Pro/Forums - Snap 705N/4100 lives and thrives!

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Re: Snap 705N/4100 lives and thrives!

I would think the best bet would be to look up spec on the chipset on the board.

Re: Snap 705N/4100 lives and thrives!

I have taken a 64MB ram module out of my server the Module has 4 devices

Each device is ..... NEC D45128163GS

As there only 4 devices the parity / ECC (if any) will be in the Chips

So check out the device datasheet and see if they are ECC or not

The server will work with Chips that are Non-ECC

Re: Snap 705N/4100 lives and thrives!

These numbers do not match UNIGEN Part Numbers. I will email you the chart.

Re: Snap 705N/4100 lives and thrives!

Quote:

Originally Posted by rpmurray

I wouldn't be too sure about that. The Seagate 500GB drives draw a bit too much power on startup for the Snap 4000 power supply. Three will work, with four it comes on for a couple of seconds and then shuts itself down.

It might work with the Hitachis since they seem to have lower startup power requirements, but they use a bit more when running than the Seagates. I don't have any Hitachis to test this with.

Right now I'm trying to replace the power supply with a 250W unit, but it's going to require some rewiring to hook it to the motherboard, and I've been tied up at work for the last few weeks, so haven't gotten very far.

Recently, in another message thread, someone was having trouble with 4 x 400GB drive. This thread came to mind concerning the power requirements, but then that conversation turned towards a possible limit of the 4000 and large numbers of sectors (above about 1.2 TB). Something keep nagging at me saying that was wrong, then I came back and read this message thread again.

Dave, this guy has 3 x 500 GB drives working (power was the issue for 4). For my math, that would be 1.5 TB. If we can confirm from rpmurray that he has 3 x 500 GB drives working with no problems, that would dispell that issue would it not?

rpmurray, can you confirm 3 x 500 GB drives working with no problems in your 4000 please? Any issues at all formatting or putting into and keeping a RAID 5 etc?

Ideas? Comments? I am still searching for the limitations of the 4000 (stock).

Re: Snap 705N/4100 lives and thrives!

Quote:

Originally Posted by blue68f100

These numbers do not match UNIGEN Part Numbers. I will email you the chart.

No these are the NEC memory chips fitted to the Memory Module. Do a search on the NEC part number should tell you all you need to know. I have been travelling so have not had time to do it myself.

Re: Snap 705N/4100 lives and thrives!

Quote:

rpmurray, can you confirm 3 x 500 GB drives working with no problems in your 4000 please? Any issues at all formatting or putting into and keeping a RAID 5 etc?

I didn't have any trouble formatting the drives. But since I was trying to get it to do RAID 5 with four drives, and I couldn't get it to power up and stay up with that many, I never got around to actually raiding them together. It never occurred to me that this wouldn't work once I can get the fourth drive to power up. I can't tell you if it would work with three at the moment.

If I can get some time this week, I'll try hooking it up again and see what it does with three drives.

Re: Snap 705N/4100 lives and thrives!

Ah, so there might yet still be a problem with the RAID 5 and the size of the drives maybe... This will be interesting... looking at the size of Hard Disks, there may be a problem using 300 or 320 GB drives instead of 250's due to the total size in the end. This would definately be good information to know...

Re: Snap 705N/4100 lives and thrives!

One of the reasons it never occurred to me that larger drives might not work is because of this statement I found from on ebay from the seller Spontaneous Combustion:

http://stores.ebay.com/Spontaneous-C...-Upgrades.html

Quote:

Snap 4000/4200/4500 = Varies, but most will go 4x400 for 1.6TB (email me for more info)

Re: Snap 705N/4100 lives and thrives!

Which again brings me back to, I wonder if there are some differences between the various revs of the 4000 (there are 4 revs I know of) and the at least 2 different motherboards in them. Makes me wonder...

Re: Snap 705N/4100 lives and thrives!

I seem to have network speed problems on a Dell 705N (4100). Here in this thread I read that I sould be able to get up to 10M/s. How best can I measure the transfer speed (read and/or write) under WinXP Pro?

Re: Snap 705N/4100 lives and thrives!

The ideal way is to run a chariot run. The poor man ways is to transfer a file >100 meg and time it, then calculate the speed. Drag and drop will be lower. the a ftp transfer. If you have a lot of trafic on the lan it will be slower.

If you think you are slow verify the port is running at full duplex. From debug enter "ethernet speed" and "ethernet fullduplex"

Re: Snap 705N/4100 lives and thrives!

The easiest way I have found is use a web browser to get into the snap, find a large file, right click on it and chose "save link as". IE (firefox, whatever you use) will download the file just like it would from a web page and give you the transfer rate as it does so.