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

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JGrubbs
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Memory Info
JGrubbs   2/21/2017 11:31:55 AM
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Here is a link to the Service Manual for the dc5750.

http://h20566.www2.hp.com/hpsc/doc/public/display?sp4ts.oid=3252512&docLocale=en_US&docId=emr_na-c00803472

Appendix F has info on the memory supported, it shows 256MB, 512MB and 1GB DIMMs.

Don't know 2GB DIMMs are the problem.

 

MeasurementBlues
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Re: Memory Info
MeasurementBlues   2/21/2017 12:48:20 PM
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JGrubbs,

Thanks for the link. It's quite possible that the PC doesn't support 2 GB DIMMs. I found 1 GB DIMMs online at $17 each, but then need four of them. Total $68. The person paying may not want to spend that much given that the PC is used mostly for email and a little browsing on a dialup connection. The benefits may just outweigh the costs.

MeasurementBlues
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Re: Memory Info
MeasurementBlues   2/22/2017 6:39:06 PM
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I ordered 4x1GB DDR2 DIMMs from Crucial.com. Hopefully, this will work.

David Ashton
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Re: Memory Info
David Ashton   3/5/2017 10:16:51 PM
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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
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Re: Memory Info
MeasurementBlues   3/5/2017 11:11:08 PM
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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
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Re: Memory Info
David Ashton   3/5/2017 11:40:51 PM
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Martin...if your user is not unhappy and still only on dialup then I'd adopt the old saying..."If it ain't broke, don't fix it".   If her biggest beef is losing Freecell, you're doing well...  :-)

I just got a win 10 laptop. I hate win 10.  it tries to be clever and if you hover too long over something, it assumes you want to open it. GRRRRR!!  I guess there might be a setting somewhere where I can lengthen / disable this, but haven't found it yet.  Fortunately I have had a Win 10 phone for a bit so that helped.  Come back XP, all is forgiven.....

 

DMcCunney
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Re: Memory Info
DMcCunney   3/6/2017 1:30:58 PM
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@MeasurementBlues: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.

Every version of Windows wants more memory.

I was given an ancient (circa 2005) Fujitsu notebook by a friend who had upgraded but did't want to see the machine wind up in a dumpster.  She said it was "Slow slow slow..." and was right.

It had a 787mhz Transmeta Crusoe CPU (an early attempt at power saving), and IDE 4 HD (a BIOS limitation), and a whopping 256MB RAM, of which the CPU took 16MB off the top for "code morphing".

It came to me with WinXP SP2 installed, and took 8 minutes to simply boot, and longer to do anything once up.  XP wants 512MB RAM to even think about working, so that was no surprise.  A daughtercard adding 128MB more RAM was still available, but would cost more than multiple GB of RAM for a current system, and still wouldn't bring it to something XP would work well in.

I swapped in a different HD from a failed laptop, repartitioned, and installed Win2K Pro SP4, a couple of flavors of Linux, and FreeDOS in a multi-boot configuration.  All of those would run in 240MB RAM after tweaking.  The result wasn't a speed demon, but was usable.

The current desktop is a refurb Dell small form factor unit.  It came with 4GB RAM, a quad core 2.4 ghz Xeon CPU, a 240GB SATA HD, and Win7 Pro.  I added a 240 GB SSD to be boot drive, and RAM to bring it to the 8GB max the mobo would take.  It dual boots Windows and Ubuntu linux.  Performance is fine.

I upgraded in place to Win10, which has been, um, "challenging".  Two laptops here got the Win10 upgrade and Just Work, but the desktop has been "New and different Win10 BSODs.  Collect the while set!" and I have been.

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.


<blink> Win7 never did that here.  Win10 did.  The built-in games got replaced by online versions.  That was understandable - as far as MS is concerned, the Enterprise is their core market, and Enterprise customers take dim views of stuff employees might use on their PCs instead of working.  The games were originally included back in the Win3.X and earlier days as gentle introductions to GUIs and mice, and that hasn't been needed for a long time.  I found a package someone created that removed the version checksin the Win7 games that prevented them from running on Win10 and packaged tham as an installer that let you pick which you wanted and put them on Win10, and they work fine. :-)

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.

If her needs are met by dial-up, more power to her. And DSL is an increasingly unlikely option.  It requires copper to the doorstep, and you must be within a working distance of the telco central office where the DSLAM that enables DSL is installed.  I had DSL back when as my original broadband because cable modem wasn't available where I am, but I lived in walking distance from a CO.  When cable modem service was available, at three times the DSL bandwidth at the same price, I happily switched.

>Dennis

TonyTib
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Re: Memory Info
TonyTib   3/6/2017 2:22:27 PM
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If you could find Freecell on Linux, maybe that would be an option.  My kids are using our old Thinkpad T43 with 1.5G RAM, with Lubuntu and an upgraded (7200 RPM from 5400 RPM) hard drive, and are able to work pretty well.

Windows 10 does OK on my 2G RAM Asus T100TA Atom-powered 2-in-1.

For internet access, if data usage isn't high, wireless is one option, but will probably be at least $40/month.  Another possibility to reduce overall costs is to look at bundling or VoIP.  for example, instead of doing POTS + dialup, look at the cost increase for Cable + VoIP (e.g. Obi 200 with GV or Ooma), or cable + cable telephone service.  You should be able to port the phone number.  But then again, she might not to give up the good, old, but reliable telephone service.

