trying to figure out why ram upgrade isnt working

so i have this ram:



and i was trying to install it into my sister's emachines T3828 and it wouldnt boot. it would just keep beeping and not even display anything (monitor says it's not recieving any signal). Now i checked crucial's site and they said to get PC2700 CL2.5 2.5V ram.

is the ram that i have not able to run at 2.5v when downclocked to 333mhz? i tried using the 512mb stick just by itself in different slots and clearing the cmos, both dont seem to work.

remember that there's no way to change anything in the emachines' bios and everything is set automatically. maybe the emachines cant downclock a ddr400 stick?

I had a same problem with my HP where I tried installing 1GB on Corsairs XL's and it wouldn't work. I did allot of research, replaced the PSU, overclocked the CPU and nothing.

The problem is that these BIOS are totaly locked from making any hardware configuration that if you put anything in that doesn't match exact specs of the replacement part it won't work. So your best bet would be to find a RAM that has exact same timings and Vdimm and try it. Other then then it will be close to impossible to get it to work, unless you want to gamble with the entire system and flash the BIOS to a board that matches the specs to the one used in the current machine. That is the only solution I seen so far.

doh boy said:

is the ram that i have not able to run at 2.5v when downclocked to 333mhz?

Click to expand...

First:
pc2700 = 166mhz = DDR333
pc3200 = 200mhz = DDR400

333mhz ram would be DDR666 (which is not available...atleast not in this galaxy).

billb said:

First:
pc2700 = 166mhz = DDR333
pc3200 = 200mhz = DDR400

333mhz ram would be DDR666 (which is not available...atleast not in this galaxy).

Click to expand...

I'm sure he was referring to DDR333, just a typo

jeez talk about a mem-nazi fine.. downclock to *DDR333*

but w/e i decided to just return for a refund.

actually, reddragon, what about flashing the spd of this stick with a compatible profile?