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Hardware Problem ?

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I have a pentium(S) 133MHZ, 8Mb RAM, ChipSet OcTek(OCEAN) with MEGATRENDS BIOS and Hard Disk 4.5Gb. I Use it for internet surfing.
Now i need to upgrade memory to 32Mb RAM. So, i replaced my 8Mb SIMM RAM with 32Mb DIMM RAM.
FIRST time the computercounts again 8Mb RAM, and i could?nt get in to my win95, so i restarted the machine.

SECOND time i receieve an error message like
WHILE INITIALIZING IOS...
WINDOWS PROCTECTING MODE LOCKED THE SYSTEM YOU NEED TO RESTART THE MACHINE

PRESS ANYKEY TO RESTART...

Now, i receive a continuos beep and the machine does stop beeping even if a replace with 8Mb SIMM RAM.

Is it a hardware or software problem, how can i solve this?

Adriano Herberth
Mozambique

23 replies

by wsande1

It sounds like you have to big a memory module in your system. Check your MB docs for the max module size that it supports.

by avachon

It sounds like the problem is that you replaced simms with dimms (single-line with doublie-line modules). Usually, even if a board supports both simms and dimms, they are not the same module. As noted above, check your motherboard documentation or go online (maybe a friend's computer if you don't have immediate access to another) and look at your computer manufacturer's site and if necessary, the borard manufacturer's site. Try turning the machine all the way off, reinserting the 8mb simm, makesure it is seated properly and then try to get to your bios to check that 8mb is showing up. You might have to change bios to defaults. Once up, get info. for proper memory. Good luck.

by Member 32254067

TO tell you the truth your board may be a result to esd damage. If your machine once turned on with an 8mb simm and now that you tried the 32 and neither work, you may or damaged the machine board or memory. Try to get a spare 8 meg or vise vera with the 32 and see what resolves your issue. like the gentleman states before me, make sure the bios indicates that the memmory is taken into account. The beeps you are getting are from your bios alerting you of a damaged peripheral. this is a hardware issue and you may need to look into the type of memmory you are using.

by dmiles

It looks like you have a memory problem,that you have gotten memory that is not compatible with the bus speed on the machine if the bus speed is 66mhz,it may not support running a pc100 memory module.Match the memory module with bus speed.

by megtek

SIMMS work at 5 volts, DIMMS work at 3.3 volts. I have a couple of motherboards that support both and there is a jumper on the motherboard that I need to set to the correct memory type. Check to see if your board has this jumper setting.

by megtek

One more thought. Re-set your CMOS. Usually there is a jumper on the motherboard to "clear the CMOS". Then try the 8 MB module. If it works, power down, and reset the cmos again, and try the 32 MB module.

by rolando_manuel

like what megtek said, reset your CMOS then put back the 8MB SIMM, it should work then shutdown the power. try to replace this time with your 32MB DIMM, if it hangs again then you have a memory problem.

possibilities:
1. your DIMM is defective
2. if it is PC100, your board doesn't support it cause your board it is using 66MHz and PC100 uses 100MHz frontside bus. so u have incompatibility problem. try to check the coding in the chip on your DIMM if you find "-10" , you most likely acquired a PC100 DIMM. try to replace it with PC66 DIMM.
3. you must configure your CMOS to support DIMM the first time you boot using DIMM module.

hope this helps...

by greyknight

Haven`t really got any brilliantly helpful info but I remember having similar troubles with a PC CHIPS i430TX motherboard. It turned out that the motherboard would only read DIMMS that were double sided and buffered. When I swaped the DIMM module I was having trouble with it worked fine afterwards.
You may have a similar problem.
Hope this insight helps a little.

by anakin

Many older boards did have dimm slots on the board with simm but the dimm slots were for 4 clock low density sdrams. These sdrams contained chips that only had 2mb max per chip and had to be in sets of 8 to work properly. Many times when inserting newer ram (2 clock and generally without the 8 chip restriction) the mb would exhibit the first and second problem. I think along with the first idea, you may have experienced esd damage or the chipset may have suffered damage via the clock or other component.

by jim_unger

Many of the older crossover boards still have restrictions on SIMM configuration. Make sure that you put the 8meg SIMM in the same slot that you took it out of origionaly for the testing.

by george_koitchev

I see here two ways to act:
1. As Megtek advised, the SIMM RAM works at 5 volts, and DIMM RAM works at 3.3 volts. You should find the jumper on your MB (usually the nearest to the memory slots) and set it to the 3.3 volage.
2. Find a BIOS upgrade for your MB. Some older MBs do not support DIMM inspite they have such slots on them or they support DIMM upto some smaller value, and it may be corrected with a BIOS upgrade.

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