OC of cel800@1066 crashes, why?

[Arrhythmia]

Greetings from Finland!!

I am new in the forum and wanted to ask a question about my situation. So directly to the question - 'cause I'm finnish...;)

My computer is built up from following parts:
Abit BE6-2 v.2.0 (actually v.1.2 with v.2.0 bios...),
Cel II 800 + slotket to fit it to slot1
Cooler: Thermaltake Volcano II Cu6+ ,more info: http://www.dansdata.com/coolercomp_p3.htm#6cu
(takes input straight from the power...)
Memory: 1*128/133 spectek & 1*other 128/133
2*ata100 IBM 75gxp hd's
windows 98se :eek:

Why does it crash when I try to run it at 133FSB? :mad:
The windows freezes itself and the temperature of cpu is never reaches higher than 42 deg.C. (according to motherboard monitor..)
Memories are with setup 3-3-3.
It works pretty well with 125FSB(1G), but when I get it higher it stucks.
If I drop the in order queue depth from bios it is more stable, but e.g. the pifast is slover = computer is slover caused by less bandwidth in the memories...
I have flattened/polished both bx-chipset and the heatsink of processor and added thermalgrease to both of them. :D

Have I reached the maximum speed of my Cel?
I've increased the voltage to max 2V without any success keeping it stable.
Have tried with only one dimm...
I have one 80mm fan bottom of the frontcase pulling air in...
I maybe should add one to top getting it out... :rolleyes:

Do you have any suggestion to make it more stable?
I've heard something about burning in the processor..?
Could it be that my old power is not giving enough power?
What have I missed?

Any kind of help is greatly appreciated!!

- Arrhythmia

[The Doors]

Hi Arrhythmia, welcome to the Forum,
You did it all the best or really close, so it's really diffcult to suggest what to do, but for sure you must add an exhaust fan to your case to avoid dangerous stagnate of hot air and try to go at the rated speed with 1.85-1.9v for more than 2 weeks with stronger prg's like folding@home or seti@home (Burn in process). About the case cooling, note that the air for the intake must be the same of the exhaust (consider the fans Cfm's).
What kind of Ps are you using? and the Pci/Agp divider is on 1/4 of the Fsb @133Mhz?

I hope it helps you :)

[batboy]

You might of hit the limit of the CPU or it might be heat problems. Those CPU temps sound ok, but you might try cooling it down some more. The motherboard need to be cool at higher FSB speeds too. Maybe consider adding a 40mm fan onto the northbridge sink and adding an extra case fan or two.

[Arrhythmia]

Originally posted by The Doors
... , but for sure you must add an exhaust fan to your case to avoid dangerous stagnate of hot air and try to go at the rated speed with 1.85-1.9v for more than 2 weeks with stronger prg's like folding@home or seti@home (Burn in process). About the case cooling, note that the air for the intake must be the same of the exhaust (consider the fans Cfm's).
What kind of Ps are you using? and the Pci/Agp divider is on 1/4 of the Fsb @133Mhz?

I hope it helps you :)

Thanks a lot for the comments!!

I am aware of the missing exhaust fan and I am putting one there pretty soon...:cool:
If you mean with "Ps" programs, I am using mostly music programs like logic audio and stuff like that and for testing the OC, I've used burn6k, seti and lots of others too...
I have to make that :mad: burn in process too if that makes any difference. :p
Yes the Pci-divider is 1/4, agp is 2/3 'cause there is no smaller divider for it in the bios...
Could it be too much for my agp matrox g-100?

Anyway, have run that burn in process and add the extra fan to exhaust...

Thanks again for the advice!!

:cool: - Arrhythmia

[The Doors]

I wanna mean Power Supply with PS,
about the Agp Bus, well with a Fsb of 133Mhz is around 88.6Mhz, probably too much (spec 66Mhz), think to an improved HeatSink for your Vid card.

