Will moblile 2500 work with asus a7v333 (266 only!!)

[vortex240]

Hi

I would like to find out if a mobile 2500 would work an a asus a7v333. This motherboard (rev 1.04 and 1.01) dont support the 333. Is there a way to run the mobile on it at 266 and still reach 2.3g+ speeds.

Currntly I run a palomino 1800 at 2000 (10 x 166fsb @ 1.75v) speeds and think its time to upgrade and from what I read so far the mobile is the way to go.
thanks for the help

Wojtek

 

[myocardia]

If your motherboard doesn't support 166mhz fsb, how exactly are you running your current cpu at 10x166? And yes, you can use a mobile Barton, although if your motherboard doesn't support changing the multi, you will have to mod the cpu itself to be able to run it at 2.4ghz (your only choice- 18x133).

 

[vortex240]

Hi myocardia
Thanks for a quick reply. The offical cpu support page (asus) says that bartons are not supported on this motherboard until the rev2.0. I have confirmed this by checking what some msg boards and no one has been able to get them to run with the regular desktop bartons.

My athlon is ulocked and I am able to swicht the multiplier through the bios. I have a choice of 12.5 x 133 or 10 x 166 and latter is obviously better. (mobo also lets me choose vcore and mem ratio, I can also raise dimm voltage with jumpers) My mem is samsung pc 2700.

This really has my puzzled since I can raise the fsb like that and run it stable. My Q is is weather its possible to run the mobile like that, say 14.5 x 166 or even the 18 x133 if thats all that will be possible. 166sfb is also the last proper divider on my mobo that lets my run 33 (166/33). But I'll be happy as long as I dont have to switch to a new mobo because I cant afford both of these now (poor university student).

I know this is confusing thats why I asked here.
thanks

Wojtek

 

[myocardia]

Well, if your board doesn't support Bartons, you aren't going to be able to use a mobile Barton, either. So, you're going to have to buy an XP2400 Thoroughbred B: link, and here's the retail version (comes with an hsf and 3 year warranty): link. Of course, for not much more money, you could also get a new nForce2 motherboard, then you could overclock the sh*t out of that mobile Barton. You could get a mobile 2400 for $78: link, a Shuttle AN35N Ultra mobo for $69: link, and this Speeze heatsink for $11.99, which is good up to about 2.3ghz or a little over: link. That would allow you to run your new mobile Barton at either 12x or 12.5x166 (possibly as high as 180, depending on your ram). Then, you wouldn't need to upgrade until 64-bit becomes a reality, which won't be for awhile.

 

[dlogic]

The a7v333 will run a desktop barton without a problem if the bios is
updated to the latest version. I ran mine this way (ver 1.04) for 6 months (12.5x176) for 2200 mhz. Check out the Asus forums at AMDMB.com if you have doubts.

If the desktop bartons work then mobile bartons should be fine.
The problem would be that the a7v333 only lets you select the low
multipliers on desktop 2500+ so overclocking may be limited due to
the limited FSB. Not sure if the mobile barton would allow the high
multipliers to be available.

 

[Lonyo]

I have an Abit NF7 with mobile 2500+, and it allowed me to select up to around 22x.
It's currently running 133x18 (max my PC2100 generic RAM will go ).
A marked improvement on my 1600MHz Pally 1900+.

So I think they do unlock all mults.

 

[Cruiser96]

I used to run the Asus A7V333 rev. 1.01 prior to upgrading to an Asus A7N8X-E. I believe that you will be able to run the Barton up to 166FSB but not synchonously. That was resolved in the rev. 1.02 version. However, there should be adequate headroom for your current usage. The "Barton" exclusion is only for the desktop version that requires sychonous 166FSB.

 

[myocardia]

Originally posted by: Lonyo
I have an Abit NF7 with mobile 2500+, and it allowed me to select up to around 22x.
It's currently running 133x18 (max my PC2100 generic RAM will go ).
A marked improvement on my 1600MHz Pally 1900+.

