OC Amd 2500+ help [Archive] - techPowerUp! Forums

wazzledoozle

12-30-2004, 10:57 AM

I have finally bought a motherboard capable of 400 Mhz front side bus (Abit NF7-S v2) and I want to OC my 2500+ to 3200+ hopefully. Any tips would be greatly appreciated. I have a pretty nice solid copper heatsink with a 4500 rpm fan, and arctic silver 5.

I will also be OC'ing my ram at a later time, it is Corsair XMS PC2700 512 Mbyte and has a heatsink, and I have heard it is capable of PC3200 easily.

fr33ze

12-30-2004, 11:27 AM

just drop the mulit and up the front side bus to see if it'll handle 200, everything should be able to. when youv found the best fsb you can get play around with the mulity again and go for maximum overclock. dont forget to up the voltage to the ram, cpu and the chipset voltage.

out of curiosity, you say your planning to overclock the ram at a later time as well, does that mean your not gonna do that at the same time because im sure you know theres no point in running the memory async so you might as well just overclock them both at the same time.

wazzledoozle

12-30-2004, 09:13 PM

I was going to lock the memory frequency at 166, is that even possible? hmmm

rcecola

12-31-2004, 01:31 AM

on my board i just set the fsb to 200. i did not need to adjust the voltage to run at 3200. the processor works like a charm.
how old is the 2500? the newer ones are locked.

nightelf84

12-31-2004, 04:22 AM

I was going to lock the memory frequency at 166, is that even possible? hmmm

memory frequency can be locked at 166... you just need to use the proper ratios... but, it is best that you run ur memory in sync with ur fsb.

wazzledoozle

12-31-2004, 09:22 AM

on my board i just set the fsb to 200. i did not need to adjust the voltage to run at 3200. the processor works like a charm.
how old is the 2500? the newer ones are locked.
I got it one year ago, it is multiplier locked :(

What is a safe voltage for the CPU if I cna not make it to 2.2 Ghz? The bios options on this new motherboard are godly :D :D

nightelf84

12-31-2004, 11:42 AM

Safe voltage is +10% of stock voltage. Keep an eye on the temp

fr33ze

12-31-2004, 03:23 PM

never run your ram at anything other than 1:1 on amd xp boards, you will never gain anything from it and generally loose out, theres just no point.

can't remember what the stock voltage is on the 2500 but you can run them at 1,75-1.8 volts happily 24/7 so long as youv got a decent cooler.

wazzledoozle

12-31-2004, 11:39 PM

What ratio would I use for running the ram at 166 mhz, and the FSB at 200 mhz? I want to make sure my CPU can do 2.2 Ghz without risking my ram.

nightelf84

01-01-2005, 02:04 AM

What ratio would I use for running the ram at 166 mhz, and the FSB at 200 mhz? I want to make sure my CPU can do 2.2 Ghz without risking my ram.

A ratio of 6:5 will have your ram running at its stock 166mhz when ur FSB is at 200. Remember that DDR Ram will mean that 166x2 = 333mhz

wazzledoozle

01-01-2005, 04:57 AM

A ratio of 6:5 will have your ram running at its stock 166mhz when ur FSB is at 200. Remember that DDR Ram will mean that 166x2 = 333mhz
Thanks, I know about DDR though.

In the bios there are matching ratios for every number set, like 1:1 and 2:2 and 3:3 etc along with other non matching sets. Will a 6:6 ratio be any different from a 1:1? From a mathematical standpoint it wouldn't, but do the numbers reflect upon what they represent? Like will a 6:6 ratio affect the CPU's speed while matching the ram to it?

nightelf84

01-01-2005, 06:29 AM

Mathmatically it wouldn't... but over at nForcersHQ, abit users recommend 6:6 or 3:3... personally, i would think that there wont be any difference...

Clubvibe

01-01-2005, 05:12 PM

hi . I have a Barton 2500 ( i don't know if it's locked or not) and i have an Asus A7V600 mobo with 512 mb 2700 Memory.

I've read that a barton 2500 is easily turned into a barton 3200 but you'll need 3200 Ram for this OC (cause then you can easily turn the FSB to 200) but i've got 2700 ram (which means it works on 333mhz) . Is it still possible to OC my barton with 2700 RAM ?! and if so what would be recommendable? (i use the normal boxed heatsink and cooler) does any of you now a nice ratio to set my multiplier and FSB (and maybe volts, but I'd rather not use the volts cause of the heat)

(sorry for the english ;))

ReconCX

01-01-2005, 07:47 PM

what can I do w/ a 2800+? =)

wazzledoozle

01-01-2005, 10:08 PM

what can I do w/ a 2800+? =)
Great things :D

3200+ at least

wazzledoozle

01-01-2005, 10:09 PM

rcecola

01-01-2005, 11:38 PM

never run your ram at anything other than 1:1 on amd xp boards, you will never gain anything from it and generally loose out, theres just no point.

fr33ze is right try to keep the ratio at 1:1 by overclocking your ram and relax memory timings.

wazzledoozle

01-01-2005, 11:41 PM

fr33ze is right try to keep the ratio at 1:1 by overclocking your ram and relax memory timings.
I know. I just want to see if the 2500+ can be OC'd to 2.2 ghz without risking my ram. If it is stable at 2.2 ghz then I will oc the ram, which I previously tested at 200 mhz, and it booted into windows and was stable with games etc. so im nto worried about it very much.

