Buying used CPU, help needed

[Gamerz]

So i've been thinking to get a new PC as a whole but seeing how much the GPU and RAM prices are inflated i thought just to patch up the PC i have right now

 

Intel G630 @ 2.7 Ghz

Nvidia GTX 960 2GB

12 GB RAM

MSI H61 P20 G3

 

I have seen an used i5 3470 for 45 bucks and thought maybe to go for it (i'm leaving everything else the same).

How safe is it to buy used CPUs? Will my mobo support it?

Its my first time getting a CPU so idk what i need to look into. I'm guessing the Intel G630 and i5 3470 have the same socket? There's something on the intel site about RAM speeds and i'm confused if my will be compatible (they work on the PC i'm using right now obviously. Any help would be appreciated

[Hermes02]

Oof, this is a hard question. Normally I don't buy any used computer parts for fear that they may not work and could have been modified in some way shape or form so I would not suggest buying a used CPU or GPU

[SilkyDistress]

6 minutes ago, Gamerz said:

So i've been thinking to get a new PC as a whole but seeing how much the GPU and RAM prices are inflated i thought just to patch up the PC i have right now

 

Intel G630 @ 2.7 Ghz

Nvidia GTX 960 2GB

12 GB RAM

MSI H61 P20 G3

 

I have seen an used i5 3470 for 45 bucks and thought maybe to go for it (i'm leaving everything else the same).

How safe is it to buy used CPUs? Will my mobo support it?

Its my first time getting a CPU so idk what i need to look into. I'm guessing the Intel G630 and i5 3470 have the same socket? There's something on the intel site about RAM speeds and i'm confused if my will be compatible (they work on the PC i'm using right now obviously. Any help would be appreciated

Buy it but before you swap it with your old flash the BIOS to latest version.

[G27Racer_188]

Yes, that CPU will work in that board. CPUs are pretty safe to buy used.

[Thermosman]

Yes, and it would work in your mobo

[Gamerz]

3 minutes ago, SilkyDistress said:

Buy it but before you swap it with your old flash the BIOS to latest version.

Already updated to the latest BIOS

3 minutes ago, G27Racer_188 said:

Yes, that CPU will work in that board. CPUs are pretty safe to buy used.

 

1 minute ago, Thermosman said:

Yes, and it would work in your mobo

What about the i5 3570, its just couple bucks difference. Should i go for that, will it work?

[Thermosman]

1 minute ago, Gamerz said:

Already updated to the latest BIOS

 

What about the i5 3570, its just couple bucks difference. Should i go for that, will it work?

Any 2000 series or 3000 series will work in your mobo. Will perform better, not sure how much

http://cpu.userbenchmark.com/Compare/Intel-Core-i5-3570-vs-Intel-Core-i5-3470/m793vs2771

Edit: difference is just 3.2ghz vs 3.4ghz, id go for 3570

[Gamerz]

3 minutes ago, Thermosman said:

Any 2000 series or 3000 series will work in your mobo. Will perform better, not sure how much

http://cpu.userbenchmark.com/Compare/Intel-Core-i5-3570-vs-Intel-Core-i5-3470/m793vs2771

Edit: difference is just 3.2ghz vs 3.4ghz, id go for 3570

Oops i miss typed it, Its a H61M P20 G3. Forgot the M, any difference?

[Thermosman]

Just now, Gamerz said:

Oops i miss typed it, Its a H61M P20 G3. Forgot the M, any difference?

No, lga1155 still

[Gamerz]

1 minute ago, Thermosman said:

No, lga1155 still

Awesome, guess i'll go with 3570 then. Sorry for being so skeptical, i'm so nooby to all of this.

[G27Racer_188]

8 minutes ago, Gamerz said:

Already updated to the latest BIOS

 

What about the i5 3570, its just couple bucks difference. Should i go for that, will it work?

Yes, as @Thermosman said, any 2000 or 3000 CPU will work, with highest being i7 3770K and i7 2700K.

[Gamerz]

@Thermosman@G27Racer_188 Can you guys help me with troubleshooting? I've tried the CPU but my PC is stuck into an endless loop. It booted once in the BIOS settings and i've sen it as 3570 but after that it continued to infinite loop again.

 

I've updated my BIOS to latest, tried with multiple RAM slots in different DIMMS and reseted CMOS but nothing's helping. The CPU at fault or something else?

