REGISTER | LOGIN
Breaking News
Engineering Investigations

What's This Screeching Sound & Why Does it Occur?

NO RATINGS
View Comments: Newest First | Oldest First | Threaded View
<<   <   Page 2 / 3   >   >>
MeasurementBlues
User Rank
Author
Re: Memory Info
MeasurementBlues   3/5/2017 11:11:08 PM
NO RATINGS
David,

The motherboard is AMD.

As for "get a new computer," This is the new computer. The user is quite elderly, though quite perky for her age. Her previous computer was giving some trouble and went to a local computer shop for an upgrade from Vista to Win7. The technician at the shop said it needed a new power supply and so the cost of a newer used PC with Win7 was less that the estimate for the repair. So, I ended up with the older PC, which had a scant 512MB on it. So, she bought her current PC.

Have you ever seen Win7 with 512MB? Trust me, you don't want to see how slow it is. So, I increased the memory to 4GB and it runs quite well. I used it for about a year as my wife's PC at home to get her used to Win7 and off XP, then we bought her a new Win7 PC for her office, then a Win10 PC (same HP hardware) for home. The upgraded old PC is in the closet, but it's a good backup if needed.

The user of the AMD PC was dissappointed with Win7 because Microsoft took away her Freecell Solitare game, replacing it with an online version. I managed to find an offline version and isntalled it. She's very happy because the online version wasn't an option with her dialup internet. The online game would cause her to tie up her phone line.

I looked into DSL but it's not avilable at her home, only cable or Verizon FiOS (around $70/month), neither if which she will pay for so she stays with her $10/month dialup.

David Ashton
User Rank
Author
Re: Memory Info
David Ashton   3/5/2017 10:16:51 PM
NO RATINGS
Martin... " I found 1 GB DIMMs online at $17 each, but then need four of them. Total $68. "

That seems expensive.  I found mine here - A$ 27 (=US$ 20) for four x 2GB.  However there is a note: "Buyer note: it is hgih density, Only fit for AMD Motherboard. It can not support any intel"

As I recall my MB was Intel but the manual did specify DDR2.  I Actually discussed it with one of our IT gurus before buying them and he said there is only DDR2 - not AMD DDR2 and INTEL DDR2.  But maybe this is why I got the only half available problem.  Do you know if the MB you are dealing with is Intel or AMD?  I'm sure my IT Guru's advice to you would be the same as he gave me - "Get a new computer, Dave..."

Remember the good old days when SIMMs only had 30 pins and the only thing you had to worry about was how many KB / MB they had??  :-)

MeasurementBlues
User Rank
Author
Re: Memory Info
MeasurementBlues   3/5/2017 3:34:23 PM
NO RATINGS
JGrubbs,

 

I installed 4x1GB DDR2 modules. No difference. Same audio problem so I put hte 4x512MB modules back in and will return the 1 GB modules. At one point, I had disabled the audio driver because she doesn't use sound at all. In the end Grandpa and friend really wanted to add memory thinking that family photos sent by e-mail would load faster. But the internet connectin is dialup. The only way for images to load faster is with a fester connection, but that costs money. DSL is not avilable at that location, only cable and FiOS, but they cost too much.

JGrubbs
User Rank
Author
Re: Memory Info
JGrubbs   3/1/2017 6:03:19 PM
NO RATINGS
David

Not sure about Ram Disk, like you said it is something from the dim and distant past.

The 64 bit processor can run the 32 bit or the 64 bit versions of Win 7 Pro. Here is info for determining which version you have.

https://support.microsoft.com/en-us/help/827218/how-to-determine-whether-a-computer-is-running-a-32-bit-version-or-64-bit-version-of-the-windows-operating-system

Hope this helps

David Ashton
User Rank
Author
Re: Memory Info
David Ashton   3/1/2017 2:59:19 PM
NO RATINGS
@JGrubbs thanks for chiming in on this.  My processor is an Intel Q6600 and the OS is Win 7 Professional, both 64 bit apparently, so still does not make sense (to me, anyway :-).... could you comment further?  Thanks for the tip about the Ram Disk....I remember setting something like that up in the dim and distant past, maybe with DOS on top of its 640K limit?  How do you do that in Windows - is it in the OS or do you have to get another program to do that?

JGrubbs
User Rank
Author
Re: Memory Info
JGrubbs   3/1/2017 11:22:12 AM
NO RATINGS
David

WIN 7 32 bit version addresses only 4 GB , WIN 7 64 bit addresses 8, 16, or 192 GB depending on which version ( Home Basic, Home Premimum or Professional). You can set up a RamDisk with the other 4 GB for pagefile and other temporary files.

David Ashton
User Rank
Author
Re: Memory Info
David Ashton   3/1/2017 3:11:04 AM
NO RATINGS
Martin I had a similar upgrade not too long ago on my Win 7 PC.  I think much the same kind of memory (DDR2).  It said it could take up to 8GB of RAM, so I purchased 4 x 2GB sticks.  It works, but only 4 GB appears on the POST message, and is usable.  The strange thing is that if you look in my computer / System Properties, it says 8.00 GB (4.00 GB Usable).  If it knows it's there, why can't it use it?  4GB is better than the 2GB I had before, so I live with it.

Old story....to err is human, to really foul things up takes a computer....

How did your upgrade go??

 

JGrubbs
User Rank
Author
Re: Memory Info
JGrubbs   2/28/2017 11:29:00 PM
NO RATINGS
MeasurementBlues

Hope the 4 x 1 GB ram modules fix the problem.

When I went from Win 8.1 to Win 10 the audio volume would randomly jump to 100%.

Updating the audio drivers corrected the problem.

MeasurementBlues
User Rank
Author
Re: Memory Info
MeasurementBlues   2/28/2017 6:11:31 PM
NO RATINGS
jGrubbs

A set of 4 x 1 GB DDR2 modules just arrived. I'll install them over the weekend.

 

jnissen
User Rank
Author
Re: Screeching Sound
jnissen   2/28/2017 2:16:58 AM
NO RATINGS
Do the sounds only come from the speaker or the power supply? If the switching supply were struggling with the new memory and the switching rate were in the audible range then that could account for the noise. Not sure why a sound board and such would start screeching unless the supply were taxed and you now have more supply ripple with the heavier load.

As a precaution leave your cell phone on the other side of the room. My older PC freaks out when the phone causes my speakers to chirp and pop.

<<   <   Page 2 / 3   >   >>

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed