Nunoalex wrote on 2024-04-24, 16:57:

This first one is some kinf of SDRAM but seems to can get a battery attached on the back ... It is from Compaq so.... server ? […]
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This first one is some kinf of SDRAM but seems to can get a battery attached on the back ...
It is from Compaq so.... server ?
Can I it be used on normal PC ? will it explode ? 😀

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20240423_213328[1].jpg

Probably ECC SDRAM. It doesn't work in boards that don't support ECC.

Nunoalex wrote on 2024-04-24, 16:57:

This second one seems to be an ISA card... industrial ? I would think it is some recording card for security cameras ? I have n […]
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This second one seems to be an ISA card... industrial ?
I would think it is some recording card for security cameras ? I have no idea
I thought it was an IDE controller card but those are not IDE connectors 🤣

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Looks like a 50pin SCSI drive controller. Also have a disc on chip that used to be a storage solution mostly on embedded systems.

the RAM is from a RAID controller.

weedeewee wrote on 2024-04-24, 18:08:

the RAM is from a RAID controller.

aha ! very interesting
I have never seen anything like this

RandomStranger wrote on 2024-04-24, 17:28:

[...]

20240423_213328[1].jpg

Probably ECC SDRAM. It doesn't work in boards that don't support ECC.[/quote]
ECC SDRAM works fine in boards that don't support ECC, just like parity SIMMs work in non-parity boards, you just don't get the error detection/correction.

You're probably thinking of registered vs unbuffered. Registered DIMMs won't work on boards designed for unbuffered and vice versa. A lot of ECC DIMMs are also registered, and the vast majority of registered DIMMs also use ECC, but it's the registers, not the ECC, that breaks compatibility.

However as has already been pointed out, this is a custom unit from a RAID controller.

[...]
Looks like a 50pin SCSI drive controller. Also have a disc on chip that used to be a storage solution mostly on embedded systems.

Don't think it's SCSI, for starters it has "MATRIX CONTROL" next to it. Also there's nothing on that card that looks like a SCSI controller, and not enough discrete logic to do it with that.

The sticker on the DiskOnChip (which is on ISA bus so by default basically IDE) says "EDR-1600", which leads me to this:
http://www.securitex.com.sg/Securitex%20Digit … 0Everfocus.html

Looks like a custom card from a security system. Those 50p connectors are for some custom I/O to control the 16 channel video matrix it can display.

Without the rest of the system, what you have there is a rather large ISA DiskOnChip interface, i.e. an SSD 😉

dionb wrote on 2024-04-24, 18:44:

RandomStranger wrote on 2024-04-24, 17:28:

[...]

20240423_213328[1].jpg

Probably ECC SDRAM. It doesn't work in boards that don't support ECC.

ECC SDRAM works fine in boards that don't support ECC, just like parity SIMMs work in non-parity boards, you just don't get the error detection/correction.

You're probably thinking of registered vs unbuffered. Registered DIMMs won't work on boards designed for unbuffered and vice versa. A lot of ECC DIMMs are also registered, and the vast majority of registered DIMMs also use ECC, but it's the registers, not the ECC, that breaks compatibility.

However as has already been pointed out, this is a custom unit from a RAID controller.

[...]
Looks like a 50pin SCSI drive controller. Also have a disc on chip that used to be a storage solution mostly on embedded systems.

Don't think it's SCSI, for starters it has "MATRIX CONTROL" next to it. Also there's nothing on that card that looks like a SCSI controller, and not enough discrete logic to do it with that.

The sticker on the DiskOnChip (which is on ISA bus so by default basically IDE) says "EDR-1600", which leads me to this:
http://www.securitex.com.sg/Securitex%20Digit … 0Everfocus.html

Looks like a custom card from a security system. Those 50p connectors are for some custom I/O to control the 16 channel video matrix it can display.

Without the rest of the system, what you have there is a rather large ISA DiskOnChip interface, i.e. an SSD 😉
[/quote]

Thank you for the help
So basically useless stuff since I dont have a securitex surveillance system and a RAID controller loool 😀

Nunoalex wrote on 2024-04-24, 19:00:

dionb wrote on 2024-04-24, 18:44:

RandomStranger wrote on 2024-04-24, 17:28:

[...]

20240423_213328[1].jpg

Probably ECC SDRAM. It doesn't work in boards that don't support ECC.

ECC SDRAM works fine in boards that don't support ECC, just like parity SIMMs work in non-parity boards, you just don't get the error detection/correction.

You're probably thinking of registered vs unbuffered. Registered DIMMs won't work on boards designed for unbuffered and vice versa. A lot of ECC DIMMs are also registered, and the vast majority of registered DIMMs also use ECC, but it's the registers, not the ECC, that breaks compatibility.

Even though many other chipsets were capable of using ECC without the parity, Intel in their strongarm tactics to isolate market segments put a "feature" in some desktop chipsets that make them refuse to work if ECC is detected.... not because it can't work.. because Intel doesn't want it to work.

memory module is from a storage controller by compaq.

Cheers,

pentiumspeed wrote on 2024-04-24, 22:33:

memory module is from a storage controller by compaq.

Cheers,

Thanx !

WELL good news 😀
They really are memory modules and they ran fine on a normal consumer Slot 1 motherboard with a Pentium III like a normal SDRAM module 😀
And even with some blinking lights hehehe

thanx