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Which ram memory to use and bios settings - PC Desktops

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  • Anonymous Apr 08, 2009

    i downloaded cpuz, but it only tells me that the ram is dual channel ddr sdram and max 400hz but i dont know the type (eg pc****)

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Check that using a program called CPUZ.. that will give you all the stats on your pc hardware..
there, you can see what kind of ram you need to buy to expand it.
heres the link

Posted on Mar 17, 2008

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4 beeps on start up but no screen


four beeps is ram I believe. Take everything off and see if it starts and then put stuff back one at a time and see what is causing the problem

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I have an old acre desk top that I use purely for music. It has 2 512 DDR 3 ram sticks that is replaced with 2 1gb sticks and it won't boot with them so I put the original ones back in and no go. I ha


Sounds like you static shocked a stick. You should always be grounded when handling components. Try putting in only 2@512m sticks at a time until computer boots to find the bad stick. Also,when it boots,check memory size at bootup.Make sure it sees 1G

Dec 28, 2012 | PC Desktops

1 Answer

2.6 volt ram


For the Compaq Presario SR1920NX?

http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&dlc=en&product=3184154

Product information > Product specifications > Compaq Presario SR1920NX Desktop PC Product Specifications,

Memory:
PC3200
That is DDR Sdram, that operates at a maximum frequency rate of 400MegaHertz. (400MHz)

JEDEC voltage standards for DDR Sdram is 2.5 Volts,

http://en.wikipedia.org/wiki/DDR_SDRAM

(Specification standards
Read down )

JEDEC,

http://en.wikipedia.org/wiki/JEDEC

The motherboard, may not have SPD features. (Serial Presence Detect)
Do not know if the ram memory does, either.
SPD,

http://en.wikipedia.org/wiki/Serial_presence_detect

Sometimes it takes turning the computer off, wait 1 minute, then turn it back on. Sometimes it takes 2 to 3 times of this.
If BIOS doesn't set the voltage up 1/10th of a volt, you may have to do it manually in your BIOS Setup (Utility)

Where did you get DDR Sdram that uses 2.6 Volts, and is it high-performance ram memory?
Post the manufacturer name of the ram memory, and it's manufacturer code, in a Comment.

[The normal factory default setting for the ram memory voltage, is 2.5 Volts. I would see if BIOS Setup will allow bumping the voltage up, before I would EVEN think of a BIOS upgrade ]

Regards,
joecoolvette

Jun 02, 2012 | HP Compaq Presario SR1920NX PC Desktop

2 Answers

Acer Aspire M3400 Desktop PC. Memory Upgrade Issue


please check the memory timing settings. if your mixing up ram they may not have the same memory timings and require you to go either higher or to the supported settings that either memory can use. for example if corsair runs at 8-8-8-14 and kingston runs at 10-10-10-16 then you will need to bump the settings to 10-10-10-16 since the computer is trying to set the timings for kingston to 8-8-8-14 which it does not support.

Feb 18, 2012 | Acer Aspire M3400 PC Desktop

2 Answers

HP Compaq dx2200 doesn't detect RAM


Go here and supply the info for your system or mboard model to determine which G.Skil module part numbers are listed as compatible with your system or mboard:
http://www.gskill.com/configurator.php
If your system model or mboard model is not listed, or if it is listed but they don't list the module part number(s) you have, there is no way of knowing whether the ram will work properly in your mboard !!.
........
A common thing that can happen with ram, even ram that worked fine previously, is the ram has, or has developed, a poor connection in it's slot(s).
This usually happens a long time after the ram was installed, but it can happen with new ram, or after moving the computer case from one place to another, and I've had even new modules that needed to have their contacts cleaned.
See response 2 in this - try cleaning the contacts on the ram modules, and making sure the modules are properly seated:
http://www.computing.net/hardware/w...
.........
If your ram passes a ram test, it's working fine, even if you can't determine whether it's listed for your mboard or system model anywhere
If you do a ram test, do that AFTER having tried cleaning the contacts and making sure the ram is seated properly - otherwise any errors found may be FALSE.
If the ram is incompatible with the chipset, or on more recent computers, incompatible with the memory controller built into the cpu, it will likely FAIL a ram test - that is NOT a true indication of the ram being faulty - there is probably nothing wrong with it, and it will pass the test if installed in a mboard it is compatible with.
NOTE: Sometimes incompatible modules (or matched pairs) won't work properly when more than one is installed, but will pass when by itself.
........
If you want to try a memory diagnostic utility that takes a lot less time to run a full pass than memtest86 does, this one is pretty good - Microsoft's
Windows Memory Diagnostic:
http://oca.microsoft.com/en/windiag...
It can be toggled (press T) to do a standard or a more comprehensive set of tests - use the default 6 test one first - if it passes one pass of that, use the latter one. A few of the tests in the latter set are intentionally slower.
If you don't have a floppy drive, see the Quick Start Information at that Microsoft link for how to make a bootable CD of the Windows Memory Diagnostic (you need Windiag.iso - you don't necessarily need to use the program they mention to add it to the CD).
.......
If the part numbers of the ram modules you have ARE listed for you model, and/or in any case. if you STILL get ram errors.....
Some ram manufacturer's modules do not strictly adhere to the JEDEC standards that most mboards bioses use to determine ram settings.
In that case, the ram settings in the bios Setup that the bios has automatically chosen may not be correct.
Check the ram settings in your bios - the ram voltage, and the ram timing numbers - those should be the same as for the specs for the modules themselves. Often the ram voltage and timing numbers are printed on the label on the modules.
If the voltage setting or timings settings in the bios are different from the specs for the ram, change them in the bios. The timing numbers must be as close as you can get to the same, or slower timings (higher numbers = slower) - you won't notice the difference the slower settings make.
If you have a mix of different modules
- don't mix ram that different voltages arespecified for - the bios will force the ram to use the lowest voltage, if "by spd" or similar is used (default settings) - ram that a higher voltage is specified for is more likely to not work properly in that situation.
- the bios settings must be those for the slowest timing settings of all the modules, or slower (higher numbers = slower).
.......
G.Skil is one of the "also ran" ram module manufacturers.
According to The Muskin web site, some "also ran" ram module manufacturers test their ram modules when they're by themselves in a mboard, to get the best (fastest) timing ratings. When you install more than one of their modules, the timing may not work properly with more than one module installed, but if you change the timings in the bios Setup so that the timings are slower (higher numbers) , the ram will work fine.
I have seen several examples of people who posted on this site having to do that with G.Skil ram.

