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Will most XP-M 2600+ chips hit 12.5x200?

BlueWeasel

BlueWeasel

Lifer
I've currently got a Epox 8RDA board that doesn't like anything over 182 FSB. I've got a XP-M 2600+ in it that's running fine at 12.5x182 on 1.65v. I'm thinking about getting a used Epox 8RDA3I off the FS/FT forum from a buyer who has sent me screenshots showing the board does 200 FSB on his mobile chip.

The question I have is can I expect my 2600+ mobile to run at 12.5x200=2.5ghz? I've got a TT SilentBoost cooper heatsink on it with a L1A 80mm fan on it right now. Since I'm still running PC2700, I doubt if I'll be able to go much higher than 200 FSB because of the RAM.

Is shooting for 12.5x200 with the 2600+ reasonable or will I likely have to lower the multiplier?
 
i think 12.5 x 200 is doable with the AXP-M 2600+

you may have to bump the voltage a lil but other than that looks good...

if i were you look for an abit nf7-s if possible in the fs/ft forum or the shuttle an35n (i think) both use the nf2 chipset
 
Yeah, the 8RDA3I also uses the NF2 chipset (it's basically the 8RDA3+ without the 2nd LAN port and firewire). I've been looking for the Shuttle and Abit boards, but apparently not many are selling them on FS/FT. 🙂

I expect I'll have to bump my voltage up to 1.75/1.80v to be stable at 12.5x200, but I just want to know if it's reasonably possible.
 
The XP-M chips are unlocked. Instead of going to all that time and effort and money, why not just increase the mulitplier?

182 * 13 = 2366
182 * 13.5 = 2457
182 * 14 = 2548

You could also decrease your memory a bit if you think that is what is holding you back and then increase your multiplier more.

My point is, that unless you are doing something that absolutely NEEDS that extra 18MHz of memory speed, you could get close to the same performance by just changing your multiplier.

Joe
 
Originally posted by: Netopia
The XP-M chips are unlocked. Instead of going to all that time and effort and money, why not just increase the mulitplier?

182 * 13 = 2366
182 * 13.5 = 2457
182 * 14 = 2548

You could also decrease your memory a bit if you think that is what is holding you back and then increase your multiplier more.

My point is, that unless you are doing something that absolutely NEEDS that extra 18MHz of memory speed, you could get close to the same performance by just changing your multiplier.

Joe
Click to expand...

the bandwidth gained from running 200 mhz over 182 mhz is worth it IMHO.

you'll notice an increase in performance in real world aps and even benchmarks
 
Originally posted by: Netopia
The XP-M chips are unlocked. Instead of going to all that time and effort and money, why not just increase the mulitplier?

182 * 13 = 2366
182 * 13.5 = 2457
182 * 14 = 2548

You could also decrease your memory a bit if you think that is what is holding you back and then increase your multiplier more.

My point is, that unless you are doing something that absolutely NEEDS that extra 18MHz of memory speed, you could get close to the same performance by just changing your multiplier.

Joe
Click to expand...

Great idea, but the full range of multipliers are only offered on a couple Abit and DFI boards. The rest of the Nforce2 boards (Shuttle, Epox, MSI, etc.) will only let you increase the multiplier to 12.5x or lower. That's why I'm stuck at 12.5x182....I just can't bump the multiplier any higher.
 
even with cpumsr? i use it on a xp333 that doesn't officially support 13.5 and run at 183*13.5 with my 2500m...
 
CPUMSR is flaky with most of the Nforce2 boards. My system locks up the second I try to change the multiplier to 13.0x and raise the voltage.
 
My XP-M2600 is currently run at 12.5X200. It briefly did 12.5X202, but didn't like going any faster. I am running 1.7 vcore and it is prime stable overnight. I have played with lowering the multiplier and increasing the bus speed more, but my machine does not like doing anything over 200. I tired 220X11 which is 2420, but it wouldn't boot windows. My RAM is PC3500, so I am pretty sure it is not the bottleneck. At least I can get tighter timings on the memory at 200.
 
Originally posted by: Zardnok
My XP-M2600 is currently run at 12.5X200. It briefly did 12.5X202, but didn't like going any faster. I am running 1.7 vcore and it is prime stable overnight. I have played with lowering the multiplier and increasing the bus speed more, but my machine does not like doing anything over 200. I tired 220X11 which is 2420, but it wouldn't boot windows. My RAM is PC3500, so I am pretty sure it is not the bottleneck. At least I can get tighter timings on the memory at 200.
Click to expand...

That's good to hear. I really think my mobile can do 12.5x200 (with a slight increase increase in voltage) given a board that runs stable at 200 FSB.
 
How high can you raise the vcore without damaging the chip? 1.725, 1.75, 1.8? I have mine set at 1.675 and it's having a hard time breaking 2.4GHz. I would like to push it a little more. My magic # is 2.5GHz. Do you think if I push it to 1.725, would that be too high? Right now, my temps are @ 42c under Prime95 blend torture test.
 
I just upgrade my 2600+ mobile but with watercooling I ran at 2.7Ghz 1.9 volts. Since my res and heatercore are outside, once it got cold enough at night I could run at 2.8Ghz
 
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