Can a Tbred A run at 166fsb?

[Bojax]

Without being modded?

I have an XP 1700 tbred A

 

[Cerb]

If it can reach the clock speed yes.
133 to 166 is a 25% increase in the FSB. w/o modding or changing the multipliers, that's a 25% overclock.
The likelihood is that it will make it just fine.

 

[cmaMath13]

Yes.

It's more a question if you motherboard can run 166MHz FSB and it is helpful if your cpu multipliers are unlocked.

 

[Insidious]

I don't think a T-bred A is going to get there unless you have unlocked the multiplier and can lower it.

-Sid

 

[mrzed]

Mine does just fine.

I can't see why unlocking the multiplier should be needed. As posted earlier, it's only 25%. Mine does it easily 11x166 = 1825 Mhz. I've had mine running at 1870. I could probably reach higher but my board tops out at 1.6 volts. Obviously you'll need the RAM to go with it, and it helps if you have the 1/5 PCI divisor so you don't need to worry about going out of spec.

 

[hdeck]

it can, your agp/pci cards/ram might not be able to handle it.

 

[Coalfax]

Originally posted by: mrzed
Mine does just fine.

I can't see why unlocking the multiplier should be needed. As posted earlier, it's only 25%. Mine does it easily 11x166 = 1825 Mhz. I've had mine running at 1870. I could probably reach higher but my board tops out at 1.6 volts. Obviously you'll need the RAM to go with it, and it helps if you have the 1/5 PCI divisor so you don't need to worry about going out of spec.

1700 dont need a multiplier unlock as they are alrewady below the 13x multiplier. The trouble starts in when you get the 2100 and up Tbird A chips. You just cant take the FSB that high anymore as most motherboards just arent happy that high. ( YMMV depending on motherboards )

I have a Tbird 2200 that I couldn't even get the FSB ( AN78X Mboard ) to go over 145 when it was at its default of 13.5x. The wire trick helps loads and I am now at 10x 180FSB. I want to see it stable before I start messing with things more obviously. Right now I am just keen on the fact that my FSB is 180 And yes, I have 400MHz ram so I can try to shoot for 200 if I desire, but why take the chance of burning up the North bridge?

For the wary, Nforce boards normally have the option to lock your AGP MHz range ( locked mine at 66 no matter what ) so you dont need worry about divisors or the like.

 

[Bojax]

This will be the board I am buying to go with the Athlon XP 1700 Tbred (A). That is why I inquired. I will get some samsung ddr 2700, was wondering if I could safely set the fsb at 166mhz.

 

[ScrapSilicon]

Soltek SL-75FRN-L @ AthlonXP.com

 

[mrzed]

You should have no problems. I'm sure there must be 1700+ CPU's out there that can't, but I would imagine they are rare.

FWIW, my other post was in reply to the poster's question. Of course a higher rated Tbred A will have less chance of reaching higher FSB, simply because it is closer to reaching the limits of that particular core revision. That's why us cheap OC'ers like the low end of the range: more headroom (in general).

 

[Bojax]

Here at CDRlabs They are benching the 1700 tbred A with the Soltek mobo I ordered. He is getting some pretty good overclocking out of it. So the Tbred A will be fine.

 

[Brian48]

My 1700XP Rev B overclocks slightly better than my Rev A, but it's still pretty good nevertheless. It's currently running at 11x166mhz (actually 167mhz) and boots up as 1833mhz. I did have to bump up the voltage to 1.70v in order for it to be stable though. Initially had it running my with 8rda, but moved it onto my older 8k3a later. Unfortunately, even with the nForce2 board, I still had to do the "wire trick" in order for it to work with the lower multipliers. Don't have this problem with the Rev B.

 

[formulav8]

The one I had did just fine.