RAM

have u tried running the system with using both RAM sticks, 1 stick at a time? This could possibly help you figuring out whether your RAM sticks are good or have gone kaput.
Maybe there's a problem with the RAM slot itself(if everything else is ok).

Ya tried running it with both sticks individually. Both are good. Also tried both slots.

RAMs are supposed to have incompatibility if not matched perfectly.

1. Are they both the same frequency?
2. Are they both from the same manufacturer?
3. There is some specification called timing or something.

Please check these. The symptoms you describe suggest incompatibility.

^^sling shot, this doesnt matter. I used 2 diferent types of ram in my old pc, ie. 1 x 512mb 400mhz(transcend) + 1 x 2gb 800mhz(kingston)

^ sling-shot's right. There might be some incompatibility. Check the RAM sticks individually using CPU-Z (Memory and SPD tabs). Even if the manufacturers aren't the same, the frequencies should match. RAM (CAS Latency) timings are not much of a hurdle unless you're using a high end overclocker's stick and another a somewhat value stick (you can also change the CAS Latency timings in BIOS in most motherboards.

@Siddharth_1: Strange! haven't heard of this. Possibly your mobo supports both DDR and DDR2 RAM's.

I had returned the new stick since it was not working. So i should check my present ram n buy another of same manufacturer and frequency ?

manufacturer doesn't matter a lot. check for the RAM type (DDR2 or DDR3) and frequency.

Ok . I will check when i get home and reply. It isnt some problem of mobo or anything else? Sorry i am i a noob in hardware matters

Pranav19 said:

Ok . I will check when i get home and reply. It isnt some problem of mobo or anything else? Sorry i am i a noob in hardware matters

Click to expand...

if its a problem of RAM slot then no RAM will work on those slots.
sometime it happens that a single slot is faulty.

if both slots r working fine then use another RAM module

Pranav19 said:

Ok . I will check when i get home and reply. It isnt some problem of mobo or anything else? Sorry i am i a noob in hardware matters

Click to expand...

Can't deny a possibility of a problem with the mobo itself. No need to be sorry, no one's born geek!

No both the ram were working in both slots i tried all combinations but they were not working together.

Pranav19 said:

No both the ram were working in both slots i tried all combinations but they were not working together.

Click to expand...

Then the clock timings are not synced in both

Seems to be a mismatched frequency problem

Ok i downloaded cpu-z my current ram is
ddr2
single channel
dram frequency 333mhz
cycle time 15 clocks

please post the cpu-z screen shots (Memory+SPD).
Seems to me like DDR2 667 Mhz (PC2-5300). Can't be sure unless cross checked with Max Bandwidth (which shows the Module Name and Frequency) under SPD tab of CPU-Z.

*i.imgur.com/pkeoe.png

*i.imgur.com/TAYGL.png
here are screenshots

How to upload photos ? lnik from dropbox not working ?. Here is direct link to the folder *www.dropbox.com/sh/mhdjgp6qazpzsza/bZAYrcTG9a

^ use imgur.com

Confirmed! it's the PC2-5300. Try getting yourself a DDR-2 667 MHz stick. Alternatively to be on the safer side, try getting a stick from one of your friends if possible, to check before buying one.

OK Thanks a lot.

Glad to be of help

Can you tell me how much RAM i can put 1GB or will 2 GB stick be compatible. other minor upgrade which can be done
also which one i should go for ?
*www.flipkart.com/evm-ddr2-1-gb-pc-...AZ7Q&ref=535ef81a-2fba-4a2a-8691-ef498ed8bef0

*www.flipkart.com/transcend-ddr2-66...5EER&ref=535ef81a-2fba-4a2a-8691-ef498ed8bef0

Pranav19 said:

Can you tell me how much RAM i can put 1GB or will 2 GB stick be compatible. other minor upgrade which can be done
also which one i should go for ?

