Question about Biostar P4M80-M4 Motherboard

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Ram Memory I have two ram chips.Both of them are from Crucial.One is a 1024 chip and the other is a 512 chip.When I tested my computer at pc-pitstop it scored low in the memory area.It said one problem I have is that windows reports 1550 of ram but the bios only shows 512mb of ram.Why the discrepency?

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  • Anonymous Jan 31, 2008

    Have a biostar p4m80m4 moterboard pent 4 proceesor 2.8g. upgraded ram from 1g to 2gig . checked the the amount of ram under system and it said I had 2gig ram. my computer started acting funny. system would crash. or just shut down,freeze up. but the system was extremely fast. ran test under crucial .com and the one slot said i had 1gig ram and the other slot said it was empty. used DDR 1Gig chips made by kbyte. took the back and got Two 1gig ram cards. installed them and now crucial .com test said I had 512M ram in one slot and the other slot was empty. cannot boot sys. unless hold F9 on key board and wait for sequncing to com up. the harddisk is alredy selecte so i reselect hard disk again then it shows me my two external harddrives . so i select the harddrve with my system on it and system boots up. but computer still runs slow and the test still indicates only 512m ram . any ideas. is there something in my system that is disabled . thankyou scooter d.



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I would try one stick at a time in one of BOTH OF the slots to see if they are damaged or dirty. A tiny piece of lint or "micro" paper between the metal contacts could mean the difference of turning on or not. You did not say if the the memory sticks are the same speed.That causes problems! Take the stick out and REplace it in again.

Posted on Apr 23, 2008

  • Daniel Martinez
    Daniel Martinez Apr 23, 2008

    Guest:01-31-08 with biostar p4m80m4 moterboard pent 4 proceesor 2.8g. upgraded ram from 1g
    to 2gig .
    Did you buy the menory in a wholesale, or discount store.The reason why they are discounted is that the co does not test the chip to its fullest. Sometimes u get a wacko chip.


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Your motherboard my only recognise two of the same size or make of ram. try the 1024mb in on it's own and see if the bios allows the system to boot and recognise it. see what windows recognises, go to my computer, right click, properties and in the main window it will tell you processor speed and look to see how much ram is showing

Posted on Apr 15, 2007


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I upgraded my gategay gt-5428 computer memory 1 gb to 2 gb but still runs with i gb, what i did wrong?

Hello Erik,

Are you absolutely certain that the new module is compatible with your system? Go into the BIOS and see if it is recognized there.

Crucial shows that your computer takes DDR2 memory with support for DDR2 PC2-5300, DDR2 PC2-6400 speeds.

Make sure it is not ECC memory. ECC is not compatible.

If you are sure of the compatibility, I would try to install the old one by itself first and make sure the system boots. Then I would remove the old one and install the new one by itself. Try booting. If it doesn't work, you may have gotten a bad module. (It happens.)

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Thanks for using Fixya.

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Max for this form factor is 512mb. It can be upgraded. Here is step by step instructions

you can buy the ram here for about 18 bucks with a credit card and free account setup

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its that 512 mb total capacity for your computer memory?? if so read this:
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