Dothan overclocking thread

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03-06-2005, 08:22 AM
bcn

yeah, april... but what do you think of those connectors? thei will interfere with heatsink or waterblock maounting... :(
03-07-2005, 12:45 PM
Rio71

simple.. :D heating up your soldering iron..
03-08-2005, 04:26 AM
Cyprio

Has anybody had any difficulty getting a 1.8 dothan to run in the AOpen mobo?
I swapped one for my 1.5 and keep getting a CMOS error ('Sumcheck' i think) and then it hangs in the post screen. Any ideas?

EDIT: Bit more info: I have been running a 1.5Ghz dothan in the AOpen mobo at 2.25 (with socket wire mod). Just got a 1.8Ghz one to get a higher multiplier to push things further. I updated to the latest BIOS and set everything to default. When my machine boots up it with the 1.8Ghz it will sometimes give me a post screen, other times i have to press Delete to get one. It recognises the CPU as a 1.8 and shows it as (18x100) but then gives me the CMOS error. When i press delete to get to the BIOS it reboots. :confused: Tried this with and without the socket wire mod.

As soon as i put the 1.5 back in it works fine.
03-08-2005, 06:43 AM
2fink

Quote:

Originally Posted by Cyprio

Has anybody had any difficulty getting a 1.8 dothan to run in the AOpen mobo?
I swapped one for my 1.5 and keep getting a CMOS error ('Sumcheck' i think) and then it hangs in the post screen. Any ideas?

EDIT: Bit more info: I have been running a 1.5Ghz dothan in the AOpen mobo at 2.25 (with socket wire mod). Just got a 1.8Ghz one to get a higher multiplier to push things further. I updated to the latest BIOS and set everything to default. When my machine boots up it with the 1.8Ghz it will sometimes give me a post screen, other times i have to press Delete to get one. It recognises the CPU as a 1.8 and shows it as (18x100) but then gives me the CMOS error. When i press delete to get to the BIOS it reboots. :confused: Tried this with and without the socket wire mod.

As soon as i put the 1.5 back in it works fine.

have you cleared cmos after putting the new cpu in?
03-08-2005, 06:57 AM
mikael_j

AOpen working PCI hardware w/ ClockGen?

Heya,

Can anyone here confirm that the various on-board hardware (audio, network, promise s-ata) works for all stable FSBs when fixing the AGP/PCI lock to 66/33 MHz using the beta version of ClockGen for the AOpen 855 board?

I don't want to buy another audio card, as I'm building a compact system, and I'm afraid of how an increased PCI speed could affect the other parts of the system. Also, I'd like to use my AGP card without glitches/lockups.
03-08-2005, 07:22 AM
Cyprio

Quote:

Originally Posted by 2fink

have you cleared cmos after putting the new cpu in?

YUP.
03-08-2005, 06:12 PM
Mats

Quote:

Originally Posted by Kunaak

none.

there are no 478 boards that use PCI EX.

Asus makes two S478/915 mobos, P4GD1 and the cheaper P4GPL-X. I wonder if they will work with the adapter...
Albatron makes two S478/915 mobos. There are probably more of them.
03-09-2005, 09:23 PM
IamAnoobieCheez

Has anybody managed to change multiplier? Is multiplier changeable? If you can change it, post it here... i would like to see how many... :D

because i "cannot" change multi.. WON'T LET ME...

However, I'm getting some deep sh#t (meaning very good) performance at impressive 125~ 130FSB lol... Getting 31,59x 3dmark score on an air cooled dothan at default xtpe clock is very heavily impressive. :D

I really can't complain low FSBs. It's way too fast already. I don't want high FSBs... :D
03-09-2005, 10:02 PM
wwwww

1 Attachment(s)

this is my 24/7 speed - a 15x multi on an 1800MHz Dothan

http://www.xtremesystems.org/forums/...id=26335&stc=1
03-09-2005, 10:40 PM
executor252

Quote:

Originally Posted by Kunaak

none.

there are no 478 boards that use PCI EX.

There is this one...

http://www.newegg.com/app/ViewProduc...170-127&depa=0

But its the only one I have ever found. Looks like a decent board.

EDIT:

Hmm... I see there are some ASUS boards as well. These might be better for overclocking...
03-09-2005, 10:41 PM
charlie

Quote:

Originally Posted by executor252

There is this one...

http://www.newegg.com/app/ViewProduc...170-127&depa=0

But its the only one I have ever found. Looks like a decent board.

wow, what a strange board :shrug:
03-09-2005, 10:45 PM
executor252

Quote:

Originally Posted by charlie

wow, what a strange board :shrug:

Ummhmm. Supports DDR 1-- do the ASUS 478/915 boards use DDR1 or DDR2?

I am biased towards a board that will run DDR1 for use with a Dothan :D
03-11-2005, 12:03 AM
malfunction!

Quote:

Originally Posted by mikael_j

Heya,

Can anyone here confirm that the various on-board hardware (audio, network, promise s-ata) works for all stable FSBs when fixing the AGP/PCI lock to 66/33 MHz using the beta version of ClockGen for the AOpen 855 board?

I don't want to buy another audio card, as I'm building a compact system, and I'm afraid of how an increased PCI speed could affect the other parts of the system. Also, I'd like to use my AGP card without glitches/lockups.

