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A7N8X Deluxe -- I hit the 200mhz FSB finally!

ctk1981

ctk1981

Golden Member
After upgrading to a Radeon 9500 Pro from Visiontek, and updating to 1002A instead of 1002.001 I can actually boot and make it to windows on 200x11. I will try for a higher multiplier later, see whats stable. Before I couldnt even get the system to boot at 190 FSB. Wahoo!!!!!

 
Well I can get all the way up to 174 FSB with mine, I tried higher and had to reformat the harddrive, Lost everything on it, So backup if you are overclocking
 
Yep 1002.A is definitely an improvement with high FSB speeds, but I still can't get it to run stably over 200MHz. I can do up to 196MHz though which is nice, but I still get hard locks above that. Previously, I couldn't run above ~192MHz FSB w/out serious stuttering in 3D apps.

Chiz
 
Well I just run it at 333/166, It runs better their anyway and I have a KT400 board to play around with, It will overclock in the 200's with no problems, If I get the time I would like to see just how high the KT400 will go with a little work
 
Well, after some testing Im in the same boat as you chizow. I can hit 195 stably. Above that I think my radeon is the thing thats freaking out, it cant do any games at all. Oh well. Maybe with the next revision we will be able to do the 200mhz and play games. haha. It passed Prime 95 however!
 
I have the MSI KT4V KT400 chipset mobo with the MSI approved Samsung 512 PC3200. I cannot get my computer to boot when I manually fool with the CPU multiplier. If I leave it to "Auto", it will boot fine. The default FSB shipped was 100. I upped it to 133 and left the CPU multiplier at "Auto" and it boots fine showing my XP 2200+ CPU. If I try to set my FSB any higher than 133, it will not boot. What's the deal here? I wanna hit 200 too!!
 
It's really annoying. I can go up to 204 fsb, but 3dapps and benchies lock or reboot system. Max stable on the fsb right now is 190. I'm going to replace the nb cooling after lapping smooth, and install sb cooling. Also going to do the vdd mod. Hey chiz, there are two methods of doing the vdd southbridge mod posted on nforcerhq.com. Which 1 do you recommend? I'm strongly considering the newest to be presented. Thanks.
 
DoubleL 333MHz may be the sweet spot for the KT400, but a recent article at LostCircuits shows this is clearly not the case on the nForce2. They ran a Barton at the same clockspeed (2.167GHz I believe) on a 333MHz and 400MHz synchronized FSB and the 400MHz FSB alone was enough to justify a 3200+ PR rating.

Glassdaddy It sounds like you got a non-OC friendly board. 🙁 If you only have 100/133/166 jumpers with no soft-BIOS options to change the multi/fsb, you're pretty much stuck at those settings.

CamNeely I would go with the option that is reversible. I believe you are referring to the hot glue vs. soldering options, so I would go with the hot glue option, although personally I'm gonna do neither. I sometimes resell/recycle my parts, so I'm not into doing irreversible physical modifications to my board, especially when it might only give me a few FSB. I'm really waiting for a 400MHz Barton b/c I'm thinking that would bring about a new BIOS revision that would support 200MHz FSB. If a 200MHz does become officially supported and the 9500/9700 series still can't do 200MHz FSB, it would confirm my hunch that its a hardware limitation on the 9500/9700s at high FSB speeds. B/C of the 9500/9700 low tolerance for out-of-spec AGP buses though, my guess is its still a BIOS/AGP lock issue, where the lock is non-existent or unstable at high FSB speeds.

Chiz
 
Chiz...That the odd thing. The board doesn't have any jumpers for clock settings, it is all in the BIOS soft-menu. It also will allow you to change the FSB in 1 Mhz increments. Thing is, as soon as I try to manually set the CPU multiplier (taking it off the 'Auto' function) it will not boot, regardless of what I have the FSB set at (100 or 133, much less 166 & 200). I don't get it?


 
Originally posted by: GlassDaddy90
Chiz...That the odd thing. The board doesn't have any jumpers for clock settings, it is all in the BIOS soft-menu. It also will allow you to change the FSB in 1 Mhz increments. Thing is, as soon as I try to manually set the CPU multiplier (taking it off the 'Auto' function) it will not boot, regardless of what I have the FSB set at (100 or 133, much less 166 & 200). I don't get it?
Click to expand...

I would check AMDMB.com for the BIOS preferred by those with clock/FSB settings you'd like to achieve. Some BIOS revisions simply don't take well to being changed from defaults. Also, it might be the chip itself. IIRC the 2200+ uses the elusive/troublesome 13.5X multi which has been known to cause problems on various boards as well as being an "off" multiplier even on boards that grant access to the full range of multis found on Athlon XPs. I'm pretty sure there is a mod required (either the pin/wire trick or the more recent mobo paint mod) to get that chip to take to OC'ing. Run a google search to see if you find anything, as that chip didn't get too much exposure b/c of low circulation in the OC'ing enthusiast circles.

Chiz
 
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