ViewProductDesc.asp?description=17-153-006&depa=0

Another thing to check is your BIOS setting for Spread Spectrum...make sure it's disabled.

And your default CPU voltage should be 1.65v, but you may find it needs a little more to stablize your overclock


Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB


0

Response Number 12
Name: giggles
Date: October 18, 2004 at 16:05:07 Pacific
Reply:

Like i always say get a good name brand and save yourself from getting crap
Antec, Enermax, PC Power and Cooling
all excellent
in fact the best
i would reccomend getting an Antec just because The cheapest PC Power and Cooling model that would be sufficient is i think the silent power 410 which is like $80
no one wants to pay that much for a powersupply!
A good Antec will go for about $60 and will do just fine
here's things to look for when buying:
you want it to be very heavy 'cause this means that it has bigger beefier capacitors and coils and heatsinks inside

you want it to have plenty of molex connectors and that is a tip-off to junk powersupplies which often have very few molex connectors on them

and since you have an amd system you really want a 2 fan powersupply with a fan on it's bottom that will suck hot air away from your cpu

18 or more amps on the +12 volt rail
if the powersupply doesnt give you these numbers then by all means stay away!
if they dont give you numbers, they definetly cant be trusted

good luck and keep posting!

what is painfully obvious to one person might be just painful to the other


0

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