Messages in this thread | | | Date | Thu, 21 Oct 1999 15:52:00 +0100 | From | Andrew Gormanly <> | Subject | Re: HELP! 2.2.12 sudden death |
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Pierfrancesco Caci wrote: > > :-> "Andrew" == Andrew Gormanly <a.gormanly@ucl.ac.uk> writes: > >> Pierfrancesco Caci wrote: >>> >>> Hi all, >>> I don't think that the following problem is strictly related to version 2.2.12 >>> I'm running: >>> >>> A couple of week ago I upgraded my computer from a good-ol' Pentium133 >>> to a Pentium II 400. So I had to change also the motherboard (Epox >>> EP-BX3), the ram chips (2x64 MB, they were sold me as good for 100 MHz >>> bus, the computer BIOS says they're 60 ns), and the case obviously. >>> > >> 60ns? Isn't this the access speed for asynchronous RAM interface? Could >> it be that you've got something wrong in the BIOS setup, that thinks >> it's DRAM in the slots not SDRAM? > >> [100MHz strictly implies access time of 10ns (max_frequency = >> 1/min_access_time), and lower would be safer.] > > > The BIOS says something about SDRAM chips present in the case, and I > clearly remember reading "10" on the circuits on the ram modules. > When I go to the "chipset features" page it has a part relative to > EDO DRAM modules, and here is where it says 60 ns. The M.B. doesn't > have any 72 pin slot though. Do you think that I should try and mess > with the options for SDRAM ? There are 4 of them: > RAS-to-CAS Delay > RAS Precharge Time > CAS Latency Time > Precharge Control > > There is also an option about AGP that I don't understand (I don't > have an AGP card now, I will probably buy one in the future): > AGP Aperture Size. > > I had a ram problem once on another computer, and it generated a lot > of Signal 11 and Oops'es. This one simply freezes. > > Thanks for your time > Pf >
Some suggestions:
Could you find out exactly what the CMOS Setup reports regarding memory? Also what it says about EDO, and what it says about SDRAM. Does it say 60ns - if so, where?
In the Chipset Features Setup, do you have an Auto Configure option? Is this disabled? if so, try enabling it - and make a note of any changes. then see what happens...
Do you have POST (Power On Self Test) disabled? If so, re-enable it, this will tell you if you have a hardware problem. You should have "Halt On" (under CMOS Setup) set to "All errors" and "Quick POST" (under BIOS Features Setup) set "Disabled"
A lack of 72pin slots != SDRAM. EDO DRAM is also manufactured in 168pin DIMMs, and your board supports these - but obviously only at FSB of 66MHz.
SDRAM also comes in 66MHz and 133MHz DIMMs - but of course with a p2 400 you're stuck at 100MHz bus. Can you try the DIMMs in another machine running at 66MHz bus speed and see if they work?
Hope this helps, Andy
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