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Oc athlon X2 4800+

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November 20, 2009 4:23:50 PM

hello, i just bought xigmatek red scorpion and oc my AMD atlon X2 4800+ from 2.5 to 3.0( clock 200 to 240, 12.5 multplyer) . first i just let voltage at 1.32v. but when i run orthos, it stop after 3 mnt with 100 warning. then i rise the voltage to 1.35 and leave with orthos running . bot BOD appears.
then i increase voltage to 1.37, orthos run ok, but sometimes my pc just shut down witout any warning.
can someone help me what do i need to do to stabilize my rig??
is adjusting clock and voltage is enough??or do i need to adjust anything esle??

More about : athlon 4800

a b K Overclocking
November 20, 2009 5:30:37 PM

what motherboard do you have? Please post the rest of your specs =)
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November 24, 2009 3:14:26 AM

abit ax78 motherboard
ati HD3650 ddr3 512
kingston value ram 800mhz
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a b K Overclocking
November 24, 2009 3:36:49 AM

try lowering your FSB to at least 230 and see if it crashes again. Your FSB might be too high. Did you set you ram timings to the motherboards specified settings?
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November 24, 2009 2:12:04 PM

i do not alter anything for the ram. do i have to??
and also with the HDT1283, i intended to push my cpu to 3.3, is that possible?? because as i observe the temperature is not a problem.. for 3.0 with 1.37v, temperature only reach 58.5c and my cpu limit is 72c...
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a b K Overclocking
November 24, 2009 3:10:20 PM

Well the first thing you need to do before you overclock is make sure that your RAM timings and voltage are correct. As far as overclocking goes, you should be able to get at least 3.2Ghz with decent temps using that cooler. I would not let the CPU go over 65c.
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November 25, 2009 12:30:15 AM

alright, i'll check it out..
need to maintain the RAM ok, emm, be right back..
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November 25, 2009 6:33:07 AM

OvrClkr said:
Well the first thing you need to do before you overclock is make sure that your RAM timings and voltage are correct. As far as overclocking goes, you should be able to get at least 3.2Ghz with decent temps using that cooler. I would not let the CPU go over 65c.


i dont know how to make sure my RAM timing and voltage are correct. if i decrease te RAM timing, it will display that my cpu frequency is too high. even if i cont it will reset my cpu clock to default (200MHz). now, my best stable test oc cpu is 240mghz with 12.5 multiplier and 1.375v. total clock is 3000mhz. but if i lower the mutiplier and increase the clock to get same output which is 3.0Ghz. let say 300mhz*10multiplier, it also display same error. .
i dont know what else to do. please help me..


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a b K Overclocking
November 25, 2009 6:58:46 AM

Lower the FSB to 220 and raise the multiplier till you get 3.1 or 3.2Ghz and leave the voltage at 1.375v.

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November 25, 2009 7:02:43 AM

my max multiplier is 12.5...
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a b K Overclocking
November 25, 2009 1:20:22 PM

yea my bad....

if your system crashes with the bus at 240 the only way to attain a stable system is to lower the bus in increments till it becomes stable.

how much ram do you have? 2Gb or 4GB?
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November 25, 2009 4:29:28 PM

OvrClkr said:
yea my bad....

if your system crashes with the bus at 240 the only way to attain a stable system is to lower the bus in increments till it becomes stable.

how much ram do you have? 2Gb or 4GB?


5-5-5-18 2Gb 800mghz kingston..
my system now stable at 240 with 12.5 mltplier, 1.375v. i also increase nb/sb, PCI and PCIE clock to 120mghz. that is my highest stable system setting..
i also try to change HTT multiplier setting from auto to 3x or 4x. but system became a little bit dizzy, sometimes it crash and sometimes boot failure problem..
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November 25, 2009 4:37:03 PM

the thing that i dont understand is im using 800mghz DDR2 RAM, and i think i can increase my fsb up to 400mghz rite??
but why the system does not accept if i put fsb more than only 240mghz??
even when i lower the multiplier and increase fsb that reach same amount of total stable clock i get b4, 3Ghz.....
uhhhh...it give me some kind of headache to understand...
please help me..
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a b K Overclocking
November 25, 2009 5:02:17 PM

well it looks like you reached your threshold, the only way to overclock your CPU is by raising the FSB and voltage. If it caps out at 240 then that is as far as it will go, you might be able to raise the FSB a bit more with 2 extra GB's of ram but the performance increase is not worth the cost. Mu suggestion would be to invest in a new CPU with an unlocked multiplier. Something like an x2 550 or better yet x3 720...