May 27, 2010 | HP Compaq dx2200 PC Desktop

1 Answer

DELL black screen-bad pool header- RV 370 P/N 113-A62801-106 BIOS


It appears the BIOS doesn't like its own checksums; borrow a replacement BIOS to boot from, then flash your one with bad pool checksums.  Or perhaps it's really testing shadowed in DDR2:

It makes it seem like the memory connection or the memory has gone bad; it happens over time that memory will develop bad bits, but it's more common for the drive levels to become changed in the BIOS or dust accumulate on the PCB making a few lines misbehave.  

First try dusting (vacuuming) the fans and PCB, carefully making sure the memory is well seated; then try using a single DIMM of memory which boots the PC in any slot (though not of course this is no way to keep running) to prove the motherboard still good, in which case you can just replace the RAM configuration.  Alternately you can change the RAM voltage to suit the RAM you have and the motherboard characteristics to recover a good operating parameter set.

  Per the message, It seems like it's reading off the part number of a particular DIMM, (which might be handy if the stuff is new enough to be under warrantee for a set swap.)  Then there's the BIOS spec.

Mar 19, 2010 | Dell Dimension 5100 (D51L1) PC Desktop

5 Answers

Tried to upgrade ram with 2 new pc133 sticks of 256mb ea. Didn't work. What's wrong? Are there switches on the motherboard I need to change? Or something else?


No there are no DIP switches to change, or jumpers to move on your motherboard, in regards to your BIOS recognizing ram memory installed.
(BIOS. Basic Input/Output System. This tiny program, {64MB in size usually}, that is burned into your BIOS chipset, is what recognizes ram memory on your computer)

Things to know about the older Sdram ram memory.
1.It's really SDR Sdram. Single Data Rate Synchronous Dynamic Random Access Memory.
DDR is Double Data Rate Sdram, DDR2 is Double Data Rate 2 Sdram, and so on.

Point? All ram from SDR to DDR3, IS Sdram.

2.Standards have been set by JEDEC for computer ram memory starting from DDR Sdram on up. This standards were not implemented back in the day of SDR Sdram.

Point? Ram memory manufacturers didn't all follow the same standard, and ram memory made for one computer, would Not work in another computer.
This means you need THE ram memory for YOUR eMachines computer.

Main factors when buying SDR Sdram,
A.Correct type. You know this. SDR Sdram.
168 gold plated contact pins on the bottom of the ram 'stick'. (82 on each side)

B.Correct 'Speed'. ('Speed' is slang for Frequency Rate) You know this. SDR Sdram that operates at a frequency rate of 133MHz. (Or also known as PC133)

C.It must be low density Non-ECC ram memory. It cannot be high density ECC. (Error Control Correcting. Used for Server computers mostly)

D.Correct CAS Latency. Also known as Ram Timings. 3-3-3-3-2 would be normal for SDR Sdram.

E.Correct Chip Configuration. How the DRAM chips are accessed. DRAM chips are the black rectangular chips on each side of your ram memory 'stick'. Also what size the DRAM chips are in MegaBytes. (MB)

F.What the Maximum TOTAL Amount is for the motherboard. Is it 256MB? 512MB? Or more?

G.What the Maximum Amount is for EACH ram 'slot'. (Correct speak for 'Slot' is Bank)

H.Do you have four ram 'slots'? You MUST have a ram stick in Slot 1. This is the slot closest to the processor. It is the first ram slot the processor 'reads'.

Jul 12, 2009 | E-Machines eMachines Desktop PC

2 Answers

Continuous beeping sound


Do you get video? If so then it could be a stuck key on the keyboard.

Do you get no video? If so then reseat the RAM.

Feb 10, 2009 | Sony VAIO PCV-RX370DS PC Desktop

1 Answer

Trying to upgrade RAM - won't boot after new RAM installed


Install the RAM on memory slot and Switch on your system and go to BIOS settings. There you can check whether your RAM is working properly or not. If it shows no memory installed then the RAM Chip may be damaged.

Jan 08, 2009 | E-Machines T6520 PC Desktop

4 Answers

ADDED NEW RAM NOW MEDION WON'T BOOT UP


hi

i needs to the rams are in same speed. if it not you put a rams in same speed

next you need to study your motherboard manual it supports the ram speed.if ever this is ok. then your ram will be faulty

Mar 19, 2008 | Medion MD-1704 PC Desktop

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