Overclocking help

Sanius

Member
Dec 25, 2004
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I have an amd barton 2500+ with stock heatsink. how far should I overclock it? since it's bottlenecking my 6800, I think I should either overclock the 2500+, or spend $140 on a new cpu..
 

Looney

Lifer
Jun 13, 2000
21,938
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That should easily go to 3200+ speeds, so try that first (probably just need to make the bus 200)
 

Sanius

Member
Dec 25, 2004
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Alright. any other people want to verify what he just said? i don't want to take chances with killing my cpu
 

bobsmith1492

Diamond Member
Feb 21, 2004
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You can't really kill a CPU if you have a heatsink on it.

EDIT: Ok, given reasonable voltage (v<=1.8)
 

SrGuapo

Golden Member
Nov 27, 2004
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You shouldn't kill your CPU by setting the FSB a bit higher. Wrst that can happen is it doesn't like it and defaults to the original clock speed...
 

DyslexicHobo

Senior member
Jul 20, 2004
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Originally posted by: SrGuapo
You shouldn't kill your CPU by setting the FSB a bit higher. Wrst that can happen is it doesn't like it and defaults to the original clock speed...


Don't worry too much about harming anything.
 

Regs

Lifer
Aug 9, 2002
16,665
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Does your motherboard have a AGP/PCI lock? I fried my 9800 when I tried overclocking my Barton to 2.2-2.3 GHz with no lock. Might of been even lower. 200 should be safe though, no worry. Just make sure you check temps and your v- rails.

I'm hopeing the 6800 reports ram temp as well.
 

sniperruff

Lifer
Apr 17, 2002
11,644
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newer mobo's have the thermal diode thing anyway i tihnk? it all started with the althon XP's and the KT333 chipset. even my soltek has it.
 

ayman

Senior member
Dec 22, 2004
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when you do overclock.... for all the pros out there... how do you know what its neccessary to change other settings like voltage, memory timings, multipliers? All i know is how to slowly increment the FSB but when should you be aware of changing other settings. i guess its kinda of an acquired skill that takes some messing around with but does anyone know what i'm kinda asking?
 

bobsmith1492

Diamond Member
Feb 21, 2004
3,875
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If your computer is restarting - then it's time to up the voltage. Run Prime 95 and Memtest to check the RAM and processor. If memtest fails, try some RAM voltage. If prime fails, try some CPU voltage - just never go above 1.8 on the CPU, especially with stock cooler.
 

Sanius

Member
Dec 25, 2004
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okay guys. few questions

1) to overclock, I just bump the fsb to 200 mhz, then boom, instant 3200+?
2) what should the tempature be at when I should be worried?

I have asus probe, so i can play games and such and monitor the tempature.
 

ts3433

Platinum Member
Jun 29, 2004
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1. Yes.

2. My mobile 2400+ is about 35 C at idle and 43 C at load (overclocked to 11x200 with 1.55V). You'll probably get temps a bit higher (no AS5, stock HSF, desktop chip) than that, but as long as you're not constantly in the high 50s you should be OK--Bartons are actually rated to go up to about 85 C. You probably don't want to go above 60 or 65, though.
 

Amaroque

Platinum Member
Jan 2, 2005
2,178
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I had a Barton 2500+ clocked to over 2.3GHz, retail HSF, A7N8X-E Deluxe. I forget what voltage (I think 1.7v or 1.75v). Prime95 would crash at about 62-65c (summer time on the 2nd floor).

The CPU is still running in a different computer, still at 2.3GHz.
 

Sanius

Member
Dec 25, 2004
121
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alright guys.

I made the fsb 200 mhz, saved it and rebooted, and it was just black. did nothing, I shut it off, powered it back on, it booted up. woo, good. but it said the AMD was running at 1100mhz, and the FSB was still at 200 mhz, and the multiplier was still at 11x. should I move on and test it with some games/memtest?
 

ts3433

Platinum Member
Jun 29, 2004
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Maybe it defaulted to 11x100, which is 200FSB (DDR bus). 200MHz FSB is 400FSB, etc. Some motherboards will display these things differently. You need to manually set your proc back to stock speed (11x166), and then gradually increment the FSB, raising VCore to values not exceeding 1.75 if you can't boot. Also make sure your RAM can handle this.
 

bobsmith1492

Diamond Member
Feb 21, 2004
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What kind of ram do you have? If it's PC3200, it should be no problem - if not, you'll have to see what it can do.
 

Sanius

Member
Dec 25, 2004
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alright. it didn't work fine, so I thought, screw it. i'll just take the leap and go to 64-bit. I know this is off-topic, but i'll post it here.

I found this motherboard: http://www.newegg.com/app/View...tion=13-128-274&depa=1 for $83.

or this one: http://www.newegg.com/app/View...tion=13-152-052&depa=1 for $72.

now, the $72 one supports 4x ata 133 drives (which is good for me), and 4 slots for ram. but the $83 one only holds 2x ata 133 drives, and costs more. but the chaintech one has 2 stars from 2 voters. so should I really trust it?

and this cpu: http://www.newegg.com/app/View...tion=19-103-499&depa=1 for $151.

now, the problem is, it's OEM. so will it not come with a heatsink? would my 2500+ stock heatsink run on it?

 

ts3433

Platinum Member
Jun 29, 2004
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I don't think your AXP heatsink will work; the retention mechanism's probably different, and it's not designed for that type (unlike, say, a Zalman 7000A). You can probably get a retail Winchester 3000+ for about that same price, though, especially if you shop around (MWave seems to have some of the better prices on CPUs and boards; also check ZZF, Monarch, and ExcaliberPC). If you want a quality S939 mobo, you will have to pony up at least $100 (Epox EP-9NDA3J, NF3 Ultra chipset). Good S754 mobos can be found for $75, though, like the Chaintech VNF3-250 (NF3 250 chipset), and even better ones for about $110 (DFI Lanparty NF3 250Gb; some will say there is no equal to this board on the S939 platform yet). Stock cooling for A64s is quite good, thanks in part to the pre-applied Shin-Etsu thermal grease.
 

ts3433

Platinum Member
Jun 29, 2004
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Yeah, if that can't handle the overclock, you'll need to use a divider, and this may cost you a bit of performance on an AXP. It would make little difference on an A64, though.
 

nick1985

Lifer
Dec 29, 2002
27,153
6
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Originally posted by: Sanius
pc-2700

thats why your computer didnt boot with pc-2700. you need pc-3200, unless your 2700 can overclock, which it probably cant