Barton 2500+ - strange overclock problem

Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying to
increase the FSB. However, if I go above 169MHz the system will not post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into WinXP, I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a XP2400+,
using the same system set-up. The new 2500+ obviously has some headroom for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net. Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**

On Sun, 25 Jan 2004 16:38:57 -0000, "Andrew Gowen"
wrote:

Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying to
increase the FSB. However, if I go above 169MHz the system will not post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into WinXP, I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a XP2400+,
using the same system set-up. The new 2500+ obviously has some headroom for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net. Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**


Is RAM in sync with FSB and set to 100%? While your checking lock the
AGP to 66Mhz.
__________
If you give a little they give a lot.
http://www.dslreports.com/forum/disco

May sound silly but i have experienced something similar where my xp 1800+
would not post if i had an fsb of 180 so what i did was change the setting
'Halt on' to No Errors in standard cmos and it seem to cure it

try it let me know.

On Sun, 25 Jan 2004 16:38:57 -0000, "Andrew Gowen" wrote:

:Hi,
:
:I have a rather unique problem with a 2500+ overclock. My system is:
:
:Barton 2500+ (AXDA2500DKV4D) - locked :-(
:Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
:2 off sticks of 512MB Crucial PC3200 XMS
:SATA, IDE, both LANs and IEE1394 enabled
:Using on-board sound
:
:SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
:IDE1 - Another 80GB drive
:IDE2 - Pioneer A105 DVD-R and LG CD-RW
:
:Sapphire 9800 Pro
:
:The problem occurs at boot. As the multiplier is locked, I am trying to
:increase the FSB. However, if I go above 169MHz the system will not post.
:I have increased the core to 1.75v but to no effect.
:
:Now here is the weird part, if I boot at 166MHz FSB and get into WinXP, I
:can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
:runs stable with Prime95. The chip will run fine at stock voltage and
:180MHz FSB. It just will not boot past 169MHz!
:
:I have previously run the memory at 210MHz when overclocking a XP2400+,
:using the same system set-up. The new 2500+ obviously has some headroom for
:an overclock but put them together and they will not boot!
:
:I have only found this problem mentioned one other time on the 'Net. Does
:anyone have any suggestions or a solution to this please?
:
:Cheers,
:
:Kayf
:
:**E-mail does not work, please post to group**
:
:

-----
Lee.

Thanks for the suggestions.

Memory is set to 100% sync and I have locked the AGP to 66MHz. Still the
same problem.

I will check the 'halt on' setting and report back.

Thanks for the quick replies,

Kayf

"Lee" wrote in message
...
May sound silly but i have experienced something similar where my xp 1800+
would not post if i had an fsb of 180 so what i did was change the setting
'Halt on' to No Errors in standard cmos and it seem to cure it

try it let me know.

On Sun, 25 Jan 2004 16:38:57 -0000, "Andrew Gowen"
wrote:

:Hi,
:
:I have a rather unique problem with a 2500+ overclock. My system is:
:
:Barton 2500+ (AXDA2500DKV4D) - locked :-(
:Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
:2 off sticks of 512MB Crucial PC3200 XMS
:SATA, IDE, both LANs and IEE1394 enabled
:Using on-board sound
:
:SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
:IDE1 - Another 80GB drive
:IDE2 - Pioneer A105 DVD-R and LG CD-RW
:
:Sapphire 9800 Pro
:
:The problem occurs at boot. As the multiplier is locked, I am trying
to
:increase the FSB. However, if I go above 169MHz the system will not
post.
:I have increased the core to 1.75v but to no effect.
:
:Now here is the weird part, if I boot at 166MHz FSB and get into WinXP,
I
:can use ClockGen to increase the FSB up to 190MHz (1.75v) and the
system
:runs stable with Prime95. The chip will run fine at stock voltage and
:180MHz FSB. It just will not boot past 169MHz!
:
:I have previously run the memory at 210MHz when overclocking a XP2400+,
:using the same system set-up. The new 2500+ obviously has some
headroom for
:an overclock but put them together and they will not boot!
:
:I have only found this problem mentioned one other time on the 'Net.
Does
:anyone have any suggestions or a solution to this please?
:
:Cheers,
:
:Kayf
:
:**E-mail does not work, please post to group**
:
:

-----
Lee.

When you say no POST, does your mother beeps?
If so,beep sequence is error report, actually!

If not, I would suggested that you take out one memory stick and try again,
nForce chips have a very strange taste on memories! There should be nothing
wrong with the memory, but the nForce chip just don't like them ;-)

I had try 3 different made RAM modules before my 2500+ will run stable
200MHz FSB!

Also, try lock you RAM speed at 166MHz and just increas the CPU FSB.

Sorry , typo, suould be "motherboard beeps"!


"MickT" NoAddress ¦b¶l¥ó ¤¤¼¶¼g
....
When you say no POST, does your mother beeps?
If so,beep sequence is error report, actually!

If not, I would suggested that you take out one memory stick and try
again,
nForce chips have a very strange taste on memories! There should be
nothing
wrong with the memory, but the nForce chip just don't like them ;-)

I had try 3 different made RAM modules before my 2500+ will run stable
200MHz FSB!

Also, try lock you RAM speed at 166MHz and just increas the CPU FSB.

Hi Andrew

Don't have a solution but I am using the same mb, cpu and crucial memory at
200 FSB (Radeon 9600 Pro) with no problems but I only manged to achieve
equivalent speed of 3000+ without game shut downs. Untill I get an improved
HSF I will leave mine at this setting. Are your memory timings too
agressive?

Bryan


"Andrew Gowen" wrote in message
...
Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying to
increase the FSB. However, if I go above 169MHz the system will not post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into WinXP, I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a XP2400+,
using the same system set-up. The new 2500+ obviously has some headroom
for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net. Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**

Kayf,
Your problem is in the motherboard, specifically it's clock generator and
the northbridge. The northbridge is less stable in the 1.04 and 1.06 series
A7N8X.