[Thermosman]

Try:

Using your old cpu

Booting off of anything that is not windows from before cpu upgrade

Make sure cpu cooler is properly tensioned

Boot with integrated gpu

Turning off power completly, unplug, hold power button for 30 seconds, clear cmos for 30 seconds

Take put cmos battery and turn on computer

[Parideboy]

5 minutes ago, Thermosman said:

Try:

Using your old cpu

Booting off of anything that is not windows from before cpu upgrade

Make sure cpu cooler is properly tensioned

Boot with integrated gpu

Turning off power completly, unplug, hold power button for 30 seconds, clear cmos for 30 seconds

Take put cmos battery and turn on computer

If you unplug the PSU the circuit is broken, there's no power anymore. Holding the power button is totally useless.

[Thermosman]

6 minutes ago, Parideboy said:

If you unplug the PSU the circuit is broken, there's no power anymore. Holding the power button is totally useless.

No it discharges the capacitors, and them the cmos battery powers the cmos chip

[Parideboy]

20 minutes ago, Thermosman said:

No it discharges the capacitors, and them the cmos battery powers the cmos chip

There's nothing to discharge. Capacitors aren't designed to hold an electric charge that long, the CMOS battery would be useless otherwise. When the cord is unplugged, capacitors lose their charge in a matter of seconds. There's no power "trapped" in the system, that's not how electricity works.

 

This myth has gone too far in the computer industry.

[Thermosman]

24 minutes ago, Parideboy said:

There's nothing to discharge. Capacitors aren't designed to hold an electric charge that long, the CMOS battery would be useless otherwise. When the cord is unplugged, capacitors lose their charge in a matter of seconds. There's no power "trapped" in the system, that's not how electricity works.

 

This myth has gone too far in the computer industry.

Yes there is lol its no myth. I meant the pressing the power switch drains the capacitors, and the cmos battery powers the cmos chip. The capacitors do not power the cmos when the pc is off

[Gamerz]

Seems like the CPU was broken, went to the guy and he checked into it with my mobo.

I ended up trading the i5 3570 with an 3570S and its pretty sweet, gaming at 60 is bliss ;-;

[Salacious B Crum]

1 hour ago, Parideboy said:

If you unplug the PSU the circuit is broken, there's no power anymore. Holding the power button is totally useless.

Not accurate the capacitors still have to shed their stored voltage, that is why often when you unplug it and press the power button you will see momentary activity from your board

[Parideboy]

1 minute ago, mrbilky said:

Not accurate the capacitors still have to shed their stored voltage, that is why often when you unplug it and press the power button you will see momentary activity from your board

1

They store voltage momentarily. Of course, if you unplug the cord and turn it on right away there'll still be some activity on the system, that's their purpose. When I shut down my system my peripherals stay on for a couple of seconds. They do so because there's no power, not because they "drained all the juice from the capacitors" (that lose power soon after)

1 hour ago, Thermosman said:

Yes there is lol its no myth. I meant the pressing the power switch drains the capacitors, and the cmos battery powers the cmos chip. The capacitors do not power the cmos when the pc is off

4

If done with the cord in the socket and psu switched off, of course. The circuit is closed even if there's no power (besides the PSU capacitors). Holding the power button has the same effect of removing the CMOS battery. Trying to turn on the system with no power simply "tells" a microprocessor on the board to get power from the PSU.

Quote

A power supply is not fully off (normally it has a small 5 volt supply that is always on) even when the system is shut down. It provides some power to the system allowing the board to keep its settings, run the clock and activate the power switch to tell the power supply to switch fully on. Many boards have an LED on to remind users that the board still has some power applied.

 

"The capacitors do not power the cmos when the pc is off"

Of course they don't. They can't store power that long. And that's why there's battery for it

 

 

[Thermosman]

36 minutes ago, Parideboy said:

They store voltage momentarily. Of course, if you unplug the cord and turn it on right away there'll still be some activity on the system, that's their purpose. When I shut down my system my peripherals stay on for a couple of seconds. They do so because there's no power, not because they "drained all the juice from the capacitors" (that lose power soon after)

If done with the cord in the socket and psu switched off, of course. The circuit is closed even if there's no power (besides the PSU capacitors). Holding the power button has the same effect of removing the CMOS battery. Trying to turn on the system with no power simply "tells" a microprocessor on the board to get power from the PSU.

 

"The capacitors do not power the cmos when the pc is off"

Of course they don't. They can't store power that long. And that's why there's battery for it

 

 

Im not saying that the capacitors power the cmos, however it is adviseable to drain the capacitors before clearing the cmos because of the 5v standby

[Salacious B Crum]

It's advisable to discharge capacitors whenever working on anything that has them, go grab ahold of your central a/c capacitor before it has time to discharge and get back to me or your widow that is, now I'm not saying you will light up like a christmas tree from your pc's capacitors but I am saying that you risk damage if you do not take the extra step to discharge them and go trying to short the cmos pins on your board so the idea that just unplugging your power supply is flawed thinking at best.