cannot achieve more than 200x11 on A7N8X-X (Athlon-M 2400+)

[ArachPres]

Tested 3 Athlon XP Mobile 2400+ (s) and can only achieve 2200 Mhz stable. (without increasing FSB because my mobo is very unstable above 200).

See if you can pinpoint the culprit!

Antec TruePower 480 Watt
Asus A7N8X-X (latest rev)
2 x Corsair Value Select DDR400 (PC3200)
(My board does not support dual channel)
Athlon XP Mobile 2400+ (3 of them)

I have 2 hard drives and two optical drives
I also have 6 case fans but I know I have plenty of power.

I believe the culprit COULD be the motherboard but then again I'm not sure.

I have wondered this for months whether it can go higher.

V-Core is stable at 1.625 and 1.650. However, NO MATTER HOW HIGH I PUSH THE V-CORE (1.8 +) it will not be stable at anything above 11x200.

Any Ideas?

 

[ArachPres]

PS: The steppings of all three are: AXMH2400FQQ4C

 

[AWhackWhiteBoy]

its your motherboard,most likely. i had the same problem. run your FSB at 190 and jack the multiplier

 

[serverlag]

Well,
that exactly fits my case, except for I get stuck with a xp-m 2500 at 200x11

This looks very much mainboardrelated to me... this mobo is not an overclocker's first choice anyways, but now I think I will go for the Abit NF7-s 2.0 very soon...

 

[cHeeZeFacTory]

i have a nf7-s and its not stable above 200x11. I had it it at 200x11.5 but it crashes after a half hour of gaming.

 

[JeffCY]

nf7-s is fine for me. 217x11.5 or 200x12.5 both fine in gaming/prime95

 

[WobbleWobble]

12x200 here on my A7N8X-Deluxe Rev2 with XP2500+ mobile.

Try doing the wiretrick to unlock the higher multipliers and see if it's your. I've read that some mobiles can't do 200MHz FSB anymore, but I'm not sure how true that is. Did the -X models come with revision one or revision two?

 

[serverlag]

hmm,
this gets me thinking:
I have my xp-m running at 195x12.5 now (2430 something Mhz), its been running perfectly stable with prime95 for 2h now...
as soon as I go over 200 FSB, it doesnt even boot; either its the mobo or the cpu...
oh, by the way, its still on 1,65v
unfortunately, the multiplier doesnt go higher with the a7n8x-x; when I go to 13+, I get 900 Mhz resulting frequency; why I have no idea, but it simply messes up the values...; thats also probably why 12.5 is at the end of the line and 13 at the beginning...

Its still nice to be able to go over 2,4 GHz without overvolting though...

 

[WobbleWobble]

13 is the same as 5, 15.5 is the same as 5.5 I believe. Those multipliers are "shared" (for lack of a better word). High multiplier CPUs can access those without modifications, but not the lower ones and vice versa. You can do the wire trick to unlock them though.

 

[MADhix]

Try switching a RAM stick to another DIMM. I could not run my stable on one DIMM but another ran fine.

 

[AWhackWhiteBoy]

its NOT the CPU,its the motherboard. i had an Asus with the same problem. i took the SAME cpu and SAME ram,put it in a DFI and it pulled 250.