Click to expand...

that depends on your motherboard support.

read the mobo manual or check online by finding the mobo model no & brand

But then how did 2 ram sticks of diff. frequencies(400 and 800mhz) sizes(512mb and 2gb) and from diff. manufacturers(ram from diff. manufacturers not working together makes no sense) worked fine i my pc???

Siddharth_1 said:

But then how did 2 ram sticks of diff. frequencies(400 and 800mhz) sizes(512mb and 2gb) and from diff. manufacturers(ram from diff. manufacturers not working together makes no sense) worked fine i my pc???

Click to expand...

the RAM timings shud match no matter the frequency is 400 or 800Mhz.
in your case the 800Mhz RAM is working at lower frequency of 400Mhz

Instead of EVM (never heard of that!) go in for a Kingston one or stick to Transcend. Flipkart's got the 667 MHz Transcend sticks. Try comparing prices with that in the local market. I've found that Flipkart have prices about Rs. 100 or so higher than the local market. Better put in 2GB to be safe for atleast another year. Your system has a 32 bit OS, and 3GB will suffice. I think your system will support almost 8GB of RAM as your PC has an ATX mobo (as evident from the CPU-Z screenshots-your current RAM is in Slot #3)

Zangetsu said:

the RAM timings shud match no matter the frequency is 400 or 800Mhz.
in your case the 800Mhz RAM is working at lower frequency of 400Mhz

Click to expand...

Guys! lets not fight over different RAM's working together.
Timings doesn't matter a lot, until and unless you're an extreme overclocker. The RAM's are capable of operating at different frequencies way up till the maximum RAM frequency. The RAM sticks are required to operate at different CAS Latency timings as laid down in the specifications given by JEDEC (Joint Electron Devices Engineering Council), and the RAM sticks change their CAS timings according to their operating frequency.

In an ideal world they should. But in the real world there have been many reports of problems related to these things. And the OP has already explained his situation.

So there is no harm in playing safe and getting exact matches.

If there are more than one channel present in the board, RAM modules having different timing can be used. Otherwise, if two modules having different timings (not speed) is being used in a same channel, PC won't start at all.

What is timing of module ?

Memory timings - Wikipedia, the free encyclopedia should explain it to you better than anyone

Pranav19 said:

What is timing of module ?

Click to expand...

In your case, the existing module is of CL5 (i.e. having the timing 5-5-5-15) and with the memory speed of 666MHz.

P.S. See the Wikipedia link.

ok.. But on flipkart they show only CAS latency as seen my cas latecy is 3-4-5. So would this ram be ok for me Transcend DDR2 1 GB PC RAM (JM667QLU-1G) | Ram | Flipkart.com .
or any other ?
Thanks

absolutely fine!

Pranav19 said:

ok.. But on flipkart they show only CAS latency as seen my cas latecy is 3-4-5. So would this ram be ok for me Transcend DDR2 1 GB PC RAM (JM667QLU-1G) | Ram | Flipkart.com .
or any other ?
Thanks

Click to expand...

Yes. It will.

Hey guys sorry for late. Couldn't buy the ram immediately. Got 2gb Ram from flipkart today. Its smaller in size than earlier one so it cant be locked.. Had problem installing for some time but got it right in the end.. Now pc working fine.. Thanks..

Size is actually same.
And congrats on your purchase.

the length is same but the width was almost half..

Pranav19 said:

the length is same but the width was almost half..

Click to expand...

Oh! Difference in heatsink.

^^heatsink.err..... the memory chips have become smaller

BTW, congrats for the purchase Pranav19.

CyberKID said:

^^heatsink.err..... the memory chips have become smaller

BTW, congrats for the purchase Pranav19.

Click to expand...

A bit OT: can the same be said for DDR2 RAM modules?

^ may be this might hold true for DDR2 memory chips as well. We all know that its the enthusiast RAM modules which feature heatsinks, and the value ram's are better off without heatsinks. I haven't played with DDR2, so can't say for sure. Given that the length can't be reduced, manufacturers might have reduced the height to save on some costs.