MeasurementBlues
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Re: Memory Info
MeasurementBlues   3/6/2017 2:42:08 PM
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TonyTib,

I would never give up my POTS line for two reasons: Reliability and Internet access. I have DSL, runs nicely at about 6.5 Mbits/s. My office phone is VoIP. It works pretty well, but has ups and down on long calls. Not so with a POTS line.

$40/month is too high in this case. Even $25/month for DSL might not have happened if it were available.

TonyTib
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Re: Memory Info
TonyTib   3/6/2017 3:05:41 PM
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To VoIP or POTS depends on your priority and circumstances.  At work, I'll be moving from POTS to VoIP real soon now (and they're putting in some fancy equipment to handle VoIP) -- but I don't normally do long phone calls at work.

At home, POTS at $24/month (probably more now) for the cheapest phone service wasn't worth it, so I switched to VoIP, and have been happy with it.  But, we actually have a POTS line since my current DSL service ($53/mont with taxes, reaches 18Mbps) comes with a POTS line, like it or not.

 

MeasurementBlues
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Re: Memory Info
MeasurementBlues   3/6/2017 3:14:29 PM
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TonyTib,

When a friend's office was closing, I as able to get a laptop that was just sitting around. It had not been used for a couple of years. It started life with Vista, "downgraded" (or up graded as the case may be) to XP. It had 2 GB of RAM. I installed Win7. It ran but was a bit slow so I increased the RAM ro 4 GB and it was much happier. Then I did the downloaded upgrade to Win10, which worked fine. With that as some confidence, I did the same to my personal laptop, which was just aver a year old at the time. I use both laptops.

I still have two DELL lattitude D600s (XP). One is in the basement, used for testing an old printer and for checking out an analog oscilloscope that came my way.

perl_geek
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Re: Memory Info
perl_geek   3/6/2017 3:42:02 PM
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Just out of scientific curiousity, did you try installing only 2GB with either the 1 or 2GB cards? That might have pointed out whether the problem was related to capacity or how it was achieved.

MeasurementBlues
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Re: Memory Info
MeasurementBlues   3/6/2017 4:09:49 PM
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perl_geek, I think I tried a single 2 GB DIMM, but san;t recall if the screech happened or not. Even it it didn't there was no increase in system memory waht what was the point other than curiosity?

MeasurementBlues
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Re: Memory Info
MeasurementBlues   3/6/2017 9:05:40 AM
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David wrote:

I'm sure my IT Guru's advice to you would be the same as he gave me - "Get a new computer"

And there you have the difference between IT people and engineers. IT people say, "get the latest technology" while engineers say "I can fix or upgrade the old one."

In the case described here, if it costs money, it's not worth doing.

If it were my PC, I would have kept looking for a solution, probably starting with updating the audio driver (setting a restore point before installing), but in the end, the upgrade won't help with download speed from a dialup, so no need.

It's time to take a walk to the post office to return the "incompatible" memory.

David Ashton
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Re: Memory Info
David Ashton   3/6/2017 2:59:24 PM
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@Martin... "And there you have the difference between IT people and engineers...."

Yeah, the old throwaway society at work again.  My PCs for the past few years have been made with cast-off motherboards from my mate at work, who has to have the latest and greatest (he's into games and porn).  I get them for a fraction of what they cost him.  And they work just fine for what I do (Word/Excel, downloading the odd datasheet, looking at EET, and occasionally catching up on TV I've missed (in which case my DSL speed is the main factor, if I do it early evening when everyone else is online, it's terrible).  And my hoped for 8GB upgrade...well I ended up with 4GB as opposed to my old 2GB, for under $30...all good.

We are shortly to be getting NBN (National Broadband Network) which started out as fibre to the home but has been watered down by our current government (who'd rather use the money to subsidise coal mines) to fibre to the kerb (a box down the street) with our old copper as the last mile.  It should still improve speed, but needs yet another box to go wrong (and they do, I'm already dealing with them at work) between me and the internet. Watch this space....

MeasurementBlues
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Re: Memory Info
MeasurementBlues   2/28/2017 6:11:31 PM
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jGrubbs

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

 

JGrubbs
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Re: Memory Info
JGrubbs   2/28/2017 11:29:00 PM
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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
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Re: Memory Info
MeasurementBlues   3/5/2017 3:34:23 PM
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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.

David Ashton
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Re: Memory Info
David Ashton   3/1/2017 3:11:04 AM
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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
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Re: Memory Info
JGrubbs   3/1/2017 11:22:12 AM
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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
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Re: Memory Info
David Ashton   3/1/2017 2:59:19 PM
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@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
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Re: Memory Info
JGrubbs   3/1/2017 6:03:19 PM
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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

Max The Magnificent
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Screeching Sound
Max The Magnificent   2/22/2017 10:23:28 AM
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@MeasurementBlues: When I saw the title to this column -- What's This Screeching Sound & Why Does id Occur -- I thought you were talking about when my wife comes home and sees one of my hobby projects scattered around the family room LOL

MeasurementBlues
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Re: Screeching Sound
MeasurementBlues   2/22/2017 6:40:44 PM
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@Max,

"when my wife comes home and sees one of my hobby projects scattered around the family room LOL"

If I saw you scattered around my family room, I'd screech too. But then again, I don't have a family room.

jnissen
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Re: Screeching Sound
jnissen   2/28/2017 2:16:58 AM
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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.

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