Single Sided vs Double Sided

[aaaheavy]

I have a SOYO SY-7YSI+ board that keeps telling me at bootup that "Main Memory Clock is 100MHZ". Everything in BIOS is set on Auto. I've tried three different "known working" PC133 modules. Won't read them at 133 Mhz.

Here's a Dumb Question???

Does single sided module mean that it only has chips on one side of the module?
Also does Double sided mean that it has chips on both sides of the module?
If not, please clarify. I've been to several sites and can find no mention of this.

Click here for <A HREF="http://www.hovyo.com/misc/config-mem.gif" target="_new">http://www.hovyo.com/misc/config-mem.gif</A>
Configure Memory Image. From SY-7ISA+ board.

Thanks for any clarification.

 

[addiarmadar]

Yes thats right. Each side represents a bank so single side is single bank ram and double side is twin bank. This is very important to know for mobo may only support certain bank of ram and have limited amount or banks.

Barton 2500+ @ 2200mhz (10x220 vcore @ 1.775)
Asus A7N8X Dlx 440 FSB
1gb Geil GD pc3500 Dual Channel (2-3-3-6)
Segata 80gb SATA 8.5ms seek
ATI Radeon 9800 Pro(420/700)

 

[Crashman]

What processor are you using? I don't think the chipset will allow you to run your RAM at 133 and CPU bus at 100. I think the only available CPU:RAM bus settings for that chipset are:

66:66
66:100
100:100
133:100

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>

 

[aaaheavy]

Yer right Crash, I'm testing with a 600 Celly at 66 FSB. It won't read the PC133 module.

Thanks for taking the time to answer!!

 

[aaaheavy]

Thanks addiarmadar,

Excellant clarification.

 

[Crashman]

WTF, first you said it reads PC133 at 100MHz, now you're saying it doesn't read it at all?

I showed you the options I know of for the i815/E/EP chipset. You can have CPU:RAM at 66:100, but not 66:133, that ratio is not valid for this chipset. If it reads PC133 at 100, you're fine, if not you have a defective part.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>

 

[aaaheavy]

Crash,

<b> --- It won't read the PC133 module --- </b>

I meant, It won't read the PC133 module at 133MHZ,
Sorry about that.

Thanks again for good information!

 

[silverpig]

That's because there's absolutely no difference between PC133 and PC100 ram except that the 133 is rated to go higher. SDRAM is SDRAM.

In order to get it to 133 MHz you'll have to use the 66:100 setting for the ram in the bios, and then overclock up to 100:133 (which I think is another one of the default speeds).

Some day I'll be rich and famous for inventing a device that allows you to stab people in the face over the internet.

 

[Crashman]

Nah, the 66:100 ratio would give him 100:150 if he overclocked the CPU that far. And as I recall the i815 offered only the ratios I listed earlier, 133:100 but not 100:133.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>

 

[aaaheavy]

Thanks silverpig,

I think I've got it pretty much figured out.
Thanks again for your interest.