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a b K Overclocking
November 25, 2009 10:44:54 PM

400MHz on the FSB is more inline with an Intel set-up. A typical FSB speed for a platform like yours (AMD) is between 220-260, depending on RAM ,MoBo, ect.... Looser memory timings may help, but not always.

As OvrClkr stated your pretty much at the limit of your OC. I would not recommend spending more money on that system to boost performance. As it is older technology and the money would be better served to build your next machine.
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a b K Overclocking
November 25, 2009 11:49:43 PM

yea I just wanted him to know that that a new CPU will be able to squeeze more life into that PC.
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November 29, 2009 10:05:34 AM

emm, ok. i think that is my limit. i need to upgrade my system to gain more. so, my next aim is better cpu. thanks everybody, i really appreciate all your effort to help me. expecially OvrClkr, thanks a lot to let me know about my cpu limit..
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a b K Overclocking
November 29, 2009 5:39:12 PM

my pleasure =)

let us know if you need any help choosing a CPU that fits your budget.....
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November 30, 2009 2:39:23 AM

ok, i wanted to buy phenom II x4 blk ed. but it seems that that knd of cpu with AM2+ socket is hard to find today. i need to hurry...
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a b K Overclocking
November 30, 2009 4:14:00 AM

AM3 should work in your AM2+ board, socket compatability is part of AMDs strategy.

Editted out Athlon Ii suggestion as it lacks BE editions.
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December 30, 2009 4:33:56 PM

JofaMang said:
AM3 should work in your AM2+ board, socket compatability is part of AMDs strategy.

Editted out Athlon Ii suggestion as it lacks BE editions.


Jofa,

My current board only accepts Athlon 64 X2 / Athlon 64 FX / Athlon 64 / Sempron. According to your last statement, does that mean I can possibly install AMD II X2 on my mobo?

here are the spec on my mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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a b K Overclocking
December 30, 2009 4:44:01 PM

mnijee said:
Jofa,

My current board only accepts Athlon 64 X2 / Athlon 64 FX / Athlon 64 / Sempron. According to your last statement, does that mean I can possibly install AMD II X2 on my mobo?

here are the spec on my mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

It should be noted that starting your own threads for your own questions is proper manners on these forums, and some people get upset with their threads being piggybacked by others. But, you had an easy question, just letting you know for the future, and in case anyone gives you grief over it. :D 

I found a compatability list for your Mobo:

http://www.cpu-upgrade.com/mb-ECS/KA3_MVP%28V1.0A%29.ht...

It is not an absolute rule, but with Bios updates, often am2 can use a large amount of the am2+ range, while an am2+ can often use much of the am3 range of processors. AM2 boards will not work with am3 at all, afaik.
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January 6, 2010 4:04:04 PM

as the owner of the thread, i dont mind of mnijee question, coz its help me too.. :) 

but jofa, my mobo is Abit AX78 with am2+ 940 socket. can AM3 processor fit in my mobo by updating bios?? any referrance for this??
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a b K Overclocking
January 6, 2010 6:41:46 PM

exceeda88 said:
as the owner of the thread, i dont mind of mnijee question, coz its help me too.. :) 

but jofa, my mobo is Abit AX78 with am2+ 940 socket. can AM3 processor fit in my mobo by updating bios?? any referrance for this??

http://www.abit.com.tw/cpu-support-list/mb/amd770_ax78....

Official CPU support list, max seems to be Phenoms, not Phenom IIs. Some appear to have had success with the few AM2+ Phenom IIs that exist (like the 940 i think) but they are not officially supported.
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