I hope it helps you :)

[Arrhythmia]

:D Stupid me!! :D

PS := power supply.... :p

The power supply is a 230Watt standard one, don't recall the mark now... Anyway I'm trying out one with 300Watts to see if the problem is the too small power source...
I might also consider of buying a new vid card to replace that ancient one. I really don't need any 3d-cards, 'cause I don't play games with it...
Are there any Vid cards that could handle the 88.6Mhz?
I wonder why the agp multiplyer doesn't have any smaller values...

Thanks for the reply!!

:cool: - Arrhythmia

[The Doors]

:D Don't worry, we use too many acronims here :D
Indeed, but I' m not very experienced in Vid cards, I'm sorry.
Personally I'm planning to go with the newest Geforce3 MX, Ti 200 if I remember well, but for you is better try first of all with a cooler on it :) it's cheaper & faster.

[typhoonmike]

Similiar problem. Celeron 900 with an ABIT BX-133 Raid. Both MBs are pretty much identical. Everything works fine at the 125FSB but when I got to 133 my USB dies. I think it has something to do with the AGP being so much out of spec. Sucks we only have 1/1 or 2/3 settings.

[Lancelot]

Now did you ever try 132 or 134FSB? Cuz for some reason my BE6-II v1.1 always locks up during boot at 133 but does 132 and 134 and higher!!!? Maybe it's somehow being caused by my generic slotket, I dunno. Anyway I'm stable @132.44FSB now for over two months. This only works with the following settings; set AGP speed to 'normal' (=1x) and the aperture size to 4MB, you can try to activate this later on. (mine's at 64MB right now) I installed two new Spectek 256MB DIMM's this weekend and she's still 100% stable so it's not your RAM I guess. Please let me know what happens, ok?! Don't forget to set the PCI divider to 1/4 above 124FSB and leave the in-order-queue-depth at 8, otherwise it's gonna be slower than the 800Mhz default speed!

[typhoonmike]

Well setting the AGP speed to normal did help me get started at 127 FSB. Currently running at 130FSB with Normal setting and Vcore set at 1.85. Of course your response was to the original post. Not trying to hijack this post.

[typhoonmike]

Strike that. Just as I finished posting my USB mouse hung up on me. That seems to be the only problem I'm having but since I use my mouse for everything it's a big problem. Oh well just gonna drop it back to 125 FSB and work on overclocking the vid card.

[Lancelot]

Sounds like a resource conflict to me. Is there a card in PCI slot-4, cuz that one shares an IRQ with the USB controller. The BE6/II and BX133 have only PCI slot-2 truely free :\ slot-1 shares an IRQ with the AGP slot, slot-2 is free, slot-3 shares an IRQ with the highpoint ATA-controller, slot-4 shares with the USB controller, and slot-5 shares with slot-2. My SBLive! is in slot-2 and I have a 3Com 10Mbit NIC in the ISA slot.

[typhoonmike]

Yeah it's sharing with my firewire digital video card. But there is no conflict. I mean it works fine right now. It should work fine at 133 FSB since at a 1/4 setting everything would be in spec.

[deez]

Arrythmia---try a PCI or ISA vid. card if your not interested in games. Since your PCI is 1/4 this will not be OC'ed. most local computer shops still sell PCI vid cards for cheap.

[Arrhythmia]

Originally posted by Lancelot
Now did you ever try 132 or 134FSB? Cuz for some reason my BE6-II v1.1 always locks up during boot at 133 but does 132 and 134 and higher!!!? Maybe it's somehow being caused by my generic slotket, I dunno. Anyway I'm stable @132.44FSB now for over two months. This only works with the following settings; set AGP speed to 'normal' (=1x) and the aperture size to 4MB, you can try to activate this later on. (mine's at 64MB right now) I installed two new Spectek 256MB DIMM's this weekend and she's still 100% stable so it's not your RAM I guess. Please let me know what happens, ok?! Don't forget to set the PCI divider to 1/4 above 124FSB and leave the in-order-queue-depth at 8, otherwise it's gonna be slower than the 800Mhz default speed!

