What memory for Abit IC7

Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I get
Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?

Recommendations and advise please.

Thanks guys,

MS

if you want something for overclocking the ocz pc4000 gold is some of the
best available right now, though you may want to wait for the revision 2
stuff to come in stock, it should be even better.

"MS" wrote in message
...
Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I get
Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?

Recommendations and advise please.

Thanks guys,

MS

MS wrote:

Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I get
Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?

Recommendations and advise please.

Thanks guys,

MS

I recommend using DDR400 (PC3200) memory. In dual channel configuration,
this is an optimal match for the 800 fsb. Anything above will not be
beneficial and could even slow down a little for the syncronisation.

"MS" wrote in message
...
Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function
snip

Then definitely get ECC memory. A white paper I've recently found
indicates that a PC with 1GB of memory running 24 hours a day will
sustain a memory error on an average of about every 5 days. See:
http://www.tezzaron.com/about/papers...1%20secure.pdf ,
Appendix B, Calculations, on page 6. Each memory error stands a chance
of causing your computer to crash, or worse yet, corrupting a program
or data on your hard drive.

-- Bob Day
http://bobday.vze.com

wooducoodu wrote:
if you want something for overclocking the ocz pc4000 gold is some of the
best available right now, though you may want to wait for the revision 2
stuff to come in stock, it should be even better.

OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory
£276.64

It's pretty expensive. How about recommending something a bit cheaper? It
doesn't need to be 'the best available' just something that will give me
reasonable performance.

Thanks,

MS


"MS" wrote in message
...

Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I get
Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?

Recommendations and advise please.

Thanks guys,

MS

Johannes H Andersen wrote:
I recommend using DDR400 (PC3200) memory. In dual channel configuration,
this is an optimal match for the 800 fsb. Anything above will not be
beneficial and could even slow down a little for the syncronisation.


Bob Day wrote:
snip
Then definitely get ECC memory. A white paper I've recently found
indicates that a PC with 1GB of memory running 24 hours a day will
sustain a memory error on an average of about every 5 days. See:
http://www.tezzaron.com/about/papers...1%20secure.pdf ,
Appendix B, Calculations, on page 6. Each memory error stands a chance
of causing your computer to crash, or worse yet, corrupting a program
or data on your hard drive.


Looking at what Bob recommends (ECC memory) my supplier has only a limited
ammount of ECC memory. Johannes suggests PC3200. If I get 1GB of 3200 ECC,
it will cost £250-£280 (around US$500), which is a bit too much. Can I use
the PC2700 ECC memory with the Abit IC7? This would be about half the
cost. Does it really make that much difference?

Kingston PC2700 512MB ECC CL2.5 Registered Memory
£84.53

Kingston PC3200 512MB ECC CL3 Registered Memory
£134.61

Kingston PC3200 Dual ECC Registered 1GB Kit (2 x 512Mb)
£257.48

Kingston HyperX PC3200 Dual ECC Registered 1GB Kit (2 x 512Mb)
£280.98

Thanks guys,

MS

MS wrote:

Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C
Ghz 800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I
get Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?


2x 512MB Corsair PC3200 is cheaper at £165 from Komplett:
http://www.komplett.co.uk/k/ki.asp?sku=124048&cks=PRL

The Corsair Value range is cheaper still.


--
[ste]

You have touched upon something there. Yes, memory errors due to cosmic
particles can indeed be a problem for large memories. However, the article
also mention that this is more of a problem at higher altitudes with less
atmosphere to shield. It is also a question how critical such rare errors
are, there may be secondary CR checking elsewhere in the system or the
affected software simply fail, thus making the error obvious. The worst
errors are those that remain hidden while everything appears to work. If
your application is 'mission critical' then ECC is appropriate, but that
means that integrity counts more than performance tweaks. If you consider
ECC at all, then you shouldn't consider overclocking as this may equally
lead to odd errors.

I guess you're right and 'mission critical' is the operative point.
Nothing I do is really very system critical (I can live with the
occasional crash with zero warning -- hell anyone who used NT4 and earlier
MS OSs had to live with that for years anyway!), so I think I'll pay less.

I guess the best (in my price range - cheapish 1GB) would be the top of
the 3 below, but my supplier (who's also doing the system build) is
expecting a 'long delay'. What about the following 2 products, would they
be ok on the IC7? Also which would be better, the £3 price difference
being negligent.

Kingmax PC4000 Gold HardCore 500Mhz 1GB (2 x 512Mb) Dual Channel Pack
» Expected: Long delay
£163.30 inc.VAT

Kingmax PC3500 SuperRAM 433Mhz 1GB (2 x 512Mb) Dual Channel
£136.05 inc.VAT

Kingmax PC3200 SuperRAM 400Mhz 1GB (2 x 512Mb) Dual Channel
£133.55 inc.VAT

Thanks,

MS

MS wrote:

Johannes H Andersen wrote:
I recommend using DDR400 (PC3200) memory. In dual channel configuration,
this is an optimal match for the 800 fsb. Anything above will not be
beneficial and could even slow down a little for the syncronisation.

