Abit KT7A + AMD T-bird 1,4GHz - ustabilt på 1,4GHz/133MHz bu

[dizz]

Hei,

 

Har et Abit KT7A og AMD T-bird 1,4GHz, i tillegg til en Taisol CGK760092 kjøleribbe med nobrand-goop påklint.

 

Fra dag 1 har denne kombinasjonen vært særdeles ustabilt på 133MHz bus, og da jeg returnerte det til Komplott Data, fant de ut det samme. Resultatet ble nytt hovedkort, siden det andre var "defekt". Man skulle tro saken endte der...

 

Men dengang ei! En stakket stund kjørte den ok på 1,4GHz, men under heavy load kneler den med SIGSEGV og det som værre er av "minneproblemer".

Hovedkortet påstår prosessoren ligger på rundt 60 grader (noe jeg synes er høyt, men spec'en tilsier 95 grader)

Det morsomme er at i returbeskrivelsen står det "kjørt burn-in test over natten. alt ok".

 

Er det kjøleribba som er problemet mitt? Isåfall, hvilken bør jeg kjøpe da?

("Alle" sa at denne kombinasjonen var glimmers)

[Shepherd]

Hva er kabinett temp. Prøv å ta av dekslet og se hva temp blir da.

[555]

er ikke helt sikker på dette på abit kt7a

får du overklokka agp/pci/minnehastighet hvis den står på 133 det står det ivertfall i bios pråv å stille fsb på 135 og se om dette fikset problemet

 

hvis det funker er det noe rart med abit kt7a, men prøv så får vi se??

[Shepherd]

Overklokke når det høres ut som han temp prob. Neppe lurt, tbirder har for vane å bli ustabile rundt 60 + grader, og opp mot 90 er ikke sunt.

[555]

Quote:

On 2002-03-23 05:44, Shepherd skrev: Overklokke når det høres ut som han temp prob. Neppe lurt, tbirder har for vane å bli ustabile rundt 60 + grader, og opp mot 90 er ikke sunt.

 

fra FAQ

 

Does altering "CPU FSB Plus (MHz)" in SoftMenuIII affect my PCI and AGP bus speeds?

Yes. The PCI clock of KT133 based motherboards is fixed to 1/3 of FSB until the FSB is set at 135MHz (unlikely on a KT133!) after which it is set as 1/4. With KT133A motherboards the PCI clock can be 1/3 or 1/4 of the FSB depending on whether it is set as 100MHz or 133MHz. The AGP clock is always fixed to be twice the PCI clock. So no matter how the FSB is changed, the PCI & AGP clock will be changed according to these fixed ratios. The KT7 user's manual states that this option allows you to "independently increase the CPU FSB speed". This statement is misleading: the PCI and AGP bus speeds are affected. (Confirmed by ABIT)

[555]

tatt fra FAQ

 

Why does Windows lock up when I use a 1.4GHz Thunderbird?

It has been reported that with processors running at above 1.33MHz it is necessary to set the K7 CLK_CTL to Optimal in the BIOS in order for the system to be stable. An alternative to this is to use BIOS WW or earlier, which does not provide this option. If K7 CLK CTL is set to Default then the machine becomes unstable. Another user wrote to me that the reason for this is that at high speeds the ACPI HLT function does not work correctly and as soon as the processor begins to cool it will lock up. The best solution (since changing K7_CTL to optimal is not completely stable) is to disable ACPI completely under these that circumstances. Note ABIT's beta BIOS 3Rb02 has ACPI disabled to resolve this stability issue.

 

andre ting

 

Why is my system unstable?

This could be for many reasons. Try the following:

 

If you have a 1333(133) or 1400(133) Athlon processor then you need BIOS release 3R or later to achieve stability.

Do you have a 300W power supply? Using smaller power supplies is the most common cause of instabilities.

Is your system properly earthed (is your wall socket earthed)?

Is your RAM correctly configured? This is the second most common cause of problems - see memory section for more information.

Do you have have all 3 DIMM sockets occupied with memory? Stability can often be achieved by swapping the sockets used by the memory. You may also need to modify the Delay DRAM Read Latch in the Advanced Chipset Features page of the BIOS.

Do you have an IRQ conflict the Highpoint controller (on KT7-RAID) and a device in PCI Slot 5, or another device using the same IRQ as the Highpoint controller (usually IRQ 5)? SB16 emulation provided with many soundcards is the usual culprit - see sound section - although NICs can also be a problem.

Do you have a non-PnP ISA card installed - if so, remember to reserve its IRQ as legacy in the BIOS

With Windows 95, 98 and 98SE set "PNP OS Installed" to Yes in the PNP/PCI Configurations Setup menu. If running ACPI (particularly with Windows 2000) Microsoft advise you set this to No.

Load latest VIA drivers - see drivers section.

Load latest Highpoint drivers - see drivers section.

Load latest motherboard BIOS - see bios section

Load latest peripheral drivers

If your AGP graphics card is unstable see section AGP- be aware that the AGP slot shares an interrupt with PCI slot 1, so try moving any card out of PCI slot 1. Can you try using an older PCI video card and/or ISA video card for the purposes of troubleshooting?

If the instabilities appear graphics related, try reinstalling the VIA 4in1 AGP driver in Normal mode rather than Turbo mode

Sound card problems can often be resolved by enabling the 15-16 MB memory hole in the BIOS. Note, however, this setting is occasionally the cause of instabilities! I suggest you try both settings!

Note that the BIOS manual explicitly states that the onboard hardware monitor uses I/O addresses 294H to 297H. If you have an add-on card that uses these addresses you must select new I/O addresses for the add-on card. This can be set under System Properties - Device Manager - Properties - Resources.

Try disabling "P2C/C2P Concurrency" in Advanced Chipset Features of the BIOS

Try raising the core voltage and I/O voltage by one notch in the CPU power supply section of Soft Menu III in the BIOS.

Try lowering the I/O voltage by one notch in Soft Menu III in the BIOS.

Don't put other electrical devices near your computer, particularly when you have the covers off. This can leave your system susceptible to interference.

Is your heatsink correctly installed? Incorrect installation of the heatsink can cause the CPU's temperature to rise rapidly and cause instabilities.

Is your computer sharing a surge protector with another computer? One user found this to be the cause of general instabilities

 

alt er tatt fra http://www.viahardware.com/faq/kt7/kt7faq.htm

 

 

 

 

[ Denne Melding var redigert av: 555 på 2002-03-23 07:30 ]

[Shepherd]

Bøyer meg i støvet!!

[dizz]

skeiet ut, og kjøpte en OCZ Goliath med dertil Case60HO, og Artic Silver 3 fra 3dfxcool.no..

 

Resultatet? 15grader kaldere prosessor, og en maskin som kjører mer eller mindre stabilt på 1400mhz/133mhz bus

Men det er jo tragisk da, at man må streve så mye for å få en maskina stabil, før man i det hele tatt begynner å tenke på overklokking.

 

Min neste oppgradering av hk/cpu skal være Intel-basert, bare så DET er sagt :smile:

 

Takk for alle hjelpsomme svar.