Hi!

Have to try this 132 / 134 trick, I'll let you know what happens!
I noticed the same in that in-order-queue-depth thing. It was stable with a setting 1 even with 145FSB but it lacked the speed because of the dropped memory bandwidth.
I have now also a new PS with 300Watts, have to try that one too...
Thanks a lot for the advice!! ;)

:cool: - Arrhythmia

[Arrhythmia]

Originally posted by deez
Arrythmia---try a PCI or ISA vid. card if your not interested in games. Since your PCI is 1/4 this will not be OC'ed. most local computer shops still sell PCI vid cards for cheap.

Hi!

This is a Brilliant idea! :) How come it never came in to my mind...
Have to find one with capability to 1152/864 100Mhz to be the same as now... Any ideas which pci vid card good?
Have to put that one to pci-slot 1 and leave the agp empty...
Thanks a lot for this advice!! It does suck that there is only 2/3 & 1/1 multipliers for the agp...
Will there be any lack of performance?

:cool: - Arrhythmia

[Arrhythmia]

Hello!

So now I have tried with a new PS with 300Watts and with FSB132 & 134...:( No luck this time...
I found out anyway that it might be the vid card which is causing the trouble. (normal agp mode & 4M aperture size)
I tried also how high the cel will post and it posted even at 8*150 setting... :eek:
I doubt it will ever be stable at that high OC though...
Have to try out a pci vid to see if it is the main problem.
I noticed that the main chip in the vid card was really hot when I touched it....:mad:
Maybe I just attach a heatsink on top of that chip and try it out...

A big thank you goes to all of you for replying to my problem!!!

;)

This is a forum that I think works very well!!

Hope I get it stable with the vid-mod.

:cool: - Arrhythmia

[batboy]

What video card do you have? Usually the GeForce cards can handle lots of overclocking. By the way, if your PCI divider is set at 1/4, then your AGP bus if ok. You double the PCI bus speed to get your AGP bus speed. If you are at 133 FSB then PCI and AGP are both in spec.

[Arrhythmia]

Hi!

I have an old Matrox G100.
AGP speed is not double from PCI speed in Abit BE6-2...
The divider for PCI and AGP are separated in this mobo.
I believe that the AGP speed is too much because there is a divider for AGP in bios that can only be 2/3 or 1/1 and in a case that the FSB is 133, slowest AGP is 88.67.;( That may be WAY too far from the 66...
It is said in the bios that if you use FSB 100, put it to 2/3 -> AGP 66...
So the bios really lacks the smaller divider...
If you read earlier messages, typhoonmike was complaining the same thing, BE6-II is lacking possibilities for better speeds for AGP...

You said that GeForce is a good one with higher speeds, can anyone say some other vids that are good for bigger AGP speeds?
I don't need ANY 3d capabilities, only res 1152x864 High Color with 100Mhz refresh rate...

Thanks for the comment!!! ;)

:cool: - Arrhythmia

[tonsku]

I have this same problem..My mobo is now Abit BX6. Before that
I had Asus P2B. Same prob with both mobos.
My prob is that almost all games/3D apps stops and windows
desktop comes back! Other applications are stable because
no 3Dacceleration is used.
So, I think it is too high AGP speed in my case but maybe
your too! My mem is Spectek PC133.

[Arrhythmia]

Hello!

I put an old pci vid card to mobo and I got the 133FSB!!
;)
1.85V 133FSB.
...But it will not go any higher...
...I think that's enough though, OC of 800->1066 is quite good in my opinion!:D

So the problem was the OC'd agp which caused the trouble. Now I just have to buy a pci vid card with decent specs...

...And then I thought that would the arctic silver help something? :p
Temperatures don't reach 40 deg at any time. Could it help?

Thanks goes to all all of you in this forum and who replied to my problem!!

I think the OC of this chip has taken too much time comparing to the actual results...:D

..But anyway thanks again!!!

:cool: - Arrhythmia