Bob Day wrote:
snip
Then definitely get ECC memory. A white paper I've recently found
indicates that a PC with 1GB of memory running 24 hours a day will
sustain a memory error on an average of about every 5 days. See:
http://www.tezzaron.com/about/papers...1%20secure.pdf ,
Appendix B, Calculations, on page 6. Each memory error stands a chance
of causing your computer to crash, or worse yet, corrupting a program
or data on your hard drive.

Looking at what Bob recommends (ECC memory) my supplier has only a limited
ammount of ECC memory. Johannes suggests PC3200. If I get 1GB of 3200 ECC,
it will cost £250-£280 (around US$500), which is a bit too much. Can I use
the PC2700 ECC memory with the Abit IC7? This would be about half the
cost. Does it really make that much difference?

Kingston PC2700 512MB ECC CL2.5 Registered Memory
£84.53

Kingston PC3200 512MB ECC CL3 Registered Memory
£134.61

Kingston PC3200 Dual ECC Registered 1GB Kit (2 x 512Mb)
£257.48

Kingston HyperX PC3200 Dual ECC Registered 1GB Kit (2 x 512Mb)
£280.98

Thanks guys,

MS

You have touched upon something there. Yes, memory errors due to cosmic
particles can indeed be a problem for large memories. However, the article
also mention that this is more of a problem at higher altitudes with less
atmosphere to shield. It is also a question how critical such rare errors
are, there may be secondary CR checking elsewhere in the system or the
affected software simply fail, thus making the error obvious. The worst
errors are those that remain hidden while everything appears to work. If
your application is 'mission critical' then ECC is appropriate, but that
means that integrity counts more than performance tweaks. If you consider
ECC at all, then you shouldn't consider overclocking as this may equally
lead to odd errors.

GeIL 1GB (2x512MB) PC4400 Ultra Series CAS3
GeIL PC4400 550MHz Dual Channel DDR Ultra Platinum is ready to take the full
advantages of Intel's new chipsets. As for our PC4400 Ultra Platinum which
is capable of running at the speed of 550Mhz, it would be by far the fastest
DDR memory module available in the market now.

- 184pin, Non-ECC, Un-buffered, high performance DDR memory modules
- Hand Picked GeIL 3.5ns 32x8 Density DDR Chip
- 6 Layers Ultra Low Noises Shielded PCB with Gold 30u" Plating
- Optimized SPD for Intel 875/865 chipset Dual Channel DDR motherboards
- Platinum Copper Heat Spreader
- CAS 3 8-4-4 @ DDR550MHz PC4400
- 2.65v-2.95V
- Retail package with clear acrylic case and instructions
- Lifetime return to manufacturer warranty

With Temperature Thermometer

Price: £185.00 (£217.38 Including VAT at 17.5%)

http://www.overclockers.co.uk/acatalog/GeIL_Ultra.html

That's what I've got in my IC7-G . 241fsb ram 1:1

Needs more volts to go higher.

Stu.

"MS" wrote in message
...
wooducoodu wrote:
if you want something for overclocking the ocz pc4000 gold is some of
the
best available right now, though you may want to wait for the revision 2
stuff to come in stock, it should be even better.

OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory
£276.64

It's pretty expensive. How about recommending something a bit cheaper? It
doesn't need to be 'the best available' just something that will give me
reasonable performance.

Thanks,

MS


"MS" wrote in message
...

Hi Everyone,

Many thanks for the tremendous support I've had in these groups advising
me on CPUs and motherboards. I've now decided on the P4 Northwood 2.8C
Ghz
800Mhz CPU and an Abit IC7 Intel 875P P4 Motherboard.

I am totally unsure what memory to buy. The board takes:

-- Four 184-pin DIMM sockets
-- Supports 4 DIMM Single/Dual Channel DDR 400 memory.(Max. 4GB)
-- Supports configurable ECC function

I want to get 1GB but have little idea on the pros and cons, should I
get
Dual Channel? Is DDR 400 a max or a specific I must get?

The OCZ PC4000 Gold Dual Channel 2 x 512 MB DDR EL Memory and Kingston
HyperX 1GB (2x512MB) DDR PC4000 CL3 Dual Channel are both about £260
(about US$480) which seems very expensive. I'd like something cheaper,
perhaps something cheaper that I can safely overclock too?

Recommendations and advise please.

Thanks guys,

MS