When I switched boards out to a 2.0 I was completely stable at memory speeds
up to 230. This is the whole reason nVidia released a second revision to
the chipset - for stability at clock speeds above 168.

One potential fix you may want to try is to remove the heatsink on the
northbridge, put some artic silver on it, and re-attach it (or replace it
with a small fan). That will lower the NB temp and hopefully let you OC
better on the memory frequency and timings.

Also, invest in the best heatsink you can buy - you won't regret it. I
bought a Thermalright SLK-900U when it came out and got an extra 100MHz out
of my overclock (and on a quieter fan). It's a BIG heatsink, but worth it
in my opinion.

Brent
Athlon XP 2500+ 2.4GHz (11.5 x 209) w/ Thermalright SLK-900U
2x512MB Corsair XMS LL PC3200
36GB 10k WD Raptor SATA HD
Sony DRU-500A DVD+RW
Coolermaster ATC-210VX Case
Samsung SyncMaster 213T Digital 21.3" LCD
ATI Radeon 9000 Pro 128MB (weak, i KNOW)




"Bryan Prestbury" wrote in message
...
Hi Andrew

Don't have a solution but I am using the same mb, cpu and crucial memory
at
200 FSB (Radeon 9600 Pro) with no problems but I only manged to achieve
equivalent speed of 3000+ without game shut downs. Untill I get an
improved
HSF I will leave mine at this setting. Are your memory timings too
agressive?

Bryan


"Andrew Gowen" wrote in message
...
Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying to
increase the FSB. However, if I go above 169MHz the system will not
post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into WinXP,
I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a XP2400+,
using the same system set-up. The new 2500+ obviously has some headroom
for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net.
Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**

Kayf

I have a Version 2.0 motherboard deluxe. I have tried to overclock to 3200+
but the cpu get too hot (59 - 62 degrees). I think the supplied Amd HSF
that came with the CPU is not suitable for overclocking. I am skint at the
moment but will upgrade to something like the Thermaltake Volcano 12 HSF at
http://www.dabs.com/uk/productView.htm?quicklinx=2RSP for £17 + delivery.

Thanks

Bryan

"Brent K. Presley" wrote in message
om...
Kayf,
Your problem is in the motherboard, specifically it's clock generator and
the northbridge. The northbridge is less stable in the 1.04 and 1.06
series
A7N8X.

When I switched boards out to a 2.0 I was completely stable at memory
speeds
up to 230. This is the whole reason nVidia released a second revision to
the chipset - for stability at clock speeds above 168.

One potential fix you may want to try is to remove the heatsink on the
northbridge, put some artic silver on it, and re-attach it (or replace it
with a small fan). That will lower the NB temp and hopefully let you OC
better on the memory frequency and timings.

Also, invest in the best heatsink you can buy - you won't regret it. I
bought a Thermalright SLK-900U when it came out and got an extra 100MHz
out
of my overclock (and on a quieter fan). It's a BIG heatsink, but worth it
in my opinion.

Brent
Athlon XP 2500+ 2.4GHz (11.5 x 209) w/ Thermalright SLK-900U
2x512MB Corsair XMS LL PC3200
36GB 10k WD Raptor SATA HD
Sony DRU-500A DVD+RW
Coolermaster ATC-210VX Case
Samsung SyncMaster 213T Digital 21.3" LCD
ATI Radeon 9000 Pro 128MB (weak, i KNOW)




"Bryan Prestbury" wrote in message
...
Hi Andrew

Don't have a solution but I am using the same mb, cpu and crucial memory
at
200 FSB (Radeon 9600 Pro) with no problems but I only manged to achieve
equivalent speed of 3000+ without game shut downs. Untill I get an
improved
HSF I will leave mine at this setting. Are your memory timings too
agressive?

Bryan


"Andrew Gowen" wrote in message
...
Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying
to
increase the FSB. However, if I go above 169MHz the system will not
post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into
WinXP,
I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the
system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a
XP2400+,
using the same system set-up. The new 2500+ obviously has some
headroom
for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net.
Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**

I'm guessing it's the processor that is not cooperating. Maybe it's bad. I
hope AMD has not devised a way to lock the FSB, God forbid.

Dave


"Andrew Gowen" wrote in message
...
Hi,

I have a rather unique problem with a 2500+ overclock. My system is:

Barton 2500+ (AXDA2500DKV4D) - locked :-(
Asus A7N8X-Deluxe - v1.4 - 1007 Uber BIOS
2 off sticks of 512MB Crucial PC3200 XMS
SATA, IDE, both LANs and IEE1394 enabled
Using on-board sound

SATA - RAID0 using two DiamondMax 80GB drives - has boot partition
IDE1 - Another 80GB drive
IDE2 - Pioneer A105 DVD-R and LG CD-RW

Sapphire 9800 Pro

The problem occurs at boot. As the multiplier is locked, I am trying to
increase the FSB. However, if I go above 169MHz the system will not post.
I have increased the core to 1.75v but to no effect.

Now here is the weird part, if I boot at 166MHz FSB and get into WinXP, I
can use ClockGen to increase the FSB up to 190MHz (1.75v) and the system
runs stable with Prime95. The chip will run fine at stock voltage and
180MHz FSB. It just will not boot past 169MHz!

I have previously run the memory at 210MHz when overclocking a XP2400+,
using the same system set-up. The new 2500+ obviously has some headroom
for
an overclock but put them together and they will not boot!

I have only found this problem mentioned one other time on the 'Net. Does
anyone have any suggestions or a solution to this please?

Cheers,

Kayf

**E-mail does not work, please post to group**