Yes - you can overclock and keep the sound working - only with the clockgen tool though... If I overclock using the BIOS it craps out (funny that AOpen can't get the locks working but someone else can). I have some graphics pauses at some FSBs but have had the audio working fine right up to 180MHz (board or CPU isn't stable above that - I'm running a Banias CPU I bought cheap on ebay)
03-11-2005, 02:01 AM
pcworks

Have managed to pick up a 1.7ghz Dothan 2mb cache sl7ep cpu for £52. A great bargain price, but what is my best motherboard option? Should I go for the Aopen which I get for £149 or the DFI which will cost me £179. Looking to get the cpu stable about 133mhz so will running at 2100-2200mhz stable. I need the pci lock as I will be using a SATA maxtor hard drive and I know these like to be run bang on the 100mhz frequency to prevent data corruption.
Or should I just sell on the Dotan for £110+ and stick with my Winchester 3000+.

Rob H
03-11-2005, 04:11 AM
mikael_j

Quote:

Originally Posted by malfunction!

Yes - you can overclock and keep the sound working - only with the clockgen tool though... If I overclock using the BIOS it craps out (funny that AOpen can't get the locks working but someone else can). I have some graphics pauses at some FSBs but have had the audio working fine right up to 180MHz (board or CPU isn't stable above that - I'm running a Banias CPU I bought cheap on ebay)

Okay, that'd be fine with me. I'm going to hold off doing that 'til the Soltek 855GEI-FGDR is released -- if it has a working AGP/PCI lock I'll get that instead. (I'd need to port ClockGen, or actually write something that works similarly, for the operating system I use, so I'd rather not mess with it if I don't have to. :)

But thanks for the info!
03-12-2005, 08:21 AM
Venom21

hey..
I have Aopen i855Gmem-LFS and I havn't understand how can i lock the AGP/pci ratio..
you said the bios locking isn't working .. but i can't see any locking in the clockgen either.

:confused:
03-13-2005, 02:36 AM
cirthix

venom, i beleive there is an updated (beta?) clockgen available somewhere (you may have to google), i'm not sure where
03-13-2005, 10:07 AM
Venom21

Quote:

Originally Posted by cirthix

venom, i beleive there is an updated (beta?) clockgen available somewhere (you may have to google), i'm not sure where

I searched all google :|

if someone knows where can i find it it will be great. :]
03-14-2005, 08:28 PM
executor252

Just out of curiosity, (I know this thread is mainly dedicated to desktop OCing of Dothans), I am using clockgen for the Intel 845 (CY-something PLL) chipset on my laptop. The PCI/AGP frequency control is not present. I assumed this was a PLL issue, that this PLL cannot lock the AGP/PCI bus frequency. Just for kicks I checked cpuid.com, and it says there that "Some versions of clockgen do not support" AGP/PCI freq lock. Does this mean that there is the potential for a future release of clockgen for this PLL to support AGP/PCI freq lock?

It doesn't really matter since my laptop, being thin, lacks the cooling capacity to handle a large overclock (at 2Ghz CPU reaches 72C load-- not good), but it would be nice to squeeze 1.8 out of it (the CPU and cooling solution can handle this but video chipset can't render in 3d artifact-free anymore, likely due to the 125MHz FSB....).

So is the lack of AGP/PCI lock a software issue or does the PLL not support it at all?
03-15-2005, 04:22 AM
mikael_j

Quote:

Originally Posted by Venom21

I searched all google :|

if someone knows where can i find it it will be great. :]

Look back a couple of pages in this thread, sheesh.
03-15-2005, 07:01 AM
Venom21

Quote:

Originally Posted by mikael_j

Look back a couple of pages in this thread, sheesh.

In this thread someone said that there is a clockgen that can lock the agp/pci ratios but the only clockgen I found was the regular agp lockless one.

(i'm looking for a one that has also the agp ratio like on the DFI's clockgen).

And I really don't think i deserve a "sheesh". (you could just give me the link instead of that..)
03-15-2005, 08:32 AM
charlie

hey all,
any new mobo's out?? Thinking of getting back in the Dothan pool when the water get's warmmmm...........
03-15-2005, 08:34 AM
bcn

yeah, I am thinkking of going in there when Ct-479 is out :)
03-15-2005, 09:24 AM
mikael_j

Quote:

Originally Posted by Venom21

In this thread someone said that there is a clockgen that can lock the agp/pci ratios but the only clockgen I found was the regular agp lockless one.

The URL to the beta-version of ClockGen that can indeed lock the AGP/PCI clocks on AOpen mainboards was posted in this thread a couple of pages ago. I cannot give you the link, because I have other things to do than searching for it for you. You will find it, however.
03-15-2005, 12:16 PM
davvy76

Quote:

Originally Posted by Venom21

In this thread someone said that there is a clockgen that can lock the agp/pci ratios but the only clockgen I found was the regular agp lockless one.

(i'm looking for a one that has also the agp ratio like on the DFI's clockgen).

And I really don't think i deserve a "sheesh". (you could just give me the link instead of that..)

Think thats the one mate http://www.cpuid.com/download/CG-ICS950813.zip its on page 29.

On a side note I picked up a 1.5g dothan off ebay for £46.50 then thought what the hell and ordered the aopen today. Cant wait to see what it'll do
:D

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