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Need help overclocking an XP, just few tips!

S

Shogo

Limp Gawd
Joined
Jun 1, 2004
Messages
389
Hi guys so i bought an AMD XP 2800+ with a MSI KT6V-LSR (Via KT600chipset) and 2 sticks of 512ram rated PC3200 (cl3-3-3-8)

The original FSB for this cpu is 166mhz x 12.5 = 2.08ghz.

The HSF on that is a Volcano 9 but i dont have the fan controller to change speed. The temps are a bit high (Mobo 39c - CPU 49c) *i dont think the temps are accurate because i dont see how my mobo can be 10c less then my CPU*

here is how i proceeded:

First I dropped Default Vcore of 1.65 down to 1.55 at stock speed too see what was the minimal vcore i could get to lower the temps a little bit. 1.55v is the minimum i can go.

Then i wanted to go 2.2ghz to reach 3200+ speeds but i can only boot to windows with 176x12.5.If i play games it is not stable.If i change the multi down to 11x200 (to run memory and FSB 1:1) it wont POST.

Right now im at 172x12.5 =2151mhz stable
Do you think 151mhz OC is satisfying, i really dont know what i can get out of this chip. I also assume that raising my FSB too high on this crappy mobo can be harmful because there is no AGP/PCI lock. Does that mean that by raising my FSB im overclocking my AGP card also up to 172mhz ? What is the default speed of an AGP port. And what do you guys think a should stop eheh.

Finally i thought maybe i could screw a bit the 1:1 multi i wanted to reach and lower the ram speed down to 166mhz to be able to get 2.5-3-3-7 (do you think its better 166mhz at those clock or 200mhz with cl3-3-3-8 ?

And yes i know the heatsink should be reseated im just too lazy to buy thermal paste. This was a computer i bought at a backyard Sale ehe.

Help me if you can! Thank you
 
> " Does that mean that by raising my FSB im overclocking my AGP card also up to 172mhz ? " <

No, that depends on the divider you are using. Let's say you have a 3:1 divider. That means
the system bus (=33mhz) changes 1mhz for every 3mhz you increase the FSB. You do the math.

What I am saying is, your expansion cards may not be able to handle the increased speeds.

Very good chance your CPU has a locked multiplier (x12.5). In that case all you can do is
up the FSB speed. But then you are limited by what the expansion cards can handle.

This is how the PCI/AGP lock on the nForce2 board makes OCing easier. Even with a locked
multi you can still up the FSB without affecting the sys bus. Couple that with an older
unlocked CPU, or a newer mobile CPU (no lock) and you have an overclocking monster.

> " Finally i thought maybe i could screw a bit the 1:1 multi i wanted to reach and lower the ram speed down to 166mhz to be able to get 2.5-3-3-7 (do you think its better 166mhz at those clock or 200mhz with cl3-3-3-8 ? " <

Hard to say which would give better performance. Run some benchmarks & see which
setting gives the best scores.
Even if your system runs at 200fsb your sys bus is also OCed which may put undue
stress on your expansion cards. So take that into consideration.

Hope all that helped. :)
 
Thanks Alot for your constructive answer ehhe.

Unfortunatly This motherboard was kind of made for "non-oc users" so i cannot set any Divider. I think this means that i should not push it too far, ill probably keep it like that, 172x12.5 = 2150mhz. For the ram, ill do the tests. For the multi, I think i can unlock it some way, i dont really have the time to check right now but im sure ive read somwhere on this board a technique to remove the lock on the multi.

Ill to the test and post it here
 
First off your chipset sucks ballz to OC. Get yourself a Nforce 2 board. like the Abit NF7-S V2, then you will see some OCing.

I got my 2500+M to 2.6 Ghz on a SI-97 with a NF7-S V2.
 
i was just suggesting to hime, if he wanted to OC, get a nForce 2 board.
 
I have a Thouroughbred 2700+ running at 2.3GHz on an ASUS nforce2 motherboard. All of the lower mulitipliers are UNlocked. Stock multiplier is 11.5 I believe. I'm running mine at 10.5 with the ram at 220. How this helps.

Lyquist
 
Well, voltage is the single most important thing that will affect your maximum overclock, and stability. However, this is at the cost of heat and possible processor death. Don't lower your vcore. Since you don't have a memory divider, and you have generic ram that probably won't take a high FSB, you're out of luck. Either get a new board, or live with what you can get right now. Also, take the time to reseat the damn heatsink and buy a tube of arctic silver 5, it will last you forever.
 
Because this computer has been bought as a gift for my little brother to replace his old p3 800mhz, i dont want to put money in that comp ehe, Maybe just reseating the heatsink would be a good idea if i want to extend the life of this little baby. But anyways im pretty happy with the results i got,its only a 150mhz OC but i can see it another way: im 50mhz near the 3200 speeds and i have a 2800! ahah. And im more then happy with the performances i got from that computer. Ive paid 500$ CND for that computer witch is around 400$ USD for The full system (Amd XP 2800, 1gb of crappy ram, 2 Maxtor 80gb Hard disk in raid 0, volcano 9 HSF, 2 other crappy fan, 1 crappy generic 400w PSU, and one economy case mid tower, and one firewire controller pci card. Im sure you guys will say that it isnt a really good deal because you can all get the same stuff for like 300$US but in canada the hardware is more expensive :(


Thanks anyway for your suggestions and thanks for the salt in my wounded crotch
 
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