So I think they do unlock all mults.

Lonyo, you've got one of 2 motherboards on the planet that will let you run higher than a 12.5x multi with a mobile Barton, and the other one is an Asus A7N8X-Deluxe, not an Asus A7V333.

 

[vortex240]

dlogic thanks for the info, I did check out the forums there and there was a sticky with a link where someone said that 1016 is the only bios to use and to only run it at 12.5 x 166fsb ( http://forums.pcper.com/showthread.php?s=&postid=2059968 ) , they also mention that the chance of it working is 95%, I guess the latter revision were more succesful. What bios did you use what vcore? I assume that you ran a desktop but now are using a mobile barton, correct(looked at your rig setup)?

BTW will my mobo switch to 1.45vcore by itself as in the bios I only have an option for 1.75V-1.85V.

Last thing I'd like to know what is the difference btw running synchonously and asynchonously as Cruiser96 mentioned and what performance diff it gives.
thanks

Wotjtek

 

[myocardia]

Vortex, Athlons and P4's are extremely different (surprise, surprise). The P4's performance isn't hurt any by running the ram and the fsb asynchronously, but the Athlon's performance is completely destroyed by it. If your only choice with an Athlon is overclocking, but running your ram asynch, you will get much higher performance by not overclocking. That's how important it is for the Athlons.

 

[dlogic]

vortex- I do use the 1016 bios and ran vcore at 1.8V with my desktop
barton at 2200mhz on my a7v333. That was with water cooling. My
desktop barton was an unlocked week 3-30 and never overclocked
very well. My old t-bred 2100 would run at 2340mhz stable at the same
vcore and also would let me use the high multipliers. My 2500 mobile
was never in my a7v333 and due to my water cooling setup its not an
easy job to swap in.

Since moving my water cooling over to my new Abit nf7s and installing
the 2500 mobile at 2600mhz (13x200) the system feels much faster
and has remained very stable. My a7v333 has been my favorite board
to date as it has amazing stability.

 

[Soulkeeper]

it'll work
go to a7vtroubleshooting.com

 

[Soulkeeper]

a7vtroubleshooting.com

 

[mindless1]

Yes, I have an A7V333 rev 1.04 that was running a mobile Barton XP2400 for a little while, to test it briefly when it arrived. Bios version was 1016.

Voltage is not an issue, it will default to 1.575(?) IIRC, but with the A7V333 you have that row of jumpers above the socket to adjust any vCore from below 1.4V all the way to 2.0V, maybe even higher. If you set those jumpers you can then, still do have the ability to select a lessor offset from that in the bios for rapid fine-tuning... the two (bios and jumpers) work in conjunction if you don't have the jumpers set to "auto". The ROMSIP jumper may need changed (I foget which setting is needed) for this to work properly.

I also have an earlier A7V333,either rev 1.01 or 1.02, and it also ran the mobile Barton for a moment but it seemed less stable, couldn't o'c as high, and the temperature report seemed very wrong. Using same heatsink on both boards the earlier revision registered at least 10C hotter, don't recall the reported temp but it was alarmingly high while the heatsink felt relatively cool still. Wasn't a heatsink mounting issue, that was doublechecked and it did run stable beyond 2GHz. I don't know how well it would've ran though, both boards were only used briefly as they'd been sitting unused and available to test CPu before it was installed elsewhere.

Both revisions ran 166 FSB with sync memory bus fine, but did not have multiplier adjustments over 12.5X available due to board age and that the CPu defaults to 6X. I'm not even sure if they allowed changing multiplier AT ALL. I don't see why they wouldn't have, I thought they did, but honestly I've been dealing with so many boards recently I can't remember with certainty. I am sure that it'll work if you burn some bridges or insulate CPU pins so you end up with a higher multiplier, like around 13.5X requires disconnect of the "-8" bridge and one other bridge. See ocinside.de's pin mod, bridge mod guides for further info.