nightelf84

01-02-2005, 02:24 AM

Don't think the stock cooler will be sufficient to handle 3200+ speeds... A cheap but much better alternative is the CoolerMaster Aero7 Lite CPU Cooler.

rcecola

01-02-2005, 05:18 AM

i replaced my stock cooler with a thermaltake silent boost to run at 3200

ReconCX

01-02-2005, 07:46 AM

Great things :D

3200+ at least

ooo i'd hafta get a new mobo for that tho... heh. gonna go read up on it.

wazzledoozle

01-02-2005, 07:47 AM

Oh im not using the stock cooler. Its an Aerocool Hercules, solid copper 4500 rpm. Its suppposed to be 4000, but it runs at 4500.

eMO

01-03-2005, 01:31 PM

I have tried my barton 2500+ (0317) to 243*9.5 with the defult voltage.
And I use corsair XMS PC3500(Winbond BH-5)@CL2-2-2-10@3.1V
I am using Alpha 8045 cooler for my CPU.
May be this may helps you

Nobru_rv

01-05-2005, 03:57 AM

I have tried my barton 2500+ (0317) to 243*9.5 with the defult voltage.
And I use corsair XMS PC3500(Winbond BH-5)@CL2-2-2-10@3.1V
I am using Alpha 8045 cooler for my CPU.
May be this may helps you

1. U have 3500 ram,he has 2700.Big difference.
2. c2,2,2 he cannot get on stock voltage on ddr400

@Wazzle
Just choose 200fsb. VDIMM choose 2.7V,cpu is default 1.65 and dont change it.And just one more thing. I assume your corsair wouldnt get 2.3.3.6 on 400fsb with 2.7V so just choose 2.5,3,3,11 and enjoy it. Later you can try 2.2.2.5 on 3.3 volts etc etc.

@ReconCX

You wont get much on your 2800+ because you probably have locked multi to 12.5. So if u put it to 200fsb it will go up to 2500MHZ and i dont think that your 2800 will go. MAybe with 1.9V but i dont think so.Barton 2500+ is the best socket A oveclocker. Also the mobile version is even better.

wazzledoozle

01-05-2005, 05:11 AM

Mobile 2400+ is pretty good also, barton core.

eMO

01-05-2005, 06:49 AM

Mobile 2400+ is pretty good also, barton core.
AXP-M 2500+ is the best, Someone can overclock that to 2.8Ghz.
35sec finish 1M superpi

wazzledoozle

01-05-2005, 08:10 AM

eMO

01-05-2005, 08:13 AM

w00t

I just selected 3200+ in the bios, and put the cpu core at 1.7 volts and I booted into windows. The ram was overclcoked because I forgot to change it, but it seems to be fine. Now to test it. Is prime95 the only thing I need?
Prime 95 can check if your system is stable or not.
I recommend you run it if you want to keep OCing all the time

fr33ze

01-05-2005, 02:00 PM

prime 95 and looping any 3dmark is the best method, i've had prime 95 run fine for hours but as soon as i try and run 3dmark it craps out so both are needed really.

wazzledoozle

01-06-2005, 07:42 AM

Wow, running at stock voltage of 1.65 now instead of 1.7, and I havent had any errors with 3dmark03. Ive run the "torture" test in prime 95 for 1 hour and 2 minutes with 0 errors and 0 warnings. Do I need to run it longer? 3dmark03 doesnt have any errors, though I cant loop it because I dont have full version.

Nobru_rv

01-07-2005, 02:29 AM

1 hour is enough.
Now only thing that remains is to check if your RAM goes to 2,2,2,5 or 2.5,2,2,7. U need to play with VDIMM also. Put it at 3.0 V and try 2,2,2,5. If it boots and satable then try 2.9V etc etc.

wazzledoozle

01-07-2005, 04:13 AM

I left it running for about 3 hours with the prime95, and when I came back my comp had completely locked up not even the mouse would move. Will prime95 eventually crash a system from overloading it? No error was recorded in the log.

Also, can prime95 test for ram errors?

YohanN

01-07-2005, 08:15 AM

Prime 95 does RAM testing anytime torture test is running, but there are options - you may choose to test harder CPU (less memory used) or RAM (max mem used) or both (almost equally)
And what about that hang-up - have u increased ur northbridge voltage (Vdd) ? At least 1,8V is an absolute must for ocing on nforce chipsets :rolleyes:
And, remeber, that Prime 95 once hangs on any system /desktop - dont talk about servers/, no matter how stable, just problem of statistic - when using non-ECC RAM an error must occur once - only question is in which term of time...... ;) but lets talk about terms of 24 hrs and more, 3 hrs is not enough - IMHO ur sys is not absolutely stable, but
dont forget that ur sys performs 100% output all the time Prime runs, normal use - even newest games will never do so

hopefully u understand my poor eng :eek:

wazzledoozle

01-07-2005, 11:30 PM

Thanks. Your english is actually good.

Though im not overclocking the northbridge, the NF7-S v2.0 is designed to handle 400 mhz fsb.

Nobru_rv

01-08-2005, 11:22 PM

No need to raise voltage of your NB.When u start OCing your Barton properly (i mean 220-240 fsb ;-)) then u will need to raise it. Try putting 1.7V on your CPU. Maybe you have a cpu that doesnt work 100% stable on stock voltage. YOu checked if your MBO undervolts maybe? Check it with cpu-z or similar.