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Help me overclock this AMD 1900+ (single core) and Nforce 2 board?

iMacMart

iMacMart

iMacMart

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Hi guys

As above a friend has this old system and its running at 1.6 atm but I'm sure it can do more? Shall I just up the fsb? If so what is this thing capable of so I have something to head towards?

Plus should I up the volts at all? I have a C2D system but I'm not familiar with this board or bios? I will have a bash though :D

Any pointers please?
 
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Do u have any idea what type of core it is (palomino, thoroughbred etc).

That will tell you a bit of how far it can go, thoroughbred were very good at o'cing.

Otherwise, upping the FSB is a start, what is the stock FSB, 166?
 
Ok it's a 1900+ thoroughbred, Socket A, bus speed is 200 and I think the multiplier is set to 8 if I remember rightly?

So I may be able to push the multiplier up (if I knew its limit) and work from there? Not sure what save vcore is for this bad boy?
 
Going by the spec i think ppl were able to get a good 250FSB out of it, as long as mobo and RAM can handle it.

Voltage wise, the stock on those was about the 1.6v iirc (correct if wrong). Just keep an eye on the temps if ** gonna increase the voltage, it should be able to run good up to about 55-60 degrees.

Back then the AMD CPUs didnt have speed throttling built so they would cook.
 
Ok I'll put it on the highest multiplier and then work my way up with the fsb :)

What sort of overclock can these things go to? 2.0 - 2.2?
 
The stock FSB is 133MHz, the stock multiplier is 12.

This will be either a Palomino or a Thourghbred A or a Throughbred B - basically it could be anything apart from a Thorton IIRC the Thorton was never binned as low as XP1900.

Open up CPU-z and see what it says, TBred or Palomino. From the stepping code you can tell if it's a TBred A or B.

What memory does your system use?

What revision is your NF2? Some of the earlier NF2's couldn't reach 200MHz FSB without modifications. What Board is it anyway?

Some of the Palominos were multiplier locked, some weren't. AFAIK the XP1900 wasn't ever made after week 31 2003 so if it's a TBred it should be multiplier unlocked.

Palomino was produced for a long time, the earlier one's will struggle for 1.7GHz the later ones (AGOIA in particular) will often exceed 1.9GHz on good air cooling. If it's a TBred-A 2GHz is good, TBred-B range from 2 - 2.5GHz. If it's a TBred B and it's a DLT3C you should be looking towards the higher end, DUT3C possibly more towards the lower end.

Stock Vcore could be anywhere between 1.75v and 1.5v depending what type it is.

This is just guessing, you need to post more information :)
 
Morning, well its not my board its a friends :)

I will be going there after work tonight but from what you have mentioned above I think I should be able to clock it up a bit more than 1.6ghz!

I'll put the mutiplier to max and drop the FSB to 180 maybe and work my way up from there :D

Thanks for the pointers guys ;)
 
The Thoroughbred cores backfilled the entire range which is why the XP1700 DLT3C was one of the greatest overclocking chips.

If it's a Thoroughbred A/B, the NForce 2 chipset will (should) unlock the CPU's multiplier, meaning you can play to your heart's content.

The chip will have a 133MHz FSB (266MHz DDR) and as stated, the original issue of the NForce 2 chipset struggled to get to 180FSB due to inadequate northbridge voltage. If it's a second revision, the chances are that 200MHz will be readily obtainable, although you may need the L12/L13 pin mod to persuade it to go to the highest levels.

250MHz was rarely acheivable for the most part because only one or two boards would go up there without significant modification (DFI's Lanparty springs to mind) and expensive DDR RAM. Often there was little point due to the massive latency of high-speed DDR DIMMs that just knee-capped the chips' performance, anyway.

The Abit NF7 was another board that could - on occasion - be persuaded up that high, normally because it was so readily modified (northbridge voltage often need pencil-modding to get it to increase beyond the BIOS limit). The Gigabyte board of time was also good, but the same applied. Pretty much anything else was reasonably limited.

Always remember with overclocking the XP series of chips: memory latency is more important than memory speed and the memory should be kept at the same data rate as the FSB. Put them out of kilter and watch the performance plummet.

Of couse, all these are subject to what your mate's board and memory are up for. If it's an OEM PC, then good luck. If not, you may be in with a chance.
 
Are the golden age of nforce2... anyway you can unlock the chip if the board wont play ball.

Remove the chip and look for the L3 bridge number 5. use a high graphite pencil to reconect the bridge and the multiplier is fully unlocked. you can then set the multiplier in the BIOS or you might have to set a jumper on the motherboard.
If i remember it looks somthing like this.


L1
" " " " "
1 2 3 4 5

L3
" " " " "
1 2 3 4 5

this the bridge, you need to pencil round the cut in the L3 number 5 bridge

will try to post some pic's for you later.
 
I'm telling you he has a Palomino.

I could be wrong and they did make a t-bred 1900+ but i'm 90% sure they didn't.

If you can post a link to a review of a T-bred 1900+ i'll admit defeat :)
 
Reality|Bites said:
It is a Palomino core, Thoroughbred started with the axp 2000+

I could only overclock mine to 1.7Ghz when I owned one.
Click to expand...

Tbred technically started with the 2200+ if i remember right ;) Have had 1700+ and 1800+ Tbred Bs as well, definetly had a 2000+ Thorton at some point and have seen 1900+ Tbred in OEM rigs, i think HP.

http://www.overclockers.com.au/image.php?pic=techstuff/a_amd_tbred/wcpuid1.jpg - supposedly an ES 1900+, notice its a model 8.

On this page : http://forums.extremeoverclocking.com/showthread.php?t=125165&page=3
1900+ AXP 1.6GHz Palamino -------- 1.75
1900+ AXP 1.6GHz Thoroughbred A -- 1.65
1900+ AXP 1.6GHz Thoroughbred B -- 1.65
 
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