Got (IDE) hard drives and (EDO) RAM chips from PC hardware upgrading. Have no prior knowledge about these devices. Can someone tell me how do I read the labels on the HD and RAM chips, so that I know their made and capacities.
Thanks in advance.
I have few other hard drives and the following is just one of them:
1. Mande: Quatum Fireball 3.5 series
2. amongst many other info (mostly text and US patents numbers) printed on the metal casing:
- C/H/S: 540=10546/16/63
Hope the above info is good enough.
Note: I can see that the labels on each of different hard disk is different, which really are the relevant info?
The code printed on the RAM chips are:
On Another RAM chip it has these codes:
Fake parity SIMMs (also known as logic parity) use a logic chip instead of actual DRAMs to generate the parity bits for read cycles. The parity written during write cycles will be discarded. This scam has the following problems:
You probably get to pay the same price as for a real parity SIMM, which gives the supplier a very nice profit margin - the fake parity IC is very cheap compared to DRAMs.
If the timing margin is small, you can get spurious parity errors, as the parity chip adds some delay. Logic parity is completely worthless, it cannot check whether the read data is correct.
Someone has a patent on this, and there are some copycat products that infringe on it. YOU as the end-user could become liable !
Typical markings for the logic parity ICs:
[This message has been edited by Baloneyflaps (edited 11-02-2000).]